Loading...
Allbery Alt Design.pdf10 C. 18c}0 CITY OF EDMONDS 121 5TH AVENUE NORTH • EDMONDS, WA 98020 • (425) 771-0220 • FAX (425) 771-0221 Website: wwwdedmonds.wa.us DEVELOPMENT SERVICES DEPARTMENT Planning • Building • Engineering February 20, 2009 Sandra and Lee Allbery 900 Walnut Street Edmonds, WA 98020 RE: Use of Comfort Foam 178 Insulation System at 900 Walnut Street, Edmonds Dear Mr. and Mrs. Allbery: GARY HAAKENSON MAYOR 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 LIS -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 900 Walnut Street, Edmonds with the following conditions: • The product must be installed in accordance with the manufacturer's installation instructions. • 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. Sincerely, *k_ Ann Bullis, CBO Building Official • Incorporated August 1I, 1890 • Sister City - Hekinan, Japan February 19, 2009 City of Edmonds Attn: Building Dept. We have been informed by our building inspector, that you are requesting a new technology permit application for a change of materials for our insulation installation. We have provided you with 28 pages of documentation of the usage of this product for non -ventilated construction. The main reason for our desire to change to a non -ventilated system, is due to the fact the insulated properties of our approved plans did not allow -,us to have our required air space and meet our required ceiling insulation. P v"k `LR - specifically around the perimeter of the building and the vault space does not allow us to get anywhere near the R-38 j -Value required insulation. Due to this fact, in an effort to meet the insulated code while also to conserve energy in the home, we have opted for the non -ventilated attic space. We realize that this requires a mechanical ventilation to help control humidity and air changes. We have proposed adding a time clock to the bathroom fan turning it into a whole house fan for the 490 sq. ft. that this portion of the home consists of. Thank you for your cooperation. Sandra Allbery Homeowner @ 900 Walnut St. Edmonds Permit # 2008-0771 RECEIVED FEB 19 2009 DEVELOPMENT SEsvICES cTfi. CITY OF EDMON©S 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 Testing 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 Swill 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.iccsa_fe.ona. 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 (%) X90 ASTM D 6226 Initial k -factor (Btu inle hr °F) 0.165 (R 6.1M)k"" 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 (LlslmZ @ 75 Pa) 0.000025 ASTM E 2178-01 Air Leakage (Uslm2 @ 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 Aae 14 Days Uo°F1 +0.07 to —0.21 % ASTM D 2126 -These physical property values are typical for this material as applied at our development faaRy 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 guidegnes solely for the purpose ofavaluation. Physical properly specifications should be determined from actual production material. The above data was collected from samples prepared using the following equipment configuration: • Gusmero H-20135 propordoner set at 1:1 volume ratio with 50 ftof heated delivery hose • Gusmero QX -7 spray -gun configured with a #1 mire module and #70 PCD and/or GAP spray -gun configured with a #1 mix chamber • Process temperature settings: Isocyanate f30°F; Resin 130'F; Hose 1307F Process pressure; 1000 psig minimum while spraying COMFORT FOAM 178 has shown acceptable on-site performance with temperature settings in the range of 110W - 130"F for Isocyanate, Resin and Nose. Everyjob site and set of ambient/substrate conditions are different- therefore, onesetof process settings may not work for every situation. Itis the responsfbililyof fhe appLcetorto evaluate the on- site conditions and then determine the appropriate SPF reactivity and process seNings. —rhe data chart shows the R -value of this insulation. "R"means resistance to heat How. The higher the R value, the greater the insulating power. Compare insulation R -values before you buy. Thereare other factors to consider. The amount of insulation will depend upon the climate, the type and size of yourhouse, and the fuel use patterns and family size. If you buy too much insulation it coil1 cost you mono than what you will save on fuel. To achieve proper R -values, itis essential that this insulation be installed properly. GENERAL INFORMATION: 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 1 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.orC1 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 54-80°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 BASE Polyurethane Foam Enterprises LLG Memo To: To Whom It May Concern From: Jim Andersen, Technical Applicators Manager CC: B. Schenke, K. Frauenkron Date: 8/112006 iRw Non -Vented Construction 13 ® BASF 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 wall junctions must be air fight 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. 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 BetterTm Minneapolis, MN 55441 Telephone: (763) 558-3268 Fax: (783) 558-0845