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20111102125622715.pdfrnc.1S911 121 5TH AVENUE NORTH < EDMONDS, WA 98020 ^ (425) 771-0220 • FAX (425) 771-0221 Website: wwwdedmonds,wa.us DEVELOPMENT SERVICES DEPARTMENT Planning • Building ® Engineering December 15, 2009 Greg and Kathy Brewer 658 Maple Street Edmonds, WA 98020 GARY HAAKENSON MAYOR RE: Use of Comfort Foam 178 Insulation System at 658 Maple Street, Edmonds Dear Mr. and Mrs. Brewer: The Office of the City Building Official is in receipt of your request for Alternate Materials Method of Construction, Design or Insulating Systems as set forth in WSEC 103 to use Comfort Foam 178 Insulation System for roof insulation. Section 502.1.4.3 of the 2006 Washington State Energy Code requires ventilation between the top of the insulation and roof deck. Comfort Foam 178 System is installed directly to the underside of the roof deck without this air space. The 2004 Supplement to the International Residential Code and proposed Washington State Energy Code Amendments support the installation of air impermeable insulation to be applied directly to the underside of the roof deck. Comfort Foam 178 System is air impermeable (ASTM E283 with less than 0.02 US -m2). Product has also been evaluated by ICC in report ESR -2642. After review of all of the information provided, it is my determination as Building Official for the City of Edmonds that the use of Comfort Foam 178 Insulation System is approved as an Alternate Materials Methods of Insulating Systems for roof insulation under the provisions of WSEC 103 at 658 Maple Street, Edmonds with the following conditions: ® The product must be installed in accordance with the manufacturer's installation instructions and ICC ESR -2642 ® The unvented attic space is completely contained within the building thermal envelope. ® No interior vapor retarders are installed on the ceiling side of the unvented attic assembly. ® The installation meets the minimum R -value for ceiling insulation as required in the Washington State Energy Code. Sincerely, IAL AtM Ann Bullis, CBO Building Official Incorporated August 11, 1890 Sister Citv - Hekinan. Janan Edmonds Remodel Inc P.O Box 1692 Edmonds WA 98020 To: Edmonds building dept. Office/Fax 425-712-30377 December 14, 2009 Cell 206227-1029 The purpose of my letter is to apply for an alternate materials and method of construction. My building permit number is 20080991. The site address is 658 Maple. t would like to use a polyurethane foam insulation which meets and exceeds building code requirements for my structure. This method of insulation is compliant with the 2006 IBG, IRC, and the IECC (please see attached specifications) The reason for using the foam fill is to achieve a proper vapor barrier and required r -values while maintaining the integrity and character of the 100 year old structure. The accompanying drawing indicates the walls and ceiling area of the studio/garage to receive the foam fill product. The existing 2x4 walls will receive a foam fill rated at R-21, the vaulted ceiling will receive 5" of foam fill to achieve a rating of R-30. This method appears to be the most efficient way to insulate and protect against air infiltration for the old structure. Please consider my application for alternate materials and method of construction. If you have any further questions please call. Sincerely, Greg Brewer 206-227-1029 FV 1 C P t";l r-,`9 i S RV F- 'Vt( FLOOR PLAN NOTES: �DSee ceiling plan for addifi information. All dimensions are face of s7 - 'O'Verify I., all conditions,* dimer construction bring to the attx the Architect or General coin The 2006 International Built -Code and city zoning ordinit drawing,, notes or dimension attention of the Architect dis r. 5 Deviance's s from the drawing commencing With work Note new windows and door schedules: Verify all finishes with ownc III Provide. 5/8 type x gypsm between studio and garageci and mud alljoints. A Lower to upper stairs: continuous handrail I tread:nose and return to wall clearance from nose trea&tc .0-2x- P.T. sleepers over drain-ag Place vapor barrier to heated Subject to the terms and conditions stated in this agreement, Contractor is willing to furnish to you all material and labor required for the Scope of Work described below: Draft stop, fire block, fire stop (UBC 708.2.1 et seq., formerly 2516(f), or locally adopted equivalent), and fire rated caulking are not included within Contractor's Work unless specifically listed below. CELLULOSE NOTICE: If cellulose is to be applied with a wet spray application, you must allow adequate time for it to cure and dry before installing drywall or other materials. The adequate time required varies depending upon climate, altitude, and weather. Do not install vapor barriers, vapor retards, drywall, or other interior finish until the material has dried to less than 20% moisture content. Time to cure will vary based on climate and weather. Be sure to schedule your trades accordingly. Model Name: OFFICE Permit #: edmondsremodel@comcPlan #: Trade: Insulation ast.net Work Area Product Notes Ceiling Area Vaulted --------------------- 5" Foamfill (Wood) ___ R 30 VALUE _____-__ Exterior Walls - 3.5" Foamfill (Wood) ----------------------- R21 -VALUE Exterior Walls __ Unfaced _HighPerformance,R_21,15-- Air Infiltration Foam Air Infiltration Caulk Air Infiltration Backer Rod Base Price: $30465.00 Notes: **SALES TAX IS NOT INCLUDED** UPON SIGNING THIS WORK AGREEMENT YOU ARE RESPONSIBLE FOR VERIFYING THE ACCURACY OF THIS ORDER te o t = Page 1 of 3 ' Gale Contractor Services MASCO Lic# P.O. Box 3128, Arlington, WA, 98223 GALE Contractor QServices Contractor Tel: (360) 659-7674, Fax: (360) 403-1785 Services WO AGREEMENT ESTIMATE REVISION to 52J7458-1 TO: EDMONDS REMODEL RE: NEW OFFICE Address: PO BOX 1692 Address: 658 MAPLE ST DMONDS A 98020 EDMNDS, WA 98020 Super: GREG Date: 08/29/2009 Expiration Date: 09/28/2009 Tel: (206)227-1029 Estimator: Leland Gamache �III�I� H�INI��l�ul�ill Fax: P 52,174581-2 it Subject to the terms and conditions stated in this agreement, Contractor is willing to furnish to you all material and labor required for the Scope of Work described below: Draft stop, fire block, fire stop (UBC 708.2.1 et seq., formerly 2516(f), or locally adopted equivalent), and fire rated caulking are not included within Contractor's Work unless specifically listed below. CELLULOSE NOTICE: If cellulose is to be applied with a wet spray application, you must allow adequate time for it to cure and dry before installing drywall or other materials. The adequate time required varies depending upon climate, altitude, and weather. Do not install vapor barriers, vapor retards, drywall, or other interior finish until the material has dried to less than 20% moisture content. Time to cure will vary based on climate and weather. Be sure to schedule your trades accordingly. Model Name: OFFICE Permit #: edmondsremodel@comcPlan #: Trade: Insulation ast.net Work Area Product Notes Ceiling Area Vaulted --------------------- 5" Foamfill (Wood) ___ R 30 VALUE _____-__ Exterior Walls - 3.5" Foamfill (Wood) ----------------------- R21 -VALUE Exterior Walls __ Unfaced _HighPerformance,R_21,15-- Air Infiltration Foam Air Infiltration Caulk Air Infiltration Backer Rod Base Price: $30465.00 Notes: **SALES TAX IS NOT INCLUDED** UPON SIGNING THIS WORK AGREEMENT YOU ARE RESPONSIBLE FOR VERIFYING THE ACCURACY OF THIS ORDER te o t = Page 1 of 3 MASCO Gale Contractor Services GALE ALE Contractor Contractor P.O. Box 3128, Arlington, WA, 98223 Services Services Tel: (360) 659-7674, Fax: (360) 403-1785 WORK AGREEMENT STIMATE REVISION to 52J7458-1 TO: EDMONDS REMODEL RE: NEW OFFICE Address: PO BOX 1692 Address: 658 MAPLE ST EDMONDS WA 98020 EDMONDS WA 98020 Super: GREG Date: 08/29/2009 Expiration Date: 09/28/2009 Tet: (206)227-1029 Estimator: Leland Gamache 01111111111111111 P 52J7458-2 p Fax: NOTE: this agreement consists of multiple pages. If you do not receive the number of pages noted below, please contact Contractor directly at the telephone number stated above. TERMS OF PAYMENT: Payment in full due as stated on invoice regardless of any payment arrangements you have with third parties. ACCEPTANCE: Contractor may change and/or withdraw this agreement if Contractor does not receive your signed acceptance within 10 business days after the date listed above. PRICING: The prices stated in the Scope of Work above will remain firm for 90 days after the bate stated above. If performance of this agreement extends beyond this 90 day period, you agree to pay Contractor's then current pricing ("Price") for any Work performed after that 90 day period. The Prices are based only on the terms and conditions expressly stated in this agreement. The Prices exclude any and all terms and conditions not expressly stated herein, including, without limitation, any obligation by Contractor to name you or any third party as an additional insured on its insurance policy; to provide per project aggregate insurance coverage for the Work; to participate in any owner controlled, wrap, or similar insurance program; to indemnify or defend you or any third -party from any claims, actions and/or lawsuits of any kind or nature whatsoever except to the limited extent state in Section 18 of this agreement. Any terms or conditions required by you by contract or otherwise in addition to or inconsistent with those expressly stated in this agreement will result in additional charges and/or higher prices. Any additional work performed is subject to Contractor's then current pricing (unless Contractor otherwise agrees in writing) and to this agreement. CUSTOMER: By: SIGNATURE TITLE Company Name CONTRACTOR: By: SIGNATURE TITLE Date Leland Gamache THE INFORMATION CONTAINED IN THIS AGREEMENT IS CONFIDENTIAL. NEITHER THIS,AGREEMENT NOR ITS TERMS MAY BE DISCLOSED TO THIRD PARTIES. f Page 2 of lw_ ;t�pa 1, ACCEPTANCE. This agreement is expressly limited to and made conditional upon your acceptance of its terms and conditions. Any of your terms and conditions which are in addition to or different from those contained herein which are not separately agreed to in writing (except additional provisions specifying quantity, description of the products or work ordered and shipping instructions) are deemed material and are hereby objected to and rejected. You waive your objection to any terms and conditions contaihed herein if Contractor does not receive written notice of your objection within ten business days of the date of this agreement. You will in any event be deemed to have assented to all terms and conditions contained herein if any part of the products or work described herein are provided or performed Please note particularly the Liuuted Warranty, Limitation of Remedies and Limitations on Actions and Liability provisions set forth below. You acknowledge that the prices stated are based on the enforceability of these terms and conditions, and on the Limited Warranty, Limitation of Remedies and Limitation of Actions and Liability provisions below, that the price would be substantially higher if Contractor could not limit its liability as herein provided, and that you accept these provisions in exchange for such lower prices. 2. LIMITED WARRANTY. All work performed by Contractor is warranted to be free from defects in material and workmanship for one year from the date of completion of the installation subject to the terms below, Contractor makes no warranties regarding products sold but assigns to you any manufacturer warranties relating to the products. EXPRESS WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES, WHETHER EXPRESSED, IMPLIED OR STATUTORY, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This limited warranty does not cover damages relating to (a) accident, misuse, abuse, neglect, or normal wear and tear: (b) failure to use or maintain the product in accordance with manufacturces instructions; and (c) alteration, repair or attempted repair by anyone other than Contractor or its authorized representative. You shall be solely responsible for the correctness of the plans and specifications and shalt release and hold harmless Contractor from any damages resulting from improper, inadequate or vague information supplied by you. Contractor does not take on any obligation to inspect or evaluate the work of other parties in any manner or aspect This warranty is not transferable. 3. INSURANCE. Contractor shall maintain workers' compensation (employer liability), as required by law, and $1,000,000 in general liability insurance while performing the work. Contractor reserves the right to be self insured to the extent allowed by applicable law. Contractor does not agree to name any other persons or entities as additional insureds. 4. LIMB TATION OF REMEDIES. Your sole and exclusive remedy against Contractor for any and all claims for damages arising out of or alleged to have arisen out ofthe Work will be limited to the repair or replacement by Contractor, at Contractor's option, of any nonconforming work or to the issuance of a credit for such nonconforming work in accordance with these terms and conditions provided Contractor is given a reasonable opportunity to inspect the work and confirms such nonconformity. This exclusive remedy shall not be deemed to have failed of its essential purpose so long as Contractor is willing and able to repair or replace the nonconforming work and, in any event, Contractor's maximum liability for any damages shall be limited to the total amount paid to Contractor for the Work under this agreement. This Limitation of Remedies clause shall apply to the parties to this agreement as well as to the current owner(s) of the project and its/their respective successors and assigns. If you receive a claim for damages by any owner arising out of or alleged to have arisen out of the Work, you agree to give written notice to Contractor of the claim and provide Contractor an opportunity to inspect the alleged damages within 30 days after Contractor's receipt of the notice. If you fail to give the required notice and/or fail to allow Contractor an opportunity to inspect the alleged damages within 30 days, you hereby waive any and all rights for damages and/or correction of work against Contractor. This Limitations of Remedies may be plead as a complete bar to any action in violation of this clause. 5, LIMITATIONS ON ACTIONS AND LIABILITY. All claims and/or lawsuits including but not limited to claims or lawsuits for indemnity and/or contribution against Contractor arising under this agreement must be made within 13 months from the date of completion of the installation. CONTRACTOR WILL NOT BE LIABLE FOR ANY LOSES, DAMAGE OR INJURY RESULTING FROM DELAY IN DELIVERY OF THE PRODUCTS OR FOR ANY FAILURE TO PERFORM THAT IS DUE TO CIRCUMSTANCES BEYOND ITS CONTROL.CONTRACTOR DISCLAIMS ALL LIABILITY FOR ANY AND ALL DAMAGE WHICH MIGHT BE SUSTAINED BY ANY PERSON WHO MAY BE ALLERGIC TO OR AFFECTED BY THE EMANATION OF PARTICLES FROM CERTAIN TYPES OF INSULATION. THE MAXIMUM LIABILITY, IF ANY, OF CONTRACTOR FOR ALL DAMAGES, INCLUDING WITHOUT LIMITATION CONTRACT DAMAGES AND DAMAGES FOR INJURIES TO PERSONS OR PROPERTY, WHETHER ARISING FROM CONTRACTOR'S BREACH OF THIS AGREEMENT,BREACH OF WARRAN'T'Y, NEGLIGENCE, STRICT LIABILITY OR OTHER TORT WITH RESPECT TO THE PRODUCTS, OR ANY SERVICES IN CONNECTION WITH THE PRODUCTS, IS LIMITED TO AN AMOUNT NOT TO EXCEED THE CONTRACT PRICE. IN NO EVENT SHALL CONTRACTOR BE LIA LE FOR ANY INCIDENTAL, CONSEQUENTIAL, LIQUIDATED, OR SPECIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES AND PROFITS, ATTORNEYS FEES AND/OR COSTS EVEN iF IT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, THE RIGHT TO RECOVER DAMAGES WITHIN THE LIMITATIONS SPECIFIED IS YOUR EXCLUSIVE REMEDY IN THE EVENT THAT ANV OTHER CONTRACTUAL ACTUAL RF.MF.DV FAIR OF ITS FRSF.NTTAT, PITRPO.'F_ 6. PRICES, TERMS AND SITIPMENT. No cash discounts, back charges, set offs or counterclaims are allowed unless specified by Contractor. In addition to the prices specified, you agree to pay any federal, state or local excise, use, occupational, or similar rax now in force or to be enacted in the fiuture, assessed against Contractor or you by reason of this trangnction. No retention is nermitted unlesq rontractm agrees otherwise in writing. Any pact due payment will be. at CnntractM's option. subject to interest at 1 q% per month 0 Ru/ per nnnnml to the erten} (,ermined ba I,- Vnn agree to receive (or rermit ('ontmctnr to reeeive) near the wort- cite. any ruateriak needed to complete the ?Pnrh Pna a^rcc to protect such materials &oro damage or loss and provide Conlraolor, free of charge, with reasonable use of light, heat, water, power, storage apace mrd use of available elevators and hoists as needed Title to all materials under this agreement shall not transfer to you until Contractor receives payment in full. Contractor may charge you a fee and its actual expenses if the job site is not ready for work on the date you specify. . T-nTtCT' \T. �JT?T TT. t}` 1f1;,df,-o.f air u"d h� fiahh Cc am ,ref n Gtirui1r17"nd( in 1,.r(iodhcr" i— ru "fiof� ill 1';" f. �:'t"eJin r6� -�lm n,r r any contingency beyond the control either of Contractor or of suppliers to the Contractor. Such contingencies include but are not limited to failure or delay in transportation, acts of any government or any agency or subdivision thereof, judicial action, labor disputes, fire, accident, acts of nature, severe weather, product allocation or shortages, labor shortages, fuel shortages, mw material shnnnpeq. mnchinery or technical failure. or work that cannot he completed because of another contractor covering the pertinent portion nfthe building if any contingency nrrmc. C`nntr.•r;Ynr mac• -rl1n,^a},^ rr d r.^tine dct^-.^rig^ Ind f c. -r1^ amen- i}c-•,c}nm^rc nr cnhcti}nM .,,h<t-n*n11c• aim%tr mntcwaie %-r it- -I,- rlic;r-tinn.'4—f f— a^i-rr ^n 8. CONFIDENTIALITY. If you visit Contractors premises or you otherwise receive any proprietary or confidential information from Contractor, you shall retain such information as confidential and not use or disclose it to any third party without Contractor's written consent g. CREDIT APPROVAT„ Shipment and delivery of goods and performance of work shall at all times he subject to the approval of Contractor's credit department and Contractor may at anv time decline to make any abhorrent or delivery or perform any i-+ excert noon receipt ofra,."ent or I" terms aad conditions nr aecnrih, satist°ctnn, tp rontnctor. Rv sipnine this agreement, you authorize Contractor to check your credit and references. 10. CANCELLATION. This agreement, or any part of it, may only be cancelled with Contractor's written approval. In the event of cancellation of this agreement, or any part hereof; you shall pay: (a) the contract price of allcompleted items; (b) that portion of the contract price that is equal to the degree of completion of products or work in process, effective on the date Contractor receives notice of cancellation: (c) the cost of any materials and supplies which Contractor shall have purchased to perform and which cannot be readily resoldor used fbr other of similar purposes; (d) a restocking fee; and (e) any expenses incurred by Contractor (including legal fees and judgments) as a result of the cancellation of subcontracts or purchases related to this agreement. 11, DEFAULT. You may terminate this agreement for Contractor's default, wholly or in part, by giving Contractor written notice of termination as follows. You may give a written notice of termination only if Contractor has received a written notice from you specifying such default, the default is not excusable under any provision hereof; and the default has not been remedied within thirty tau) days ter such longer period as may be reasonable under rhe circumstances) atter l,onuactor's receipt of the nonce of demult. llehvery of noncommining products or work by Contractor shall give you the rights set forth in paragraph 4 hereof but shall not be deemed a default for purposes of termination. In the event of termination for default, you shall be relieved of the obligation to pay for work not performed by Contractor prior to the effective date of such termination. A default on Contractor's part shall not subject Contractor to liability, throughayment by Contractor, set off or otherwise, for any other damages, whether direct, consequential or incidental, and whether sought under theories of contract or tort. 12, ASSIGNMENT. You may not assign this agreement or any claim against Contractor relating to this agreement 13. GOVERNING LAW. This agreement shall be constru4 interpreted and the rights of the parties determined in accordance with the laws of the State of Contractor's address first listed on the front of this agreement. 14. DISPUTES AND MANDATORY MEDIATION. In the event that a dispute arises over the reasonableness of or entitlement to fees charged by Contractor, the prevailing party will be entitled to reasonable attorneys fees and costs. in all other disputes of any nature, each party shall pay its own fees and costs. Except as required to protect confidential information and to obtain preliminary injunctive relief to prevent irreparable hams you and the contractor agree that prior to the initiation of any legal action the parties will engage in facilitative mediation of any and all disputes in any way related to this agreement. If the parties cannot agree upon a facilitative mediator within 30 days of when the depute arose, one will be selected pursuant to the Commercial Mediation Rides of the American Arbitration Association. Each party will share equally the fees of the facilitative mediator and costs of the mediation. 15. INSULATION DOES NOT PREVENT FROZEN PIPES. Insulating around water lines in an unconditioned or semi -conditioned area will not prevent pipes from freeing To decream the pnccibility of fr—en pipes, locate any water pirec within a conditioned area. cnch ac internal means rather than external walk. If vol do not locate the pipes within an internal wall, you hold Contractor harmless and release Contractor from any claims relating to frozen or burst pipes. 1r'), SEVERABILITY. If any provision on this agreement is not enforceable, that provision shall be offective only to the extent permitted bylaw and all other provisions of this agreement shall remnin. 1'7FNITMF ACRFFAWNTT. Thio R+jccrrc,^tt.'r1177r-'-rn;l Ml- ':r-7,4 :ban d "rn?rfi-d �h-rdcd--r discharged orally by a writing signed by the party against whom enforcemuent. of any such waiver, change, modification, extension or discharge is sought. The terms and conditions of phis agreement supersede any agreement to which it is attached. 18. LNTEi LN=. Each of the parties to this agrccment agrees to dcf=d and indcal one another from any and all claims, actions and/or lwxsuits caused by the party's negligent acts or iui.,i„n. Tlhi�imrcnmiic:Lm.:an.flh: dfiva(ini�cr.ai.i iiacin.rcdi eulinian,f cif,:�ni„iiic.:ram nano;in in.irinniih ;��i..ni�ni gni: r:,lin(.�ii,rl,ffii.:uiccnirni. i•wlhcnwn:. ilii. indemnity clause and the obligations created herein shall control and take priority over any contrary indemnity agreement entered into subsequent to this agreement unless the subsequent agreement specifically refers to this mdemnrty clause and declares it null and void TM ..._ r �_i.- Page 3of3 ' Insulation alone is not enough. BASF Polyurethane Foam Enterprises LLC offers COMFORT FOAM°, a closed -cell, spray -applied polyurethane foam insulation system that creates a seamless, insulating air barrier to improve the energy efficiency, comfort and durability Of single-family homes. The U.S. Department of Energy (DOE) reports that 40 percent of the energy cost of heating and cooling a building is wasted by uncontrolled air leakage, which also contributes to premature building deterioration, condensation, spalling, ice damming, poor indoor air quality (IAQ) and mold growth. An effective air barrier system substantially reduces both air leakage and the passage of moisture through the building envelope. The COMFORT FOAM system eliminates costly uncontrolled air leakage by contributing to a monolithic, air impermeable building envelope system. Our closed -cell technology is unique in the way that it allows design professionals and building owners to specify a material that is engineered to meet and exceed required performance criteria for every code and climate. The COMFORT FOAM system offers a closed -cell content of greater than 90 percent and meets ASTM 1029/SPFA guidelines. By comparison, open -cell foams used for insulation have approximately 60 percent open -cell content and have far greater air and vapor transmission characteristics. As such, open -cell products only qualify as air barriers as defined in ASTM International E 2178, Standard Test Method for Air Permeance of Building Materials, when applied at maximum thickness - 5.5 inches. COMFORT FOAM uses the versatility of polyurethane chemistry to combine a superior effective R -value (over 6.0* per inch) with seamless, almost -zero air permeability for increased building energy efficiency, durability and occupant comfort, health and safety. Combining air impermeability with high insulation R -value translates to a highly energy efficient home that costs less to own overtime. A residential study by Advanced Certified Thermography shows that COMFORT FOAM installations can help reduce energy costs by as much as 60 percent each year compared with traditional insulation systems. Over 20 years, this can mean as much as $15,000 in savings at today's energy costs. With escalating energy costs, realized savings may be even greater. The COMFORT FOAM system is accepted by all major building codes, including the International Code Council encompassing both commercial and residential applications. Accredited third -party testing of the COMFORT FOAM system using ASTM E283-(04)1 proves that COMFORT FOAM insulation is a Building Code -recognized air barrier material. New homes built with COMFORT FOAM technology may be eligible to obtain energy efficiency incentives under the Federal Energy Policy Act of 2005. Under the Act, builders of site -built or manufactured homes are eligible for a rebate of $2,000 for energy efficiency measures that achieve 50 percent savings over the 2004 IECC Standard. Envelope improvements to existing homes that meet the 20031ECC and supplements are eligible for a rebate equal to 10 percent of the cost of improvements, up to $500. The U.S. Department of Energy offers financial assistance opportunities through the Office of Energy Efficiency and Renewable Energy (EERE) and other incentives are available through more than 60 ENERGY STAR® incentive programs. In addition, special mortgages for energy efficient homes are offered by more than 40 different agencies across the United States. Testing conducted by the National Association of Home Builders (NAHB) Research Center shows SPF insulation between wood- and steel -stud wall panels increased rack and shear two to three times over standard stick -built components and glass -fiber insulation when sprayed onto gypsum wallboard and vinyl siding, and increased racking strength by 50 percent when sprayed onto oriented strandboard (OSB).2 Results from testing conducted by the National Research Council (NRC) of the Canadian Construction Materials Centre (CCMC) show SPF air barriers offering long-term durability greater than or equal to the building's expected life span. The COMFORT FOAM insulating air barrier is a formaldehyde -free formula that emits no volatile organiccompounds'(VOCs) and uses ZONE30 zero ozone depleting blowing agent technology. By eliminating condensing surfaces and offering no food source, it helps to resist mold, mildew and pest infestations, contributing to a safer, healthier indoor environment. The R -value of this insulation. "R" means resistance to heat flow. The higher the R -value, the greater the insulating power. Compare insulation R -values before you buy. There are other factors to consider. The amount of insulation will depend upon the climate, the type and size of your house, and the fuel use patterns and family size. If you buy too much insulation it will cost you more than what you will save on fuel. To achieve proper R -values, it is essential that this insulation be installed properly. This fact sheet complies with the Federal Trade Commission labeling and advertising of home insulation rules and regulations, Federal Register, 16 CFR Part 460 Labeling and Advertising of Home Insulation: Trade Regulation Rule; Final Rule, Tuesday, May 31, 2005. Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls and Doors Under Specified Pressure Differences Across the Specimen. Canadian Construction Materials Centre (CCMC), Evaluation Report 12932-R, National Research Council (NRC) of Canada. COMFORT FOAMS is a registered trademark of BASF Polyurethane Foam Enterprises LLC. ZONE31 is a trademark of BASF Corporation. 2008 BASF Polyurelhane Foam Enterprises LLC 44qc.1.$C)v CITY OF EDMOND 121 STH AVM)E NORTH • EDMONDS, WA 9502.0 • (425) 771-0220 - FAX (425) 771.0221 Website: www,ci.odmonds,wA.uG 1 DEVELOPMENT SERVICES bEPARTMENT Planning • Building o Engineering February 20, 2009 Sandra and Isco Allbery 900 Walnut Street &linonds, WA 98020 R.6- 'Use of Comfort. Polon 178 insulation System at: 900 Walnut Sheet, Edmonds Dear Mr. and Mrs. Allbory: GARY HAAKENSON MAYOR The: Office of the City Building Official is ili receipt of your request for Alternate Materials Method of Construction, .Design ur^ 1nsu1aHnq,S,ystems as set forth in WSEC: 103 to use Comfort Foam 178 Insulation System for roof insulation. Section 5011,4.3 of the 2006 Washington State Energy Code; requires ventilation between the top of the insulation and roof deck. Comfort Foarn 178 System is installed directly to the underside of the roof deck without this air space. The 2004 Supplement to the international Residential Code and proposed Washington State Energy Code Amendments support the installation of air impermeable insulation to be applied directly to the underside of the roof clock. Comfort Foam 178 System is air impenneable (ASTM 6283 with less than, 0.02 L/S-m2). Product has also been evaluated by IC:C in report: ESR -2642. After review of all of the information provided, it is my determination as Building Official for the City of Edmonds that the use of Comfort Foam 178 Insulation System is approved as an Alternate Materials Methods of Insulating Systems for roof insulc30011 under the provisions of WSEC 103 at 900 Walnut 8trcct,'Edinonds with the following conditions: ® They Product must: fie i119talle'd in accorddilce With the manufacturer's installatic}r► instructions. • The unvented attic spaoc is completely contained within the building thermal envelope. v No interior vapor retarders are installed on the ceiling side of the unvented atl:ic assembly, Sincerely, Ann Bi,illia, 0130' Building O'flicial. 0 Incorporated August 11, 1890 ESR -2642 REPORT TM Issued April 1, 2008 ,� This report is subject to re-examination in one year. ICC Evaluation Service, Inc.I Business/Regional Office ■ 5360 Workman Mill Road, Whittier, California 90601 ■ (562) 699-0543 Regional Office m 900 Montclair Road, Suite A, Birmingham, Alabama 35213 m (205) 599-9800 W W W.ICC-es.orq Regional Office ■ 4051 West Flossmoor Road, Country Club Hills, Illinois 60478 ■ (708) 799-2305 DIVISION: 07—THERMAL AND MOISTURE PROTECTION Section: 07210—Building Insulation REPORT HOLDER: BASF POLYURETHANE FOAM ENTERPRISES, LLC 1703 CROSSPOINT AVENUE HOUSTON, TEXAS 77054 (713) 383-4520 www.basf-pfe.com EVALUATION SUBJECT: BASF POLYURETHANE FOAM ENTERPRISES SPRAY - APPLIED INSULATIONS: SPRAYTITE 158, SPRAYTITE 178, SPRAYTITE 81205, SPRAYTITE 81206, COMFORT FOAM 158, COMFORT FOAM 178 AND WALLTITE 1.0 EVALUATION SCOPE Compliance with the following codes: ■ 2006 International Building Code® (IBC) ■ 2006 International Residential Code® (IRC) ■ 2006 International Lnergy Conservation Code® (IECC) ■ Legacy Codes (see Section 8) Properties evaluated: ® Physical properties ■ Surface burning characteristics ■ Water vapor transmission ■ Attic and crawl space installation ■ Fire -resistance -rated construction 2.0 USES SPRAYTITE 158, SPRAYTITE 178, SPRAYTITE 81205, SPRAYTITE 81206, COMFORT FOAM 158, COMFORT FOAM 178 and WALLTITE spray- applied insulations are used as thermal insulating material in cavities of wall, floor and ceiling assemblies, and in attic and crawl space applications as described in Section 4.4. SPRAYTITE 158, SPRAYTITE 81205 and COMFORT FOAM 158 may also be used in fire - resistance -rated construction as described in Section 4.5. ranging from 1.75 to 2.25 pcf (28 to 36 kg/m3). SPRAYTITE 158, SPRAYTITE 178, COMFORT FOAM 158 and COMFORT FOAM 178 use the same A component, designated as FE800A. SPRAYTITE 81205, SPRAYTITE 81206 and WALLTITE all use an A component designated as ELASTOSPRAY 8000A. Each insulation uses a different proprietary blend for the B component, as defined in the quality documentation. The insulation components have a shelf life of three months when stored at temperatures between 50°F (10°C) and 80°F (27°C) before installation. 3.2 Surface -burning Characteristics: The insulations have a flame -spread index of 25 or less and a smoke -developed index of 450 or less when tested in accordance with ASTM E 84 at a maximum thickness of 4 inches (114 mm). Thicknesses of up to 8 inches (203 mm) for wall cavities and 12 inches (305 mm) for ceiling cavities are recognized, based on testing in accordance with NFPA 286. 3.3 Thermal Transmission: SPRAYTITE 158, SPRAYTITE 81205 and COMFORT FOAM 158 have a thermal resistance (R -value) of 5.6 ft2hr°F/Btu, for a 1 -inch thickness at a mean temperature of 75°F (24°C). SPRAYTITE 178, SPRAYTITE 81206, COMFORT FOAM 178 and WALLTITE have a thermal resistance (R -value) of 5.1 ft2hr°F/Btu, for a 1 -inch thickness at a mean temperature of 75°F (24°C). 3.4 Vapor Retarder: SPRAYTITE 158, SPRAYTITE 81205 and COMFORT FOAM 158, at a minimum thickness of 3 inches (76 mm); and SPRAYTITE 178, SPRAYTITE 81206, COMFORT FOAM 178 and WALLTITE at a minimum thickness of 2 inches (51 mm), have a permeance of 1 perm (57 x 10-" kg /(m2sPa)] or less, in accordance with ASTM E 96, and may be used where a vapor retarder is required by the applicable code. 3.5 ELASTOCOAT 1500 -Ignition Barrier: ELASTOCOAT 1500 Ignition Barrier coating is supplied by BASF Polyurethane Foam Enterprises, LLC. The coating is available in both 5- and 55 -gallon containers (18.9 and 208 L) and has a shelf life of six months when stored in a factory - sealed container at temperatures between 50°F (10°C) and 80°F (26.7°C). 3.0 DESCRIPTION 4.0. INSTALLATION 3.1 General: 4A General: SPRAYTITE 158, SPRAYTITE 178, SPRAYTITE 81205, SPRAYTITE 81206, COMFORT FOAM 158, COMFORT FOAM 178 and WALLTITE are two -component, closed -cell, semirigid foam plastic insulations. The insulation is produced in the field by combining an isocyanate component A with a resin component B, resulting in products with a density The BASF Polyurethane Foam Enterprises spray -applied insulations must be installed in accordance with the manufacturer's published installation instructions, the applicable code and this report. The manufacturer's published installation instructions must be available on the jobsite at all times during installation. REPORTS— are ,at to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject ofthe report ora reconmiendation for its use. There is no warranty by ICC Evaluation Service, Inc., express or implied, as to anyfrnding or other matter in this report, or as to any product covered by the report. Copyright © 2008 AN31,kas&aaaP-9— ROOMCfAiFPAMW Page 1 of 3 Page 2 of 3 ESR -2642 4.2 Application: The insulation is spray -applied at the jobsite using a volumetric positive displacement pump as recommended in the manufacturer's published installation instructions. The insulation is applied in passes having a minimum thickness of '/2 inch and a maximum thickness of 2 inches (51 mm) per pass, and must not exceed a total thickness of 8 inches (203 mm) in wall cavities and 12 inches (305 mm) in ceiling cavities. The insulation passes must be allowed to fully expand and be cured for a minimum of 15 minutes prior to application of an additional pass. The insulation must not be used in areas that have a maximum service temperature greater than 180°F (82°C). The foam plastic insulation must not be used in electrical outlet or junction boxes or in contact with rain, water, or soil. The substrate must be free of moisture, frost or ice, loose scales, rust, oil, and grease. The insulation must be protected from the weather during and after application. 4.3 Thermal Barrier: The spray -applied insulations must be separated from the interior of the building by an approved thermal barrier of 0.5 - inch (12.7 mm) gypsum wallboard or an equivalent 15 -minute thermal barrier complying with IBC Section 2603.4 or IRC Section R314.4, as applicable, except where installation is in an attic or crawl space as described in Section 4.4.. 4.4 Attics and Crawl Spaces: 4.4.1 Application with a Prescriptive Ignition Barrier: When the spray -applied insulations are installed within attics or crawl spaces where entry is made only for service of utilities, an ignition barrier must be installed in accordance with IBC Section 2603.4.1.6 or IRC Sections R314.5.3 and R314.5.4 , as applicable. The ignition barrier must be consistent with the requirements for the type of construction required by the applicable code, and must be installed in a manner so that the foam plastic insulation is not exposed. 4.4.2 Application without a Prescriptive Ignition Barrier: In attics, SPRAYTITE 178, SPRAYTITE 81206, COMFORT FOAM 178 or WALLTITE may be applied to walls and to the underside of roof sheathing or roof rafters; and in crawl spaces, to walls and to the underside of wood floors, as described in this section. The thickness of the foam plastic applied to the underside of the top of the space must not exceed 7 inches (178 mm). The thickness of the foam plastic applied to the vertical surfaces must not exceed 3 inches (76 mm). The foam plastic must be covered with ELASTOCOAT 1500 Ignition Barrier, as described in Section 3.5. Surfaces to be coated must be dry, clean, and free of dirt, loose debris and any other substances that could interfere with adhesion of the coating. ELASTOCOAT 1500 Ignition Barrier is applied with a medium-size nap roller, soft brush or conventional airless spray equipment at a minimum of 1 gallon (3.75 L) per. 100 ft2, (9.29 m2), resulting in a minimum dry film thickness of: 18 mils (0.46 mm). The coating must be applied when ambient and substrate temperatures are within a range of 50°F (10°C) to 90°F (32°C) and requires a 24-hour curing time. SPRAYTITE 178, SPRAYTITE 81206, COMFORT FOAM 178 or WALLTITE covered with ELASTOCOAT 1500 Ignition Barrier may be installed in accordance with this section only under the following conditions: a Entry to the attic or crawl space is limited to service of utilities and there are no heat -producing appliances. ® There are no interconnected basement or service areas. ® Air in the attic or crawl space is not circulated to other parts of the building. ® . Ventilation of the attic or crawl space is provided in accordance with the applicable code. 4.5 Fire Resistance: SPRAYTITE 158, SPRAYTITE 81205 or COMFORT FOAM 158 may be installed on interior load-bearing two-hour fire - resistance -rated walls, provided the system is installed in accordance with the following: 4.5.1 Wood Framing: Two rows on separate plates, 3 inches (76 mm) apart, of minimum 2 -by -4 wood studs (No. 2 Douglas fir) spaced a maximum of 16 inches (406 mm) on center. 4.5.2 Wall Finish: Base layer of %-thick (15.9 mm), Type X gypsum wallboard is applied horizontally and fastened to each outer side of a double row of studs with 6d by 1'/, -inch -long (48 mm) coated nails, spaced 2 feet (610 mm) on center. Face layer of 5/flinch-thick (15.9 mm), Type X gypsum board is applied horizontally and fastened to each outer side of studs over the base layer with 8d by 23/8 inch -long (60 mm) coated nails, spaced 8 inches (203 mm) on centers. Gypsum wallboard joints must be staggered 24 inches (610 mm) between layers and on opposite sides of the wall. 4.5.3 Insulation: SPRAYTITE 158, SPRAYTITE 81205 or COMFORT FOAM 158 is applied in the stud cavities of both rows at a thickness of 3 inches (76 mm). 5.0 CONDITIONS OF USE The BASF Polyurethane Foam Enterprises spray -applied insulations described in this report complywith, or are suitable alternatives to what is specified in, those codes listed in Section 1.0 of this report, subject to the following conditions: 5.1 The spray -applied insulations and the ELASTOCOAT 1500 must be installed in accordance with the manufacturer's published installation instructions, this evaluation report and the applicable code. The instructions within this report govern if there are any conflicts between the manufacturer's published installation instructions and this report. 5.2 The spray -applied insulations must be separated from the interior of the building by an approved 15 -minute thermal barrier, as described in Section 4.3, except where installation is in an attic or crawl space as described in Section 4.4. 5.3 The spray -applied insulations must not exceed the thicknesses noted in Sections 3.2 and 4.4.2. 5.4 The spray -applied insulations must be protected from the weather -during and after application. 5.5 The spray -applied insulations must be applied by installers certified by BASF Polyurethane Foam Enterprises. 5.6 The spray -applied insulations may be used in any buildings under the IRC, within the parameters set forth in IRC Section R314. The spray -applied irisulations were evaluated''for use In Type V -B construction under the ' IBC. Additionally, SPRAYTITE 158, SPRAYTITE 81205 or COMFORT FOAM 158 may be used where a two- hour fire -resistance -rated wall is required, provided the system is installed as described in Section 4.5. 5.7 When the spray -applied insulations are installed in buildings of wood construction, the installation must not be on the exterior of foundation walls or below floor slabs on the ground or in contact with the ground. The insulation must have a clearance above grade and exposed earth of 6 inches (52 mm) or greater. 5.8 Insulation installers must provide certification and labeling complying with IRC Section N1101.4 or IECC Section 102.1.1, as applicable. Page 3 of 3 ESR -2642 5.9 The polyurethane foam plastic insulation components are produced in Houston, Texas, and Minneapolis, Minnesota, under a quality control program with inspections by Underwriters Laboratories Inc. (AA -668). 6.0 EVIDENCE SUBMITTED 6.1 Data in accordance with the ICC -ES Acceptance Criteria for Spray -applied Foam Plastic Insulation (AC377), dated October 2007. 6.2 Data in accordance with ASTM E 119. 7.0 IDENTIFICATION Each container of components A and B of the polyurethane foam plastic insulation bears a label with the BASF Polyurethane Foam Enterprises, LLC, name and address, the product name, the product type (A or B component), density, the flame- spread and smoke -developed indices, the evaluation report number (ESR -2642), the shelf life and the date of manufacture. The containers also bear the name of the inspection agency (Underwriters Laboratories Inc.). Each pail of Elastocoat 1500 Ignition Barrier coating is labeled with the BASF Polyurethane Foam Enterprises, LLC, report holder's name and the product name (Elastocoat 1500 Ignition Barrier). 8.0 LEGACY CODES 8.1 Evaluation Scope: In addition to the codes referenced in Section 1.0, the products in this report were evaluated for compliance with the requirements of the following codes: ® BOCA® National Building Code/1999 (BNBC) ® 1999 Standard Building Code° (SBC) ® 1997 Uniform Building CodeT"' (UBC) 8.2 Uses: See Section 2.0. 8.3 Description: 8.3.1 General: See Section 3.1 8.3.2 Surface Burning Characteristics: 8.3.2.1 BNBC and SBC: See Section 3.2. 8.3.2.2 UBC: The insulations have a flame -spread index of less than 25 and a smoke -developed index of less than 450 when tested in accordance with UBC Standard 8-1 to a maximum thickness of 4 inches (114 mm). Thicknesses of up to 8 inches (203 mm) for wall cavities and 12 inches (305_mm) for ceiling cavities are recognized, based on testing in accordance with NFPA 286. 8.3.3 Thermal Transmission: See Section 3.3. 8.3.4 Vapor Retarder: See Section 3.4. 8.3.5 Elastocoat 1500 Ignition Barrier: See Section 3.5. 8.4 Installation: 8.4.1 General: See Section 4.1. 8.4.2 Application: See Section 4.2. 8.4.3 Thermal Barrier: The spray -applied insulations must be separated from the interior of the building by an approved thermal barrier of 0.5 -inch (12.7 mm) gypsum wallboard or an equivalent 15 -minute thermal barrier complying with BNBC Section 1503.4, SBC Section 2603.5 or UBC Section 2603.4, as applicable, except where installation is in an attic or crawl space as described in Section 3.4. 8.4.4 Attics and Crawl Spaces: 8.4.4.1 Application with a Prescriptive Ignition Barrier: When the spray- applied insulations are installed within attics or crawl spaces where entry is made only for service of utilities, an ignition barrier must be installed in accordance with BNBC Section 2603.4.1.4, SBC Section 2603.5.1.6 or UBC Section 2602.4, as applicable. The ignition barrier must be consistent with the requirements for the type of construction required by the applicable code, and must be installed in a manner so that the foam plastic insulation is not exposed. 8.4.4.2 Application without a Prescriptive Ignition Barrier: See Section 4.4.2. 8.4.5 Fire Resistance: See Section 4.5. 8.5 Conditions of Use: The BASF Polyurethane Foam Enterprises spray -applied insulations described in this report comply with, or are suitable alternatives to what is specified in, those codes listed in Section 8.0 of this report, subject to the following conditions: 8.5.1 See Section 5.1. 8.5.2 The spray -applied insulations must be separated from the interior of the building by an approved 15 -minute thermal barrier, as described in Section 8.4.3, except where installation is in an attic or crawl space as described in Section 8.4.4. 8.5.3 See Section 5.3. 8.5.4 See Section 5.4. 8.5.5 See Section 5.5. 8.5.6 The spray -applied insulations were evaluated for use in Type 5-B construction under the BNBC, Type VI under the SBC and Type V -N underthe UBC. Additionally, SPRAYTITE 158, SPRAYTITE 81205 or COMFORT FOAM 158 may be used where a two-hour fire -resistance -rated wall is required, provided the system is installed as described in Section 8.4.5. 8.5.7 In jurisdictions that have adopted the SBC, and when the spray -applied insulations are installed in buildings of wood construction, the installation must not be on the exterior of foundation walls or below floor slabs on the ground or in contact with the ground. The insulation must have a clearance above grade and exposed earth of 6 inches (52 mm) or greater. -8.5:8 ` "See%Section 5.9. 8.6 Evidence Submitted: See Section 6.0. 8.7 Identification: See Section 7.0. CR -102 (June 2004) PROPOSED RULEMAKIN (Implements RCW 34.05.320) Do NOT use for expedited rule making Agency: State Building Code Council ® Preproposal Statement of Inquiry was filed as WSR 09-05-054 ; or ® Original Notice ❑ Expedited Rule Making --Proposed notice was filed as WSR or ❑ Supplemental Notice to WSR ❑ Proposal is exempt under RCW 34.05.310(4). ❑ Continuance of WSR Title of rule and other identifying information: (Describe Subject) Amendment of WAC 51-11, Washington State Energy Code Hearing location(s): Submit written comments to: Holiday Inn Select Renton Spokane City Council Chambers Name: Peter DeVries, Council Chair One Grady Way S W 808 Spokane Falls Blvd. Address: PO Box 42525 Renton, WA Spokane, WA Olympia WA 98504-2525 Date: September 29, 2009 Date: October 5, 2009 e-mail sbccp_commerce.wa.gov Time: 10:00 a.m. Time: 9:00 a.m. fax (360)586-9383 by (date) October 5, 2009 Assistance for persons with disabilities: Contact Sue Mathers by September 15, 2009 Date of intended adoption: November 12, 2009 (Note: This is NOT the effective date) TTY (360) 586 0772 or (360) 725-2966 Purpose of the proposal and its anticipated effects, including any changes in existing rules: The proposed rules amend the Washington State Energy Code. Please see page 3 for summary of proposed changes. Reasons supporting proposal: RCW 19.27A. 025 and RCW 19.27A. 045 Statutory authority for adoption: RCW 19.27A.025, 19.27A.045 Statute being implemented: RCW 19.27, 19.27A and 34.05 Is rule necessary because of a: CODE REVISER USE ONLY Federal Law? F1 Yes ® No Federal Court Decision? ❑ Yes ® No OFFICE OF THE CODE REVISER State Court Decision? ❑ Yes ® No STATE OF WASHINGTON If yes, CITATION: FILED DATE: August 19, 2009 TIME: 11:17 AM DATE August 1, 2009 ttrSR -�� 136 Y # NAME (type or print) Peter DeVries SIGNATURE r /. 21 /j TITLE Council Chair the type and efficiency of heating, cooling, and service water heating equipment, duct leakage rates including test conditions as specified in Section 503.10.2, and air leakage results if a blower door test was conducted. AMENDATORY SECTION (Amending WSR 07-01-089, filed 12/19/06, effective 7/1/07) WAC 51-11-0201 Scope. The following definitions shall apply to chapters 1 through 20. 201.1 Application of Terms: For the purposes of this Code, certain abbreviations, terms, phrases, words and their derivatives, shall be as set forth in this chapter. Where terms are not defined, they shall have their ordinary accepted meanings within the context with which they are used. In the event there is a question about the definition of a term, the definitions for terms in the codes enumerated in RCW 19.27.031 and the edition of Webster's dictionary referenced therein shall be considered as the sources for providing ordinarily accepted meanings. Addition: See the Washington State Building Code. Advanced framed ceiling: Advanced framing assumes full and even depth of insulation extending to the outside edge of exterior walls. (See Standard Framing and Section 1007.2 of this Code.) Advanced framed walls: Studs framed on twenty-four inch centers with double top plate and single bottom plate. Corners use two studs or other means of fully insulating corners, and one stud is used to support each header. Headers consist of double 2X material with R-10 insulation between the header and exterior sheathing. Interior partition wall/exterior wall intersections are fully insulated in the exterior wall. (See Standard Framing and Section 1005.2 of this Code.) AFUE. Annual fuel utilization efficiency: Unlike steady state conditions, this rating is based on average usage including on and off cycling as set out in the standardized Department of Energy Test Procedures. Air barrier: Material(s) assembled and joined together to provide a barrier to air leakage through the building envelope. An air barrier may be a single material or a combination of materials. Air conditioning, comfort: The process of treating air to control simultaneously its temperature, humidity, cleanliness and distribution to meet requirements of the conditioned space. ((ARI e ) ) Air -impermeable insulation: An insulation having an air permeance equal to or less than 0.02 L/s-m2 at 75 Pa pressure differential tested in accordance with ASTM E2178 or ASTM E283. AHRI: Air -Conditioning, Heating and Refrigeration Institute. Approved: Approval by the Code official as a result of investigation and tests conducted by him or her, or by reason of [ 6 1 OTS -2584.2 (Btu/hr 9 ft2 •°F) . The U. -factor applies to the combined effect of the time rate of heat flows through the various parallel paths, such as glazing, doors and opaque construction areas, comprising the gross area of one or more exterior building components, such as walls, floors or roof/ceiling. Thermostat: An automatic control device actuated by temperature and designed to be responsive to temperature. Total on-site energy input: The combination of all the energy inputs to all elements and accessories as included in the equipment components, including but not limited to, compressor(s), compressor sump heater(s), circulating pump(s), purge devices, fan(s), and the HVAC system component control circuit. Transmission coefficient: The ratio of the solar heat gain through a glazing system to that of an unshaded single pane of double strength window glass under the same set of conditions. Transverse joint: The primary connection between air distribution system fittings. U -factor: (See thermal transmittance.) U -Value: (See U -factor.) Uniform Plumbing Code (UPC): (See Washington State Plumbing Code.) Unitary cooling and heating equipment: One or more factory - made assemblies which include an evaporator or cooling coil, a compressor and condenser combination, and may include a heating function as well. Where such equipment is provided in more than one assembly, the separate assemblies shall be designed to be used together. Unitary heat pump: One or more factory -made assemblies which include an indoor conditioning coil, compressor(s) and outdoor coil or refrigerant -to -water heat exchanger, including means to provide both heating and cooling functions. When such equipment is provided in more than one assembly, the separate assemblies shall be designed to be used together. Vapor retarder: A layer of low moisture transmissivity material (not more than 1.0 perm dry cup) placed over the warm side (in winter) of insulation, -over the exterior of below grade walls, and under floors as ground cover to limit the transport of water and water vapor through exterior walls, ceilings, and floors. Vapor retarding paint, listed for this application, also meets this definition. Vaulted ceilings: All ceilings where enclosed joist or rafter space is formed by ceilings applied directly to the underside of roof joists or rafters. Ventilation: The process of supplying or removing air by natural or mechanical means to or from any space. Such air may or may not have been conditioned. Ventilation air: That portion of supply air which comes from outside (outdoors) plus any recirculated air that has been treated to maintain the desired quality of air within a designated space. Vertical glazing: A glazing surface that has a slope of 60° or greater from the horizontal plane. Wall: That portion of the building envelope, including opaque [ 19 1 OTS -2584.2 area and fenestration, that is vertical or tilted at an angle of 60 decrees from horizontal or greater. This includes above- and below -grade walls, between floor spandrels, peripheral edges of floors, and foundation walls. For the purposes of determining building envelope requirements, the classifications are defined as follows: a. Above -grade wall: A wall that is not a below -grade wall. b. Below -grade wall: That portion of a wall in the building envelope that is entirely below the finish grade and in contact with the ground. c. Mass wall: A wall with a heat capacity exceeding 7 Btu/ft2•°F or 5 Btu/ftz•°F, provided that the wall has a material unit weight not greater than 120 lb/ft3. d. Metal building wall: A wall whose structure consists of metal spanning members supported by steel structural members (i.e., does not include spandrel glass or metal panels in curtain wall systems). e. Steel -framed wall: A wall with a cavity (insulated or, otherwise) whose exterior surfaces are separated by steel framing members (i.e., typical steel stud walls and curtain wall systems). f. Wood -framed and other walls: All other wall types, including wood stud walls. Walls (exterior): Any member or group of members which defines the exterior boundaries or courts of a building and which have a slope of sixty degrees or greater with the horizontal plane, and separates conditioned from unconditioned space. Band joists between floors are to be considered a part of exterior walls. Washington State Building Code: The Washington State Building Code is comprised of the International Building Code; the International Residential Code; the International Mechanical Code; the International Fire Code; the Uniform Plumbing Code; the state regulations for barrier -free facilities, as designated in RCW 19.27.031; the State Energy Code; and any other codes so designated by the Washington state legislature as adopted and amended by the State Building Code Council. Zone: A space or group of spaces within a building with heating and/or cooling requirements sufficiently similar so that comfort conditions can be maintained throughout by a single controlling device. Each dwelling unit in residential buildings shall be considered a single zone. AMENDATORY SECTION (Amending WSR 91-01-112, filed 12/19/90, effective 7/1/91) WAC 51-11-0302 Thermal design parameters. 302.1 Exterior Design Conditions: The heating or cooling [ 20 1 OTS -2584.2 outdoor design temperatures shall be selected from ((8.6 jnerceTrt- -- - :.: State,Teraperatures, Washington - __ a±sc Washington State Energy eode Table 302.2 Interior Design Conditions: 302.2.1 Indoor Design Temperature: Indoor design temperature shall be seventy degrees F for heating and seventy-eight degrees F for cooling. EXCEPTION: Other design temperatures may be used for equipment selection if it results in a lower energy usage. 302.2.2 Humidification: If humidification is provided during heating, it shall be designed for a maximum relative humidity of thirty percent. When comfort air conditioning is provided, the actual design relative humidity within the comfort envelope as defined in Standard RS -4, listed in Chapter 7, shall be selected for minimum total HVAC system energy use. 302.3 Climate Zones: All buildings shall comply with the requirements of the appropriate climate zone as defined herein. ZONE 1: Climate Zone 1 shall include all counties not included in Climate Zone 2. ZONE 2: Climate Zone 2 shall include: Douglas, Ferry, Grant, Kittitas, Lincoln, Okanogan Spokane, Stevens, and Whitman counties. TABLE 3-1 OUTDOOR DESIGN TEMPERATURES Location Outdoor Desilln Temp. in °F jLeatin Outdoor Desien Temp. in ° coolin Aberdeen 20 NNE 25.0 83 Anacortes 24.0 72 Anatone -4.0 89 Auburn 25.0 84 Battleground 19.0 91 Bellevue 24.0 83 Bellinizham 2 N 19.0 78 Blaine 17.0 73 Bremerton 29.0 83 Burlineton 19.0 77 Chehalis 21.0 87 Chelan 10.0 89 Cheney 4.0 94 Chesaw -11.0 81 Clarkston 10.0 94 Cle Elum 1.0 91 Colfax 1 NW 2.0 94 Adams, Chelan, Pend Oreille, [ 21 1 OTS -2584.2 COMFORT FOAM 178 Series INSULATION SYSTEM PRODUCT DESCRIPTION: COMFORT FOAM 178 is a closed -cell polyurethane system utilizing an EPA approved, zero ozone-depleting blowing agent. it is designed for use in commercial and residential construction applications. COMFORT FOAM 178 is compatible with most common construction materials. The benefits of COMFORT FOAM 178 include: • Superior insulation performance • Control moisture infiltration • Controls air infiltration • Ease of application • Non-fibrous APPROVALS AND CREDENTIALS: ASTM E-84* Listed at SGS US Testina Co.. Inc. Class I SPF Thickness 4.0 inches Flame Spread Index 25 Smoke Development Index 350 NFPA 286 8 inch wall 12 inch ceiling with 15 min. thermal barrier Tested at Intertek ETL Semko Test Report Number: 3116019-002c Attic & Crawl Space Tested at Intertek ETL Semko Test Method SwRI 99-02 Test Report Number: 3116311-002c . - This numerical flame spread rating does not reflect hazards presented by this or any other material under actual fire conditions. Polyurethane foam systems should not be left exposed and must be protected by a minimum 15 -minute thermal barrier or other code -compliant material as allowed by applicable building code(s) and Code Officials. Building Codes provide guidelines representing minimum requirements. Further information is available at www.lecsafe.org. Consult all Authorities having jurisdiction over an area for additional or specific requirements prior to beginning a project. TYPICAL PROPERTIES": PROPERTY VALUE TEST METHOD Liquid Resin —As Supplied Specific Gravity @ 70•F 1.180 ASTM D 1638 Viscosity @ 70•F (cps) 440 Brookfield As Cured Iso:Resin Mix Ratio (vol:vol) 1:1 Density, core (pcf @ 2" lift) Nominal 2.0 ASTM D 1622 Compressive Strength (psi) 22 ASTM D 1621 Tensile Strength (psi) 28 ASTM D 1623 Type C Closed Cell Content (%) >90 ASTM D 6226 Initial k -factor (Btu in/ftz hr •F) 0.165 (R=6.1ftn)*** ASTM C 518 Permeance (perms) 1.82 ASTM E 96 Permeability (perm inch) 1.82 @ 1" SPF ASTM E 96 0.91 @ 2" SPF 0.61 @ 3" SPF 0.46@4'SPF Air Permeance (Us/m2 @ 75 Pa) 0.000025 ASTM E 2178-01 Air Leakage (Us/int @ 75 Pa) 0.000025 ASTM E 283-99 Dimensional Stability (%Volume Change) Dry Age 28 Days (158•F) +8 to +12% ASTM D 2126 Freeze Age 14 Days (-20•F) +0.07 to —0.21 % ASTM D 2126 — - These physical property values are typical for this material as applied at our development facility under controlled conditions. SPF performance and actual physical properties will vary with differences in application (i.e. ambient conditions, process equipment and settings, material throughput, etc). As a result, these published properties should be used as guidelines solely for the purpose of evaluation. Physical property specifications should be determined from actual production material. The above data was collected from samples prepared using the following equipment configuration: • Gusmer' H-20/35 proportionerset at 1:1 volume ratio with 50 ft of heated delivery hose • Gusmer' GX-7 spray -gun configured with a #1 mix module and #70 PCD and/or GAP spray -gun configured with a #1 mix chamber • Process temperature settings: Isocyanate 130°F; Resin 130°17,• Hose 130°F • Process pressure: 1000 psig minimum while spraying COMFORT FOAM 178 has shown acceptable on-site performance with temperature settings in the range of 110°F - 130°F for Isocyanate, Resin and Hose. Every job site and set of ambient /substrate conditions are different; therefore, one set of process settings may not work for every situation. It Is the responsibility of the applicator to evaluate the on- site conditions and then determine the appropriate SPF reactivity and process settings. —The data chart shows the R -value of this insulation. 'R" means resistance to heat flow The higher the R -value, the greater the insulating power. Compare insulation R -values before you buy. There are other factors to consider. The amount of insulation will depend upon the climate, the type and size of yourhouse, and the fuel use pattems and family size. If you buy too much insulation it will cost you more than what you will save on fuel. To achieve proper R -values, it is essential that this insulation be installed property. V GIV Gr[HL IIV!'IJRIVI/11 I%JIV. COMFORT FOAM 178 is a spray polyurethane foam (SPF) system intended for installation by qualified contractors trained in the processing and application of SPF systems, as well as the plural -component polyurethane dispensing equipment required to do so. Contractors and applicators must comply with all applicable and appropriate storage, handling, processing and safety guidelines. BASF Polyurethane Foam Enterprises LLC technical service personnel should be consulted in all cases where application conditions are questionable. CAUTIONS AND RECOMMENDATIONS: COMFORT FOAM 178 is designed for an application rate of '% inch minimum to 2 inches maximum. Once installed material has cooled it is possible to add additional applications in order to increase the overall installed thickness of SPF. Typical installations are limited to a total thickness of 4 inches. This application procedure is in compliance with the Spray Polyurethane Foam Alliance (SPFA). COMFORT FOAM 178 is NOT designed for use as an EXTERIOR roofing system. BASF Polyurethane Foam Enterprises LLC offers a separate line of products for exterior roofing applications. For more information please contact your sales representative. Cold -storage structures such as coolers and freezers demand special design considerations with regard to thermal insulation and moisture -vapor drive. COMFORT FOAM 178 should NOT be installed in these types of constructions unless the structure was designed by a design professional for specific use as cold storage. COMFORT FOAM 178 is designed for installation in most standard construction configurations using common materials such as wood and wood products, metal and concrete. COMFORT FOAM 178 has performed successfully when sprayed onto wood substrates down to 30°F. For other substrates, please consult your BASF Polyurethane Foam Enterprises LLC sales or technical service representative for specific recommendations. Foam plastic materials installed in walls or ceilings may present a fire hazard unless protected by an approved, fire-resistant thermal barrier with a finish rating of not less than 15 minutes as required by building codes. Rim joists and / or sill plates, in accordance with the IRC, IBC and approval by the local Code Authority, may not require additional protection. Foam plastic must also be protected against ignition by code -approved materials in attics and crawl spaces. See relevant Building Codes and www.iccsafe.ora for more information. This product is neither tested nor represented as suitable for medical or pharmaceutical uses. In addition to reading and understanding the MSDS, all contractors and applicators must use appropriate respiratory, skin and eye Personal Protective Equipment (PPE) when handling and processing polyurethane chemical systems. Personnel should review the following document published by Spray Polyurethane Foam Alliance (SPFA): AX -171 Course 101-R Chapter 1: Health, Safety and Environmental Aspects of Spray Polyurethane Foam and Coverings and the following document available from the Center for the Polyurethanes Industries (CPI): Model Respiratory Protection Program for Compliance with the Occupational Safety and Health Administration's Respiratory Protection Program Standard 29 C.F.R. §1910.134 As with all SPF systems, improper application techniques such as: excessive thickness of SPF, off -ratio material and spraying into or under rising SPF. Potential results of improperly installed SPF include: dangerously high reaction temperatures that may result in fire and offensive odors that may or may not dissipate. Improperly installed SPF must be removed and replaced with properly installed materials. LARGE MASSES of SPF should be removed to an outside safe area, cut into smaller pieces and allowed to cool before discarding into any trash receptacle. SPF insulation is combustible. High-intensity heat sources such as welding or cutting torches must not be used in contact with or in close proximity to COMFORT FOAM 178 or any polyurethane foam. SHELF LIFE AND STORAGE CONDITIONS: COMFORT FOAM 178 Series has a shelf life of approximately three months from the date of manufacture when stored in original, unopened containers at 50-80°F. As with all industrial chemicals this material should be stored in a covered, secure location and never in direct sunlight. Storage temperatures above the recommended range will shorten shelf life. Storage temperatures above the recommended range may also result in elevated headspace pressure within packages. LIMITED WARRANTY INFORMATION — PLEASE READ CAREFULLY: The information herein is to assist customers in determining whether our products are suitable for their applications. Our products are only intended for sale to industrial and commercial customers. Customer assumes full responsibility for quality control, testing and determination of suitability of products for its intended application or use. We warrant that our products will meet our written liquid component specifications. We make no other warranty of any kind, either express or implied, by fact or law, including any warranty of merchantability or fitness for a particular purpose. Our total liability and customers' exclusive remedy for all proven claims is replacement of nonconforming product and in no event shall we be liable for any other damages. Revised 06.13.07 BASF Polyurethane Foam Enterprises LLC Ji LIWO ;r A v 0 To: To Whom it May Concern From: Jim Andersen, Technical Applicators Manager CC: B. Schenke, K. Frauenkron Date: 8/1/2006 Re: Non -Vented Construction The Chemical Company Most codes require ventilation for attic construction. The use of "hot roof' or unvented roof construction has become widely used for the last several decades. Closed -cell spray polyurethane foam (SPF) works well for cathedral ceilings and hot roof construction whereby the insulation is installed directly to the bottom side of the roof sheathing and there is no ventilation. The roof and wail junctions must be air tight for this insulation system to work. The spray application of our closed -cell polyurethane will absolutely provide an air barrier when properly installed. The total seamless, rigid air barrier does not allow wind driven snow or moisture to penetrate into the building envelope. The airtight construction requires a mechanical ventilation system that controls the humidity levels and air changes within the home. I have provided two technical articles that will provide documentation for this unvented construction. We hope that field inspectors will have enough information here to allow the non -vented use of SPF in these applications. Recent code changes to the International Codes are allowing for unvented conditioned attic assemblies under specific provisions, which includes the use of our product. If you need more information for your decision, please feel free to call 1-800-888-3342 and ask for technical sales. BASF Polyurethane Foam Enterprises LLC Helping Make 13630 Watertower Circle Buildings Better YM Minneapolis, MN 55441 Telephone: (763) 559-3266 Fax: (763) 559-0945 s Home Energy readers know, vent ng attics in hot, humid climates brings a great deal of moisture into the structure (see "Conditioned Attics Save Energy in Hot Cli nates," HE May/June '97, p. 6). Not venting the attic avoids this problem. What is less well understood is that venting causes many problems in cold (dry) climates, as well. For example, it allows a great deal of snow to blow in— especially the really fine snowflakes that 4iATTICS TESr'4, TREK Build your cold -climate attic with no vents— the shingles may not last quite as long, but you'll get big payoffs in performance and energy savings. weigh less than raindrops. Not venting also avoids this problem. Finally, as most builders know, venting roof assem- blies can be extremely difficult for roof designs with complex geometries. Not venting avoids these difficulties, too. Overcoming Objections I can hear the objections: What about moisture? What about sheathing temperature and shingle temperature in the summertime? What about the energy costs? What about the code? First, take moisture: People usually vent attics in cold climates to prevent moisture accumulation in the roof sheathing and control ice dams. In cold climates, moisture in roof assemblies typically comes from inside, and the key to problems with moisture is the tem- perature of the roof sheathing. Unvented attics have higher temper- atures on the underside of the roof sheathing. If this area—typically the first condensing surface—is kept above the dew point temperature of the inte- rior air -vapor mix, condensation and moisture accumulation will not occur (see Figures I and 2). Ice damming can be controlled by reducing heat flow to the shingles through air sealing and insulating to more than R-40, rather than by flushing heat away from the roof shingles with venting. The net effect is the same— the roof shingles are cold—but by elim- inating venting, we save a great deal of energy. r • . The underside of the roof sheathing is where the real benefits of not venting roof assemblies are found. Our field measurements and computer modeling The underside of the roof sheathing 80 Is the first condensing plane 70 'F R-30 batt ceiling insulation ,., 'L Dew temp. at 50% RH, 70 Continuous ceiling vapor 0 diffusion retarder? air retarde diffusion L 60 50 _ - - - - Mean daily temperature _--------------- y " _ "' ' - - - _ _ (6 -min polyethylene) '}0 (equal to the temperature _ _ of the underside of the _ _ --- Gypsum board ceiling a plywood roof sheathing as 30 shown in the adjacent drawing} ~ 20 Dewpointtemp.at35%RH,70'F J�-'____________ 10 Dew point temp. at 20% RH, 70 'F 01 Vent Apr. May Jun. Jul.. Aug. Sep. Oct. Nov, Dec. Jan. Feb. Mar. Apr. Month Figure I. Potential for condensation in a roof assembly In Chicago, Illinois. The roof assembly has R-30 fiberglass batt insulation and a vented attic space. By reduc- ing interior moisture levels, the potential condensation is reduced or eliminated. HOME ENERGY • NOVEMBER/DECEMBER 1999 www.homeenergy,org 27 UNVENTING ATTICS about 10%. That answers the energy question; Unventing attics in cold cli- mates saves energy. What about shingle temperature? Well, the answer to that question is, Don't use asphalt shingles. They have many disadvantages anyway. They burn. They are sensitive to ultraviolet light. They can't be made to last more than 15 to 20 years—despite what the war- rantysays. I Iail just kills them, and they -gas horrible stuff. But off they are cheap. And in cold climates, they are the roof covering of choice. When attics with asphalt -shingled roofs are left unvented, the operating temperature of the shingles increases slightly—on the order of 2%-3% of absolute temperature. This means that a black asphalt shingle roof that is typi- cally at 150°F will be at 153°F -155°F That 3°F -5°F increase can be impor- tant, since it translates into an approxi- mate 15% reduction in the useful service life of the shingle. Ona 15 -year shingle roof, that means you may lose 2 to 3 years in service life. Why is there only a 3°F -5°F increase in asphalt shingle temperature? Because radiation is the dominant fac- tor in heat transfer through roof assem- blies, 80- - ON 0 oft ly^ %0 R-28 ceiling insulation 60RsOonN "w .. ■ between 2 x 6 rafters 50111 Gypsum board ceiling � 40 � 30 20 10 Rigid insulation notched around rakers R-12 rigid insulation Note: Moisture levels The inside face 0 Apr. _ - May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Jan. feb. Mar. Apr. in conditioned space must be limited to 35% 707 of the roof sheathing forming the cavity is the first RH at condensing surface Month about 10%. That answers the energy question; Unventing attics in cold cli- mates saves energy. What about shingle temperature? Well, the answer to that question is, Don't use asphalt shingles. They have many disadvantages anyway. They burn. They are sensitive to ultraviolet light. They can't be made to last more than 15 to 20 years—despite what the war- rantysays. I Iail just kills them, and they -gas horrible stuff. But off they are cheap. And in cold climates, they are the roof covering of choice. When attics with asphalt -shingled roofs are left unvented, the operating temperature of the shingles increases slightly—on the order of 2%-3% of absolute temperature. This means that a black asphalt shingle roof that is typi- cally at 150°F will be at 153°F -155°F That 3°F -5°F increase can be impor- tant, since it translates into an approxi- mate 15% reduction in the useful service life of the shingle. Ona 15 -year shingle roof, that means you may lose 2 to 3 years in service life. Why is there only a 3°F -5°F increase in asphalt shingle temperature? Because radiation is the dominant fac- tor in heat transfer through roof assem- blies, i■ii ■ter "w .. ■ Figure 2. Potential for condensation in a roof assembly in Chicago, Illinois. The unvented cathedral ceiling has R-12 rigid insulation above R-28 batt insulation, The R-12 insulating sheathing raises the dew point temperature at the first condensing surface so that no condensation will occur with Interior conditions of 35 % rela- tive humidity at WE show that, without attic venting, the temperature of the underside of the roof sheathing increases by 10°F -20°r. In cold climates, this is an advantage. Unventing roof assemblies in most cold climates decreases the heating load by and venting the roof does not affect the radiation heat transfer. Also, the underside of the roof sheathing is not an efficient plywood -to -air heat exchanger, so venting is of li ttle impor- tance in reducing shingle or sheathing temperature. I have about 1,000 unvented shingled roofs under my belt. Most of them are in Canada—yeah, I know, the laws of physics are different up there—but a lot of them are in New England, Michi- gan, and Colorado. More than a third of them are now over ten years old, and they are doing fine. The biggest problem with building these unvented attics has been building codes. The codes do not lft ike unvented roof assemblies. But changes are com- ing. First it was the 1997 edition of ASHitAE Fundamentals—it likes unvented roof assemblies (see "Vapor, Not Vents"). Then we (the Building America guys and gals) changed the building code in Las Vegas. We have more than 300 unvented roof assem- blies constructed there so far. I predict that, in five years, the codes everywhere will have changed. Joseph LstibureJa is an engineer and tlteprin- ci15le investigatorfor the Building Science Consortium, a Partner in the Department of Energy's Building America program. 28 wvnuhomeenergyorg NOVEMBERJDECEMBER 1999 •HOME ENERGY What's the value of ventilation I March 2002 ( Professional Roofing Magazine Page 1 of 6 March 2002 Table of Contents 4 To Subscribe 4 Roo I ofessionat Advertisers Index 4 Pastlssues 4 Professional Roofing 4 NBCA Home 4 Search This Site 4 A study of asphalt shingles demonstrates ventilation may not be as important as other variables by Carl G. Cash, PE, and Edward G. Lyon, PE The topic of asphalt shingles splitting and cracking has received much attention lately. Asphalt fiberglass shingles have been experiencing vertical splits, as well as horizontal splits in exposed tabs. These dislocations, called thermal splits, are the subject of a great deal of litigation, including class-action lawsuits. The splits are not associated with quality of installation. Rather, the splits occur in shingles where self-sealing adhesive firmly adheres the shingle tabs and a shingle's tear strength is low or inadequate to withstand a thermally or mechanically induced load. Whenever asphalt fiberglass shingle manufacturers are faced with thermal -splitting problems, one excuse they usually offer is that the area under a roof deck was not ventilated properly. This excuse is offered not because there is any evidence of a cause -and -effect link between thermal splitting and ventilation but because shingle warranties (all the shingle warranties listed in NRCA's 2002-03 Steep -slope Roofing Materials Guide) specifically exclude warranties In the case of "inadequate attic ventilation." This is based on the premise that shingles applied to decks over unventilated attics will be unacceptably hotter than shingles applied to decks over properly ventilated attics and have significantly shortened service lives as a result of the increased temperature. Lawyers say impractical or unreasonable contract or warranty provisions may not be supported by court decisions, The following information reveals results from a study we conducted that investigated the reasonableness of the "inadequate attic ventilation" exclusion in warranties. Some parameters that can influence roof temperature are geographic location, color, exposure orientation, slope and degree of attic ventilation, We report the means (averages) of the maximum and average annual temperatures of the roofing materials for each combination of these parameters. Geographic location The National Oceanic and Atmospheric Administration lists 264 locations in the United States that are representative of all U.S. climates. The locations range from Key West, Fla., with the warmest average annual temperature (79 F [26 Cj), to Barrow, Alaska, with the coldest average annual temperature (9 F [-13 Cj). Previous research by Cash has shown temperatures plotted on a graph form a sinusoidal wave that is equally balanced (symmetrical) around the average temperature at each location. Therefore, mean temperature is an accurate index of a thermal environment. http://www.professionalroofing.net/past/marO2/feature2.asp $/2/2006 What's the value of ventilation I March 2002 ( Professional Roofing Magazine Page 2 of 6 For this study, we used the following seven locations (we excluded the West Coast because of its mild temperatures) to study the variation of roofing materials' temperatures with respect to geographic location (mean temperatures for each location are noted): • Boston -51 F (11 C) • Chicago -53 F (12 C) • Green Bay, Wis.--44 F (6.5 C) • Phoenix -70 F (21 C) • Raleigh, N.C.-59 F (15 C) • Miami -76 F (24 C) • Washington, D.C.-57 F (14 C) Study details We used white and black shingles in our study. The materials' albedos (overall measure of a material's reflectivity to the full spectrum of the sun's energy) and emmissivities (percent of absorbed energy a material can radiate away from itself) used were obtained from measurements at the Lawrence Berkeley National Laboratories, Berkeley, Calif. We limited our calculations to roof surfaces facing the following orientations: 90 degrees east, 135 degrees southeast, 180 degrees south, 225 degrees southwest and 270 degrees west. In addition, we calculated the temperatures of roofs with slopes of 3 -in -12 (14 degrees) to 12 - in -12 (45 degrees) in 12.5 percent (1 -inch -per -foot) increments. In this article, we only report the calculated results in 25 percent (3 -inches -per -foot) increments because these calculated temperatures are close to each other. Our calculated roof temperatures are reported without ventilation; with attic ventilation provided by 0.33 percent ventilated areas (1 square foot for each 300 square feet of attic plan area) and wind perpendicular to roof slope (no wind assistance to ventilation); and with 0.33 percent ventilated areas (1 square foot for each 300 square feet of attic plan area) and wind normal to the roof orientation (maximum ventilation assistance from wind). Computer input As the model for our calculations, we used the Hastings Ranch Nouse referenced in Analytical Study of Buildings with reflective roofs," published by the National Institute of Standards and Technology. We chose a cathedral ceiling rather than truss -attic space to maximize the difference between ventilated and unventilated roof temperatures. The ceiling - to -roof covering assembly construction we used was as follows: • 1/2 -inch- (13 -mm-) thick gypsum drywall sheathing • 10 -inch- (254 -mm-) thick fiberglass batt insulation between joists 16 inches (406 mm) on center • 2 -inch- (51 -mm-) thick clear airspace (to maximize the venting air effect, we did not use an air -friction value in any calculation) • 5/8 -inch- (16 -mm-) thick plywood sheathing • No. 15 asphalt felt and asphalt fiberglass shingles http://www.professionalroofing.net/past/marO2/feature2.asp 8/2/2006 What's the value of ventilation ( March 2002 1 Professional Roofing Magazine Page 3 of 6 The mathematical model calculates heat gain and loss for a width of roof extending from eave to ridge. The properties of each layer of the roof assembly are lumped together to create a calculation node. For our model, we subdivided the insulation layer into thin sections and assumed a uniform 70 F (21 C) interior temperature. We then calculated the heat transfer between nodes in small-time increments because exterior temperature varies through a sinusoidal wave function based on average monthly conditions. We used the average monthly cloud conditions to modify the solar equations in "Solar Engineering of Thermal Processes," by J.A. Duffie and W.A. Beckman, to reduce solar radiation gain by up to 60 percent and nighttime radiation cooling by 100 percent for full overcast cloud conditions. The potential for snow cover to reduce daily roof temperature cycles was not considered in this study. We also calculated dew -point temperatures required for radiation gain and loss from a sinusoidal temperature and relative humidity function based on observed monthly average conditions. Average local wind speeds were adjusted from airport observation height and exposure conditions to an urban exposure at a 10 -foot (3-m) eave height. Wind speed was used to calculate roof convective heat -flow coefficients, as well as its influence on roof ventilation. In addition, we calculated ventilation airflow by applying the pressure developed by ventilated space and outdoor air temperature differences (stack effect), wind effects, and airflow resistance of screened openings at the eave and ridge. (We divided the ventilation area equally between the eave and ridge.) During the study, wind blew either at an angle that maximized the pressure developed on the vents or at an angle that did not influence the stack -effect pressures. The ventilated space had no resistance in these calculations to maximize the effect of ventilation. For unventilated roof systems, the calculated temperatures are representative of an entire roof system. For ventilated roof systems, the calculated temperatures are representative of a point halfway up a roof system. Air movement would make eave and ridge areas slightly warmer or cooler than the calculated temperature depending on airflow direction. The maximum roof temperature at any point for ventilated roof systems will not exceed the temperature of unventilated roofing materials. Ventilated roofing calculations required a small time adjustment for calculations to remain stable. Because of calculation time constraints, we modeled one day in the middle of each month as representative of monthly average conditions. We started our calculation model at a uniform average layer temperature for a particular month and allowed a complete day calculation cycle for the assembly to normalize. We then calculated a second day cycle to generate peak and mean temperature values for the month. The yearly mean temperature was calculated by a weighted average of the monthly calculations. Computer simulations often require correlation testing before being accepted as absolute predictors of real-world conditions, In our case, the goal was not to attempt to precisely predict a particular roof temperature but to study the "all other things being equal" thermal performances of different ventilation systems. Ventilation obviously will reduce roof temperature, and we have attempted to generously model the airflow potential of ventilated roof systems to define an outer boundary for cooling effects. Previous work by Cash developed a thermal model and empirical relationship between a roof system's average service life and mean annual temperature to which roofing materials are exposed. In the case of asphalt shingles, a change of 1 degree Celsius is about equal to one-fourth of a year in average service life. http://www.professionalroofing.net/past/MarO2/f`eature2.asp 8/2/2006 What's the value of ventilation I March 2002 1 Professional Roofing Magazine Data and results Some data generated in the study are listed in Figures 1 to 4. The calculated temperatures are reported to two decimal places -not to imply an accuracy that does not exist but because some differences otherwise would be too small to distinguish. The average roof temperature difference between roofing materials on unventilated decks and ventilated decks and difference between the temperature of roofing materials on unventilated decks and wind -assisted ventilated decks are listed in Figure 1, HortaA _OA_ 1.31 1.39 _. 2 _o,d4_ 0.99 � i 1.53 Orion M. Wia. _ _4.55 p nD.r33 _ _ _ _- ._ . _...._._ _ _._-4.� 0.75 1.36 096 .._...__._.._._.......... 1.38 i,_7J .z Ei4'.............._. U 93 _ 2 t3 1.21 8alnipb,H.C. p.61 ------------ . _. ___.... _...... Rapi :.:_:...... :. _ .. _.:....._..:., ...:.•:•_..;, .._._,.._: _..,........__.._.__._.._ ---_.__...---..._..__.___ .60 ___.... 1� G IIS .dock:,..a.n:.d..: 1 +19 .. , .. ---...._ .... _.�_._... _.. vwbh.c.. f v vnhoAx3 aHyror n�7(WU ahv a dvrartvrctrs bcthw:orr urnvanGlotad and yn v,antad J•oc.k-s rind r ecku with wvrrivim.i6 rd WrOroWn Figure 2 lists the variations in average roof temperature caused by changing roof system color from black to white shingles, Plgva c 2: 7T rt vnrrut4xr UP arrr, 7u rao(r rrtfNUr tdr.oN na a tIM1.4 0 er W chanro bV(;V rn Mark rind Mow shit fiur, Our data show roofs that face west have the lowest roof temperatures of those measured. We are quite sure roofs facing northwest, north or northeast would have lower temperatures, but western -facing roof temperatures are the lowest we calculated. We found the highest mean roof temperatures in south -facing roofs. The maximum difference between mean roof temperature of roofs facing south and west can be found in Figure 3. tloatw _ 1.31 2.36 Figur a M. Rut mmrtnarn rbt(uranat hr rndarr rt)(d t(xrT{nnt'ittktt td ttv(a Ruwrr) mid? and tvaat The slope with the maximum and minimum mean roof temperatures varied with location and slope. Figure 4 shows the maximum variation in mean roof temperature calculated for slopes of 3 -in -12 (14 degrees) to 12 -in -12 (45 degrees). Page 4 of 6 http://www.professionalroofing.net/past/mar02/feature2.asp 8/2/2006 _*-1.19 2 56 1.31 _. z. t A 2.37 1.29 _. 2 CMica;o1.46 Crrrn tSa ,11fir 1.49 2.68 1.34 ? 41 �.c��_............ ..>.9S .._.._ 1 Mlsrii _,__.......•.:... ..._-_ _..- 1.811 -.. - - - 3.14 096 .._...__._.._._.......... 1.38 i,_7J .z Ei4'.............._. U 93 _ 2 t3 Vkne�ix prletEb, H.C. ....._..-.-_-� 1.74 -- -• 1 'airy 2.74 ----•_._.-.-_.._.....,--i• 2.�__...... ....: .............._..___ S.3A 2.47 1.35 243 ,.........._..... 2:l7 wathlogton, O.C. 1.49 _._.._.._ Figur a M. Rut mmrtnarn rbt(uranat hr rndarr rt)(d t(xrT{nnt'ittktt td ttv(a Ruwrr) mid? and tvaat The slope with the maximum and minimum mean roof temperatures varied with location and slope. Figure 4 shows the maximum variation in mean roof temperature calculated for slopes of 3 -in -12 (14 degrees) to 12 -in -12 (45 degrees). Page 4 of 6 http://www.professionalroofing.net/past/mar02/feature2.asp 8/2/2006 What's the value of ventilation I March 2002 1 Professional Roofing Magazine Page 5 of 6 Figure A; iha n)Amkol m W *jrion .01 014Mrr NO r&II) IMUffKr !(H' sr[ryr+ri qr U rrs. i is p4 uayj"oul rr1 r r,.,n.. r a r,+a (ruliru ). We also wanted to determine the maximum monthly roof temperature (hottest roof system) and greatest temperature difference with 1/300 ventilation (best ventilation) for each location. For the roof systems with black shingles, we studied maximum roof temperature; temperature differences for ventilated, ventilated with wind and change to unventilated white shingles; yearly mean temperature; and mean temperature differences for ventilated and change to unventilated white shingles. We found roof temperature extremes do not relate directly to mean temperatures for service life. In all instances, changing roof color from black to white has more effect on yearly mean temperature than ventilation. Ventilation reduces the yearly mean temperature of a black roof system by an average 0.7 degrees Celsius, and changing to white shingles reduces the yearly mean temperature by an average 1.6 degrees Celsius. Conclusions The following conclusions are based on data from our numerical model: • The greatest influence on roof temperature is geographic location. The mean roof temperatures for Miami and Green Bay, Wis., for example, differ by 18 degrees Celsius. • The direction a roof faces has the second greatest influence on average roof temperature (in excess of 1.44 degrees Celsius in the east through south -to -west range studied, but the real difference is greater because other directions, such as north, will be cooler). • The color of roofing materials influences the mean temperature of a roof system slightly less than direction (1.45 degrees Celsius average for these parameters). • Ventilating the area under a roof deck reduces the average temperature 0.5 degrees Celsius (about one-third the influence of the direction or color and one -thirty-sixth the Influence of geographic location). Even with wind assistance, ventilation reduces average roof temperature about half as much as using white rather than black shingles. • Within the ranges studied, slope has the least influence on average shingle temperature. Many shingle manufacturers provide warranted products that are widely distributed and are of many colors and exclude from warranties those shingles installed on unventilated decks. This exclusion has no justification; the variations in geography, direction and shingle color have greater influences on average temperature than the degree of ventilation. However, ventilation should be recommended to remove the small quantity of moisture in a roof system; it can prolong the life of a wood deck even if it does not extend the life of shingles. http://www.professionalroofing.net/past/marO2/feature2.asp 8/2/2006 What's the value of ventilation I March 2002 ( Professional Roofing Magazine Page 6 of 6 Cart G, Cash is a principal with Simpson, Gumpertz & Heger Ina, Arlington, Mass., and Edward G. Lyon is a senior staff engineer with Simpson, Gumpertz & Heger. Copyright © 2004 National Roofing Contractors Association http://www.professionalroofing.net/past/marO2/f`eature2,asp 8/2/2006 Spiray Polyurethane1 i'i Roofs1 1' Attics >N P FA a Business Unit of the American Plastics Council This document was developed to aid in the use of SPF in Cathedral roof/attic applications. The information provided herein, based on current customs and practices of the trade, is offered in good faith and believed to be tike, but is, made WITHOUT WARRANTY, EITHER EXPRESS OR IMPLIED, AS TO FITNESS, MERCHANTABILITY, OR ANY OTHER MATTER. APC DISCLAIMS ALL LIABILITY FOR ANY LOSS OR DAMAGE ARISING OUT OF ITS USE. Individual manufacturers and contractors should be consulted for specific information. SPFA does endorse the proprietary products or processes of any individual manufacturer, or the services of any individual contractor. APC does not endorse the proprietary products or processes of any individual manufacturer, or the services of any individual contractor. To order copies of this publication, call 800-243-5790 and request SPFA Stock Number AY -141 Spray Polyurethane Foam Alliance Copyright January 2003 q; a Business Unit of the Amerioan Plastics Oounau M Spray Polyurethane Foam (SPF) And Cathedral Roofs & Cathedralized Attics Closed cell, spray polyurethane foanl (SPF) may be used to construct unvented cathedral roofs and cathedralized attics. It can be applied in sufficient thickness to satisfy local energy code requirements, directly to the underside of roof sheathing between rafters or joists of any slope in all (heating, mixed and cooling) climates. This configuration controls the entry of moisture -laden air into the insulation and also eliminates dew - point occurring at the underside of the roof deck and anywhere in the insulation, in all (heating, mixed or cooling) climates*. Due to the fully adhered, closed cell properties of SPF, air and moisture are displaced out of the insulated space — including at rafters and sheathing. Moisture cannot enter the insulated space from any direction, eliminating the requirement for roof venting. Venting above the closed cell SPF could reintroduce moisture laden air into a new air space below the roof sheathing, which may introduce another moisture condensation problem. Therefore, venting above the SPF in these configurations is not recommended. *(Assumes the suitable thickness of SPF is applied to provent condensation) Spray Polyurelliane Foam Alliance 1300 Wilson Blvd. Arlington, VA, 22209 800-523-6154 CATHEDRALIZED ATTICDETAIL NOTE IN COLO CLIMATES, EMBED METAL CONNECTOR PLATES IN SPF TO PREVENTLVINTERTIME CONDENSATION. CLOSED -CELL SPF TO SPECIFIED THICIW ESS ROOF SHEATHING n TRUSS TOP CORGI RAFTER nrtnnnnnn nrtnnnnnn nrtnnnnnn nrtnnnnnn nn PROTECT SPF SURFACE FROM IGNITION CEILING I THERMAL BARRIER AS REQUIRED BY CODE AS REQUIRED BV CODE �`m PFA t], a Business Unit of the A--ican Pl..ti" Council 1300 Wilson Boulev "I' Suite 880 Aninglon, VA 22209 • 800523.6154 —v prayloam.org 02003 SPFA 4 Energy Design Update© In short,�specifying that ducts should be installed within the conditioned space is easier said than done. Although Zoeller's tone is war -weary, he retains his sense of humor. "We've been mess' around with all kinds of ways to do this . dropped soffits, plenum trusses, burying ducts in attic cellulose or polyurethane foam," he says. "We've tried different systems, proved them, and messed up, again and again. We understand the limitations of all the systems out there." Instantaneous Hot Water Since no one wanted to cut down the mature shade trees on the model house lot, a solar water heater was ruled out. Instead, domestic hot water is provided by a nat- ural gas Takagi instantaneous water heater with a flow rate of up to 6.9 gallons per minute. The sealed -combus- tion unit has a 3 -inch combustion air duct and a 4 -inch flue vented through the roof. The water heater has elec- tronic ignition, and therefore no wasteful pilot light. Since the heating load in Gainesville is relatively low -- Gainesville has a design temperature of 32°F—heat is provided by a fan/ coil unit (an Aquecoil unit from Trevor -Martin Corporation) supplied with hot water from the water heater. Since the Takagi unit has a capacity of 168,000 Btus per hour, it can handle the domestic hot water load in addition to the hydrocoil load without a problem, says Zoeller. Using the water heater for heat avoids the cost of a furnace; however, a condensing furnace would have been more energy-effi- cient. According to Zoeller, "A condensing furnace would be overkill in Gainesville." All interior lighting fixtures have fluorescent tubes or compact fluorescent bulbs, and all appliances have the Energy Star label. To maintain high indoor air quality, the house has no carpeting. Energy Use The house has achieved a HERS score of 92. When some last-minute air sealing work is completed, Jones expects the HERS score to rise to 94.5. June 2004 Because of its tight, well -insulated envelope, as well as its high-performance windows, the Madera house has very low heating and cooling loads. Moreover, those loads are satisfied by relatively efficient HVAC equip- ment. Computer modeling by the CARB team projects that the house will use 70% less energy for heating,' cooling, and domestic hot water than a conventional house (that is, a house with 2x4 walls, R-13 wall insula- tion, R-19 attic insulation, a 78% AFUE furnace, and a SEER -10 air conditioner). Its total energy use—includ- ing lighting, appliances, and "plug loads" is expected to be about half that of a conventional home. JPearls from Affordable Comfort In late. April, the annual Affordable Comfort conference V attracted' 1,371 attendees, a record number, to Minneapolis (see Figure 3). As usual, a renowned gath- ering of energy -efficiency experts presented workshops on a wide range of topics, including new construction, weatherization, and HVAC systems. Jones predicts that the home will sell for about $364,000. He estimates that the home's energy -efficiency features added about 7% to the home's construction costs. For more information, contact: Eco -Block, P.O. Box 14814, Fort Lauderdale, FL 33302. Tel: (800) 595-0820 or (954) 766-2900; Fax: (954) 761- 3133; Web site: u mv.eco-block.com. Pierce Jones, University of Florida Energy Extension Service, P.O. Box 110940, Gainesville, FL 32611-0940, E- mail: ez©energy.ufl.edu. Jordan Windows & Doors, P.O. Box 18377, Memphis, TN 38181-0377. Tel: (901) 363=2121; Fax: (901) 362-5051; E-mail: custseiv_ewd@jordancompanycom; Web site: http://jordanc6mpan y.com. Takagi USA, 3-B Goodyear, Irvine, CA 92618. Tel: (888) 882-5244 or (949) 770-7171; Fax: (949) 770-3171; Web site: zvzvzatakagi-usa.com. Trevor -Martin Corporation, 4151112th Terrace North, Clearwater, FL 33762. Tel: (800) 875-1490 or (727) 573- 1490; Fax: (727) 572-9350; Web site: zvMatrevormartin- corp.com. William Zoeller, Consortium of Advanced Residential Buildings, 50 Washington Street, 6th Floor, Norwalk, CT 06854. E-mail: wzoeller@swinter.com. Many experts sprinkled their presentations with pithy statements, strong opinions, and wit. In a workshop called Wet, Stinky Basements, Terry Brennan, president of Camroden Associates in Westmoreland, New York, said; "What distinguishes a pond from a basement is a drain." Larry Palmiter, senior scientist at Ecotope in �U Folubscriptions call 1-800.638-8437 or visit our Web site at www.aspenpublishers.com Energy Design Update@ why it's important to get the energy loads down before spending all this money on solar." "_"entad Cathedral Ceilings June 2004 without the rigid insulation, you have been playing with fire and getting away with it. As soon as the inte- rior moisture level gets above 30 percent, you will run into trouble." Dean Talbott, program manager at Minnesota Power in Duluth: "A lot of builders Have been installing Joseph Lstiburek: "You get some vapor diffusion unvented cathedral ceilings. We were told we could get through OSB or plywood and shingles, so you don't away with it. l hope they can work, because there are a want to put Ice and Water Shield over the whole roof lot of them out there. But we have tested a few that unless it is perfectly ventilated or insulated above the have failed miserably. The people promoting these deck with rigid insulation." unvented hot roofs say that we know how to keep moisture out of the roof assembly, so if we build them Unvented Conditioned Attics carefully we can save energy and simplify the construe- Joseph Lstiburek: ".The more complicated the roof, the tion. But there are ways that moisture is getting into' h ra der. itis to vent. In heavy snow areas, if the building some of these roofs. One of them failed after eight or has a complicated roof, I always recommend bu' ding nine years. The builder pulled it apart, disposed of the an unvented roof." rotten materials, and put it back together the same way it was built originally. A year later the homeowner called us in to look at it. We tested the roof with our moisture meter, and the sheathing was completely sat- urated. The point is, if there is any leakage flus is a totally unforgiving assembly." Joseph Lstiburek: "For an unvented insulated roof in a cold climate, you need to control the temperature of the condensing surface, so you need to add rigid insulation on top of the deck. The colder the climate, the more insulation you need. In Minnesota you need to add more than 50 percent of the roof R -value on top of the deck. An unvented cathedral ceiling insulated with dense -pack cellulose will only work, in my view, with thermal insulation on top of the deck, unless you have almost no moisture inside. If this system works for you, INEWS BRIEFS SACRAMENTO, CA—The California State Senate has passed a bill (SB 1652) requiring that -a percentage of new homes in developments of 25 homes or more include photovoltaic (PV) -systems beginning in 2006. The percentage of homes that will be required to have PV systems has not yet been specified. The sponsor of the bill, Democratic Senator Kevin Murray, announced, "Solar power is much more cost-effective when included in the construction of new homes." In testi- mony opposing the bill, a representative of the California Building Industry Association expressed concern over the bill's cost to builders. The California Energy Commission estimates that installing a 2 -kW PV system on a new home costs about $11,000. To become law, the bill requires the approval of Governor Schwarzenegger. Joseph Lstiburek: "There are climatic limitations to the use of low-density spray foams. like Icynene for unvented conditioned attics. In Minneapolis we are finding there is moisture accumulation at the Icynene/roof deck interface. Icynene should not be installed against a roof deck any farther north than Chicago or Boston. Further north, you need a vapor retarder over the Icynene if it is exposed—two layers of latex paint will work. But dosed -cell foam works for this application everywhere." For more information on the annual Affordable Comfort conference, contact Affordable Comfort, 32 Church Street, Suite 204, Waynesburg, PA 15370. Tel: (800) 344-4866 or (724) 627-5200; Fax: (724) 627-5226; Web site: www.affordablecomfort.org. ATLANTA, GA—Scientists from the Georgia Tech Research Institute (GTRi) are studying the use of radar to detect mold behind gypsum wallboard. According to the researchers, mold emits a unique backscatter signa- ture when exposed to millimeter -wave high-resolution radar. The researchers hope to develop a hand-held radar -mold detector that might sell for $1.,000 to $2,000. "We think this technology is on the cutting edge for detecting mold behind walls," says GTRI researcher Gene Greneker. For more information, visit http://gtresL,archnews,gatech.edu. MADISON, WI As part of the US Department of . Energy's Building America program., the Consortium of Advanced Residential Buildings (CARB) will be test- ing the performance of MemBrain, the smart vapor For subscriptions call l-800438-8437 or visit our Web site at www.aspenpublishers.com Energy Design Update@ The RightWayTo Cathedralize An Attic In a recent paper published ui the Journal of Building Physics, Armin Rudd, an engineer with the Building Science Corporation of Westford, Massachusetts, stun- marized the results of his investigations into the perfor- mance of cathedralized attics. (Ann attic is "cathedral- ized" by moving the insulation from the attic floor to the rafter bays, thereby creating a conditioned space for attic HVAC equipment. For more information on cathedral- ized attics, see EDU, November 1997, September 1998, and October 2002.) Rudd's paper identifies several potential pitfalls facing anyone building a cathedralized attic. He advises; In a cold climate, builders should avoid using a fibrous insulation that is permeable to air movement (see Figure 2). In a cold climate, builders using Icynene or similar low-density foams should include a vapor barrier. In a hot humid climate, builders should 'install a vapor -retarding roof tulderlayment under asphalt shingles. Most Cathedraiixed Attics WorkWeli Rud&s paper reports on field investigations and research proj- ects in at least six states: California, Florida, Massachusetts, Minnesota, Texas, and Wisconsin. Most of the cathedralized attics he inspected performed well. For example, Rudd inspected two attics in Florida that had been cathedralized by spraying open -cell, low-density fo• rn insula- tion on the underside of the plywood roof sheathing. He reports; "At the time of inspection, the roof sheath- ing showed no signs of moisture condensation, mold, discoloration, delamination, or deterioration. The roof sheathing and adjacent fram- ung appeared as good as new. Wood moisture content reading ranged between 77o and 1670 for the sheath- ing, with the median about 1070." Indirectly Conditioned Attics Most cathedralized attics are indirectly conditioned—that is, they lack a regis- February 2006 ter supplying conditioned air from the fuunace or air conditioner. However, even without direct condition- ing, an attic that is capped with insulation is usually within a few degrees of the temperature of the condi- tioned space below. For example, monitoring equip- ment installed in the cathedralized attics of ten homes in Bmuning, California, showed that: "... During the cooling season the ... [attics were within] -2°F and -1-6"F of the living space, with the largest group between -2 and OOF temperature difference.... During the heat- irlg season, the ... [attics were] mostly between -2°F and +2°F of the living space, with the largest group between -2°F and 0°F temperature difference. These are small differences." Rudd concluded, "The measured temperature condi- tions showed that the UC [unvented conditioned] attics were essentially at the same conditions as the actively conditioned space. This did not change with Figure 2. Air -permeable insulation, like this netted cellulose, should not be used to cathedralize an attic in a cold climate. The photo shows one of the roof assemblies in Phoenix, Arizona, studied by Armin Rudd; a HOBO temperature / relative humidity sen- sor is visible on one of the truss chords. For subscriptions call 1.800-638-8437 or visit our Web site at www.aspenpublishers.com February 2006 Energy Design Update® Figure 3. When Icynene is used to Insulate a cathedralized attic in Florida, no vapor retarder is necessary. In cold climates, however, an interior vapor retarder is necessary to avoid possible moisture problems. variation in the leakage and pressure differential test results. Hence, the current opinion is that the UC attic space behaves nearly the same as the actively condi- tioned space below it when it meets the leakage crite- ria for building enclosures with the attic access open." Shingles Don't Get Too Hot Rudd found that insulating the roof deck does not sig- nificantly increase the temperature of asphalt shingles. He wrote, "The summertime average daily tempera- ture of roofing materials is nearly unchanged whether vented or unvented." For example, in Jacksonville, Florida, Rudd found, "on average over the whole month [August 20011, the UC attic shingles were 0,2°F warmer than those over the standard vented attic. These data represent the worst case—dark, gray -black, south -facing shingles." Although some manufacturers of asphalt shingles may still dispute the issue, Rudd concludes: "Since the tem- perature of the roof shingles was shown not to be sig- nificantly affected by the presence of insulation it was unlikely to affect the durability of the shingles." The Importance Of Stopping Air Movement Because fiberglass insulation provides no barrier to air movement, Rudd recommends against using fiber- glass batts in cathedralized attics, especially in cold climates. He writes, "The earliest form of UC attics used in residential construction employed polyure- thane spray foam insulation adhered directly to the underside of the roof sheathing and gable end walls, This has been especially successful in hot humid regions to remedy moisture -related problems caused by the condensation of moist air on cool supply air ducts or on gypsum wallboard surfaces. ,.. The spray foam application inherently eliminates air movement, whereas the fibrous insulation applications [netted -and -blown cellulose or fiberglass batts] allow air movement which, depending on the sheathing temperature, can lead to moisture condensation under the roof sheathing." In cold climates, fiberglass insulation will fail in this application unless rigid insulation is installed on top of the roof deck. Rudd advises, "If air -permeable insulation is used for UC attics in dimates-with roof sheathing temperatures that dip below 45°F for days at a time, then rigid insulation should be installed above . the structural roof sheathing to keep the roof sheathing temperature above 450F." Elsewhere, he writes, "When cold temperatures prevail for extended periods, it is doubly important to avoid moisture condensation on roof sheathing. Air -impermeable polyurethane spray foam applied continuously and directly to the tuider- side of the roof sheativng and framing is preferred." Icynene Problems Although there have been sporadic reports of moisture problems in Icynene-insulated homes (see EDU, April 2005 and fury 2005), there have been few pub- lished articles reporting measured moisture lev- els in Icynene-insulated wall or roof assemblies. Interestingly, Rudd's paper provides valuable data on moisture measurements in several cold -climate condi- tioned attics insulated with Icynene----or, as he refers to the insulation in his paper, "open -cell, semi -flex- ible, low-density foam with a published water vapor permeance of 16 imperial perm at 3 inches thickness." (In addition to Icynene, at least two other low-density foam products meet this description: BioBased 501 and Dernilec Selection 500). Rudd investigated six Icynene-insulated attics: four in Minnesota, one in Wisconsin, and one in Massachusetts (see Figure 3). He writes, "At all the sites investigated, at least one sample of the foam insulation was removed from within 5 feet of the roof peak. The location near the roof peak was chosen to reflect the worst case, since indoor air moisture conditions are most elevated at high points in roofs due to moisture buoyancy. ... In some cases ... indoor huunidity was higher than nor- mal.... Considering the severe cold climate, the high humidity conditions, and the permeable open -cell foam insulation, it is understandable that the unsatisfactory ti For subscriptions call 1-800-638-8437 or visit our Web site at www.aspenpublishers.com 10 Energy Design Update® February 2006 7alile 1` Moisture Measearement Resulfs, 'InsulatlonType InsulationThicl<ness ; Roof Orientation House Interior: RoofSheattiin 'Moisture` Relative Humidity Coj1`tenC Range"'`-" :Open cell foam', 4 6 Soutlt 44/0 12/.;- 17/ , ;`> :Open-cell;foam r 3" 5" : ; North 44% 0ver40%',.f :i% L'J,•j r% (.•I,\5..0i.. .0...-cell'foam ,1 it _�I'i 5 - a% � North ... e.• o•:�;: .. Open-cell;foam 5"-7" South 44% 1.2- 16(f:"';'.;•:;:: Table • I. Ata kliihesata•house with an Icynene-Insulated cathedralized attic, the moisture content of the roof sheathing was $y4r 40% In C7o, :.:: ;:• }, .•:. Ibcatlans::The liause ls.located fn a climate with 9,006 heating degree days. Other houses inspected by Rudd had lowed oof;fieathing moist a levels; at one hoiise`I'q Mas sachusetts,'all readings were below, l8% moisture content, The Information in phis table came fromTalilet'�/;iri "Field Performance of . tlnvented,Cathedral(z6d (UC)A,eddS In the USA;' by Armin Rudd. " wood moisture conditions were found at three out of the four houses inspected in Minnesota and Wisconsin. Despite this, there were no observations of fungal growth or wood deterioration." Rudd's paper includes a table indicating that two areas on the north roof of one of the Minnesota homes had sheathing with a moisture content over 40% (see Table 1, page 10), At another Minnesota home, three areas on the north roof had sheathing with a moisture content between 25% and 28%, At a third Minnesota home, one area on the north roof had sheathing with a moist -tire content between 20% and 25%. Finally, at the Wisconsin home, two areas of the roof had sheathing with a moisture content above 40%. These moisture measurements provide a strong argument in favor of the installation of a vapor retarder in cold -climate Icynene-insulated homes, Solar Vapor Drive7hrough Shingles? Rudd was one of the first investigators to identify the problem of solar vapor drive through asphalt shingle roofs (see EDU, January 2003), In his paper, Rudd describes observations he made in a cathedral- ized attic insulated with netted cellulose insulation in Houston, Texas: "It became apparent that solar - driven moisture through composition shingles was a significant factor to be accounted for. When roof temperatures fall below the dew point because of night sky radiation, moisture condenses on the top surface of the roof. Thus, in the morning, the roofs are generally weft. Some of this moisture is drawn into the material and between the laps of the shingles. Solar radiation subsequently heats the roof surface and drives water vapor into the roof assembly.... The solar -powered vapor drive peaks at about noontime. ... While the space conditioning system (cooling plus dehumidification) can remove this moisture, it is prudent to eliminate the moisture load by installing a vapor retarding roof underlayment beneath the com- position shingles," Elsewhere, Rudd notes that water vapor can be driven into the roof assembly "whether the roof is vented or not." Ping-Pong Moisture Rudd's recommendation that asphalt -shingled houses with cathedralized attics ii hot humid climates include low-permeance roofing underlayment has been incorpo- rated into the International Energy Conservation Code (see EDIT, June 2003). In a conversation with EDU, how- ever, Rudd noted that recent data have raised new ques- tions concerning solar vapor drive through shingles. "Inn Houston, we saw that moisture flow, but we weren't able to measure the quantity," said Rudd. "We were get ting really high dew points when the sun came out, but then by end of day the plywood was very dry. Later, moisture would find its way back up to that really dry wood. We thought.it was wise to recommend the use of low -perm underlayment." Later, Rudd was surprised to discover that the same phenomenon that he observed in humid Houston was also occurring in Phoenix, where asphalt shingles are rarely wet, "At this point we are not really sure what's going on. We've seen the same phenomenon in vented and tunvented roof assemblies, in both humid and dry climates. We're not saying that we were wrong that moist -u xe is coming through the shingles, but at flus point we're not sure you need to go through the expense of installing low -perm tmderlayment. Actually we have never been able to quantify the amount of moisture that is coming through the roof. We see the moisture pulse, and we believe that some amount of moisture is com- ing through, but when all is said and done, we don't really have proof of the quantity of moisture that comes through the roof. That is still not known" According to Rudd, the daily moisture pulse may rep - For subscriptions call 1.800.638.8437 or visit our Web site at www.aspenpublishers.com February 2006 Energy Design Update® resent a quantity of water botuzcing in and out of the roof sheathing: "Additional testing has shown us that the moisture pulse—what we thought was a significant moisture pulse it turns out that a lot of that is mois- ture that is absorbed and desorbed every day from the roof sheathing. I've heard john-Straube call it'pivnlg- pong moisture."' Reached by phone, john Straube, an assistant professor of civil engineering at the University of Waterloo, gave credit to john Timusk for coiling the term "ping-pong moisture." Straube agreed with Rudd that the source of the moisture pulse observed in some roof assem- blies remains unknown. "Somehow, the moisture must be getting recharged periodically," said Straube. Sue Roaf, an architecture professor at Oxford Brookes University in England, has produced a second edition of Ecohouse, her 2001 book on residential green building (see Figure 4). Revised with the help of her two co-authors, Manuel Fuentes and Stephanie Thomas, the new edition, Ecohouse 2, is subtitled "A Design Guide." The book, though flawed, is a valuable introduction to green build- ing principles. One of the houses profiled in Ecohouse 2 is Roaf's own house. Built in 1995 at a cost of $116 per square foot, Roaf's home includes triple -glazed windows, a 4 -kW photovoltaic (PV) system, and 54 square feet of solar thermal collectors. Because Raaf has a deep -green perspective—at one point Roaf writes that "'modern buildings' are literally destroying the planet"—the book favors traditional over irmovative building practices. Design Guidance For the most part, Ecohouse 2 lives up to its billing as a design guide. The book provides advice on insulation thickness, thermal mass, ventilation, rock -bed volume, and solar collector sizing: ® "Within the UK, as a rule of thumb, 150 mm [6 inches] of insulation in walls, 250 mm [10 inches] in roofs and, say, 100 mm [4 inches] expanded poly- styrene under a concrefe ground floor are considered to result in a'superinsulated' house." ® "A simple rule of thumb to use when sizing mass in a very passive building, designed to minimize heat- ing and cooling loads, is that the optimal depth of mass for ditunal use is 100 mm [4 inches] for each exposed surface." "Otherwise the moisture level would dwindle over time. It isn't clear that it is exterior moisture—it could be interior moisture that gets dragged back into the roof assembly every night." Until further research puns down the source of the moisture, Straube agrees with Rudd that builders installing cathedralized attics ill hot humid effinates should stick with low-permeance roof- ing underlayment. "Field Performance of Unvented Cathedralized (UC) Attics in the USA," by Armin Rudd, was published in the October 2005 issue of the journal of Building Physics. For more information, contact Armin Rudd, 726 Maple Street, Arniville, PA 17003; E-mail: arudct@buildiiigseience.com. • "For a well-designed house ... most problems of air quality will disappear when the air change rate is 0.2 air changes per hour.... Humidity control can be achieved with a rate of 0.3 air changes per hour or more." • "The rock bed volume should be 0.6 cubic meters per Figure h. Sue Roaf's Ecohouse 2. A Design Guide is an introduction to green residential construction, For subscriptions call 1-800-638-8437 or visit our Web site at www.aspenpublishers.com ILI s 4 4 • } +� kA ,,,_ a �a� � C1- 1� °" �t.i .4 C 5'A z C 999 3'1.. F xFc& 'r' u b Nr — t s 2004 SUPPLEMENT TO THE IRC beyond all edges of the hole. The Steel patch shall be fastened to the web with No. 8 screws (minimum) spaced no greater than 1 inch (25.4 mm) center -to -center along the edges of the patch, with a minimum edge distance of 0.5 inch (12.7 mm). Section 8804.3.6.1 Add - new section as shown: (RB156-03104) R804.3.6.1 Holes exceeding limits. Where the depth of the hole exceeds 70% of the depth of the web or width of the hole exceeds 10 inches, the framing member shall be replaced or shall be re -designed in accordance with accepted engineering practice by a registered design professional. Section R806.2 Change to read as shown: (RB231- 03/04) R806.2 Minimum area. The total netfree ventilating area shall not be less than 1/150 of the area of the space ventilated except that the total area is permitted to be reduced to 1/300, provided that at least 50 percent and not more than 80 percent of the required ventilating area Is provided by ventilators located in the upper portion of the space to be ventilated at least 3 feet (914 r)lm) above the eave or cornice vents with the balance of the required ventilation provided by eave or cornice vents. As an alternative, t he n et f ree c rocs -ventilation a rea m ay b e reduced to 1/300 when a vapor barrier having a transmission rate not exceeding 1 perm (57.4 mg/s.m2.Pa) is installed on the warm -in -winter side of the ceiling. Section R806A Add new section as shown: (EC48- 03/04) �I R806.4 Conditioned attic assemblies: Unvented �1! conditioned attic assemblies (spaces between the ceiling joists of the top story and the roof rafters) are permitted under the following conditions: No interior vapor retarders are installed on the ceiling side (attic floor) of the unvented attic assembly. 2. An air -impermeable insulation is applied in direct contact to the underside/interior of the structural roof deck. "Air -impermeable" shall be defined by ASTM E 283. Exception: in zones 26 and 313, insulation is not required to be air impermeable. 3. In the warm humid locations as defined in Section N 1101.2.1: a. For asphalt roofing shingles: A 1 -perm (57.4 mg/s - m2 - Pa) or less vapor retarder IRC -50 (determined using Procedure B of ASTM E>_�: 96) Is placed to the exterior of the structural roof deck; i.e., just above the roof structural,".,., sheathing. b. For wood shingles and shakes: a minimum `a continuous 114 -inch (6 mm) vented air space.;;;; separates the shingles/shakes and the roofing felt placed over the structurai sheathing. 4. In zones 3 through 8 as defined in Section.`!` N1101.2, sufficient insulation is installed to maintain the monthly average temperature of the.:;;;. condensing surface above 45°F (70C). The'. condensing surface is defined as either the,::; structural roof deck or the interior surface of an air- impermeable insulation applied in direct contact to the underside/interior of the structural roof deci% "Air -impermeable" is quantitatively defined by ASTM E 283. For calculation purposes, an interior:;;'. temperature of 68"F (20° C) is assumed. The..;' exterior temperature is assumed to be the monthly';_ average outside temperature. Section R808.1 Change to read as shown., (EC48-1.1 03/04; EL3-03104) R808.1 Combustible insulation. Combustible insulation.:. shall be separated a minimum of 3 inches (76 mm) from:;_ recessed luminaires, fan motors and other heat -producing``; devices. Exception: Where heat -producing devices are listed for lesser clearances, combustible insulation.:: complying with the listing requirements shall be. separated in accordance with the conditions stipulated. in the listing. Recessed luminaires installed In the building thermal envelope shall meet the requirements of: Section N1102.4.3. CHAPTER 9 ROOF ASSEMBLIES Section R905.1 Change to read as shown: 03/04) R905.1 Roof covering application. Roof coverings sh be applied in accordance with the applicable provisions this section and the manufacturer's installati, instructions. Unless otherwise specified in this sectio roof coverings shall be Installed to resist the componE and cladding loads specified in Table R301.2(2), adjust for height and exposure in accordance with Tat R301.2(3). S 0 rd VIkM 1 -10111 WAI .F®.f ME.NTE.RPRLS`ES LLC This will confirm Elk premium roofing products have been approved for use with polyurethane spray -in-place foam manufactured by Foam Enterprises, LLC since September 9, 2003 and carry the full limited warranty provided the installation requirements are followed. ➢ FE 1005 FE 110, FE 3031.7 (effective 9/9/03) ➢ FE 148, FE 158, and FE 168 (effective 5/26/05) INSTALLATION REQUIREMENTS 1. All structural roof work including decking/sheathing is in place and in compliance with local codes. 2. The spray -in-place foam is applied in accordance with the manufacturer's specifications and guidelines to the underside of the roof decking/sheathing and complies with local codes. 3. Apply Elk starter strip, Elk hip and ridge shingles, and Elk field shingles in accordance with the recommendations printed on each bundle wrapper. Elk hip and ridge shingles will carry the limited warranty period applicable to the Elk f eld shingles. 4. Elk will not be responsible for any deficiencies or movement of the roof deck, manufacturing defects in the fasteners resulting in their failure to perforin; and/or improper application of the substrate or Elk fiberglass shingles. 5. It is the responsibility of the design professional to examine the need for structural ventilation and to ensure interior air quality. For any building, construction must be in compliance with local codes. For our product specifications, limited warranties, or other information regarding Elk premium building products, please contact the Elk location nearest you or visit our web site at www.elkcorp.com. For information regarding the Foam Enterprises products please call 800-888-3342 or visit their web site at www.foamenterprises.com. TBSD-020 R1 12/19105 P.O. Box 500 4600 Stillman Blvd.ELK: 6200 Zerker Rd. P.O. Box 228 Ennis, TX 75-120 Tuscaloosa, AL 35401 Shatter, CA 93263 Myerstown, PA 17067 Toll Free 1-800-945-5545 The Premum Choice 1.800.355-4968 1-800.944-4344 1-866-355-8324 www.eIkcorp.com �WAN ELM MI. tw L -91 - This will confirm Elk premium roofing products have been approved for use with polyurethane spray -in-place foam manufactured by Comfort Foam since March 16, 2000 and carry the full limited warranty provided the installation requirements are followed. ➢ CF 100, CF 110, and CF 300 (effective 3/16/00) ➢ CF 148, CF 158, and CF 168 (effective 5/26/05) INSTALLATION REQUIREMENTS 1. All structural roof work including decking/sheathing is in place and in compliance with local codes. 2. The spray -in-place foam is applied in accordance with the manufacturer's specifications and guidelines to the underside of the roof decking/sheathing and complies with local codes. 3. Apply Elk starter strip, Elk hip and ridge shingles, and Elk field shingles in accordance with the recommendations printed on each bundle wrapper. Elk hip and ridge shingles will carry the limited warranty period applicable to the Elk field shingles. 4. The Elk Corporation will not be responsible for any deficiencies or movement of the roof deck, manufacturing defects in the fasteners resulting in their failure to perform, and/or improper application of the substrate or Elk fiberglass shingles. 5. It is the responsibility of the design professional to examine the need for structural ventilation and to ensure interior air quality. For any building, construction must be in compliance with local codes. For our product specifications, limited warranties, or other information regarding Elk premium building products, please contact the Elk location nearest you or visit our web site at www,elkcorp.com. For information regarding the Comfort Foam products, please call 800-888-3342 or visit their web site at www.comfortfoam.com. TESD 005 R2 12/19/05 P.O. Box 500 4600 Stillman Blvd. 6200 Zeri<er Rd. P.O. Box 228 Ennis, TX 75120 Tuscaloosa, AL. 35401 � Sttafter, CA 93263 Myerstown, PA 17067 Toll Free 1-800-945-5545 The Prenikim Choicem 1-800-355-4968 1 800-944 4344 1-866.355-8324 www.elkcorp.com TECHNICAL CertainTeedffi BULLETIN FIBER GLASS SHINGLES APPLIED OVER UNVENTILATED/INSULATED ROOF DECK'S No. R -201B Date Issued: 10/8/2004 Supersedes: R -201A, 211512001 CertainTeed's United Asphalt Shingle Warranty, including SureStarJM coverage, will remain in force when its fiber glass asphalt shingles manufactured to meet ASTM D3462 are applied to roof deck assemblies (slopes > 2:12) where foam insulation is prefabricated into the roof decic system (often called "nailboard insulation"), where insulation is installed beneath an acceptable roof deck system, or where radiant barriers are installed, with or without ventilation directly below the deck. See intportant restrictions belom • Acceptable roof deck surfaces must consist of either minimum 3/8" thick plywood or minimum 7/16" thick OSB, 1f an alternate deck surface material is being considered, then please contact CertainTeed at the number below. The design professional is responsible for ensuring 1) proper quality and application of the insulation an&or radiant barrier, 2)'provision of adequate structural ventilation and/or vapor retarders as determined to be necessary, and 3) that all local codes are met (particularly taking iirto account local climate conditions). Special attention must be taken if cellular foam, fiber -glass, or cellulose insulations, or other highly. -permeable insulation will be used in an unventilated system, or if the insulatioii/rafter or insulation/joist planes may create an air leak that could lead to moisture transmission and condensation problems. All these important factors and decisions, while not the responsibility of CertainTeed . . Corporation, are critical to assure proper deck system performance. CertainTeed shall not have any liability or responsibility under its warranty for a) Damage to or defects in its shingles caused by settlement, movement, distortion, deterioration, cracking, or other failure of the roof deck or of the materials used as a roofing base over which its shingles are applied, b) Damage caused by the growth of mold or mildew, or c) Defects, damage, or failure caused by application of its shingles not in strict adherence with CertainTeed's written instructions. Roofing Systems Technical Service CertainTeed Corporation Roofing Products Group 1400 Union Meeting Road; P.O. Boa. 1100 Blue Bell, PA 14422 800-345-1145 In regards to residential steep -slope roofing products and shingle manufacturers, there are specific companies that have no implication of exclusions from warranty coverage. This table is a list of all approved asphalt shingle manufacturers with warranties that are not affected from the following exclusions listed in the 2001-2003 Residential Steep -Slope Roofing Materials Guide by the National Roofing Contractors Association: ➢ Defects in, failure or improper application of, roof insulation, roof deck, or any other underlying surface of material used as a base over which the shingles are applied. Application of shingles directly to insulation or an insulating deck without manufacturer's prior approval. *Please note some companies may have one of the two above exclusions listed. They have been noted in italics following the company name, Company Name Products Covered Atlas Roofing Corporation StormMaster LM, StormMaster ST, Pinnacle 40, Pinnacle 30, GlassMaster 25, GlassMaster 25 Alpine, GlassMaster 25 Matterhorn, GlassMaster 20, GlassMaster T-LOK, Chalet, Stratford, Legend, WeatherMaster ST, WeatherMaster 20, WeatherMaster T-LOK, and MOD 90 MSR CertainTeed Corporation Grand Manor Shangle, Carriage House Shangle, Presidential TL, Landmark TL, Presidential Shake (and . AR), Independence Shangle (and AR), Landmark 40 (and AR), Hatteras, Woodscape 40, Hallmark Shangle, *This manufacturer still applies the first Landmark 30 (and AR), Custom Sealdon 30, XT 30 of the two above listed exclusions, (and AR), Woodscape 30, Landmark 25 (and AR), Classic Horizon Shangle, New Horizon Shangle, Hearthstead, Custom Lok 25, XT 25 (and AR), Sealdon 25, Woodscape 25, Firehalt (and AR), Seal King 25, Jet 25, CT 20 and AR), Firescreen Elk Corporation of Alabama or Elle Elk Ridge Crest Vented High Profile Ridge, Ridgecrest Corporation of Texas High Profile Hip & Ridge, Seal -A -Ridge with formula FCX, Z ridge and other Elk Hip and Ridge Shingles, Prestique Plus 40, Prestique Plus 40 with StainGuard, Prestique Gallery Collection, Prestique Gallery Collection with StainGaurd, Prestique 135, Prestique 1 35 with StainGuard, Prestique 30, Prestique 30 with StainGuard, Prestique 30 -MD, Prestique 30 -MD with StainGuard, Prestique 25 Raised Profile, Prestique 25 Raised Profile with StainGuard, Ridgecrest vented high Profile ridge, Z Ridge, Seal -A -Ridge with Formula FLX 2/14/2002 Company Name Products Covered Elk Corporation of Alabama Capstone 40, Capstone 40 with StainGuard Georgia Pacific Corporation Summit III, Summit, Tough -Glass Plus, Tough -Glass, Tough -Glass T -Lack, Premium -25, Aspalt-20, Savannah GAF Materials Corporation Royal Sovereign, Marquis WeatherMax, Timberline 25, Original Timberline, Timberline Ultra, Slateline, *This manufacturer applies the second of Grand Sequoia, Grand Canyon, Country Mansion, the two above listed exclusions. You must Country Estates: all GAF Weather Stopper products, call for prior approval - 800 -ROOT -411. Sentinel Herbert Malarkey Roofing Company Type 202, Dura Seal -20, Type 204 Dura Seal -25, Type 230 Alaskan *This manufacturer still applies the first of the two above listed exclusions. IKO Manufacturing Inc. Chateau, Crowne 30, Cambridge 25, Cambridge 30, Cambridge, 40 AR, Renaissance XL, Aristocrat 25, Imperial Gentry 25, Royal Victorian, Skyline 25, Cathedral XL, Imperial Seal 20, Imperial Glass 20, Regency Marathon 20, 25, 30: ArmourLock 20, Ultra 25 Owens Corning Oakridge 40 Deep Shadow (AR), Oakridge 40 AR Deep Shadow, Oakridge 30 Shadow, Oakridge 30 AR *This manufacturer still applies the first Shadow, Oakridge 25, Oakridge 25 AR, Prominence & of the two above listed exclusions. AR Supreme, Supreme 30, Supreme, Supreme AR Glaslock, Classic & AR, Glaslock PABCO Roofing Products, a Division of Premier Advantage, SG -25/3M Algae Block, GC -20, Pacific Coast Building Products, Inc. Premier -40, Premier 30/3M Algae Block, Premier -25, Premier -25/3M Algae Block *This manufacturer still applies the first of the two above listed exclusions. Tamko Roofing Products, Inc. Heritage 40 AR, Heritage 40, Heritage 30 AR, Heritage 25 AR, Elite Glass -Seal AR, Glass -Seal AR, Heritage *This manufacturer still applies the first 40, Heritage 30, Heritage 25, Elite Glass -Seal, Elite of the two above listed exclusions. Glass -Seal AR, Glass -Seal, Glass -Seal, Tam -Loc Glass, Organic Seal -Down 25, Heritage M40, Heritage M30, Heritage M25 2/14/2002