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20070640.pdfov� ED City of Edmonds 'a PLAN REVIEW COMMENTS ...... BUILDING DIVISION FS r. 18 (425) 771-0220 DATE: December 3, 2007 TO: Erik Bredberg AD Shapiro Architects FAX: 425-778-3032 FROM: Ann Bullis, Assistant Building Official 4w— RE: Plan Check #2007-0640 Project: New Townhouses (Building A) Project Address: 23004 Edmonds Way During review of the proposed plans for the above noted project, it was found that the following information, clarifications or changes are needed. Provide written responses to each comment and where changes can be found on the plans. Please resubmit to Marie Harrison, Permit Coordinator. 1. Previous item 2: On the "existing conditions" plan, the label is missing for the dark dashed line between parcel B and parcel C. The same line is also not labeled on the site plan. Please revise. .2. Previous item 3: Clearly note on 20/A0.1 that this plan is for reference only for "future" lot perimeters and that the subdivision must first be approved by the City of Edmonds. 3. Previous item 4: The Building Enclosure letter submitted must still be signed by the architect. 4. Previous item 5: Label the type of retaining walls shown at the rear of building E (e.g. concrete, keystone, etc.). Show the location and extent of the 3' high rockery now shown at the rear of building F. Coordinate civils, site and landscape plans to show all retaining walls and rockeries, and crass reference construction details on both site and civil plans. Detail I6/A1.2 is for walls up to 4 feet high, while some walls shown on the site plan exceed this height. Revised detail and provide structural calculations for walls over 4 feet high. 5. Previous item 7: Since you are now designing to the IRC (confirmed with architect 11/29107), revise code information on Sheet A0: a. 2003 IRC, 2003 UPC, 2004 WSEC, and 2003 VIAQ b. R3/U occupancies c. Type of heating system (forced air furnace, in -floor hydronic, etc.). 6. Previous item 9 & 11: Show the cantilevers on the east side of building A, and dimension setback to cantilever. Show the decks and cantilevers on the west side of building A. Dimension the encroachment of the patios into the east setback area. Some setbacks appear to have been added to the future lot perimetcrs plan, but they need to the on the site plan. 7. Provide construction detail showing how prefab concrete stair treads are to be installed. 8. South exterior wall of Building A (previous item 15): a. An imaginary property line needs to be placed between buildings A and B. Assuming it will be placed per the "future lot perimeters plan", exterior walls of both buildings must be 1 -hour fire resistive construction with no openings permitted (IRC R302). b. Clearly show on Sheet A2.1 and A2.2 that the north exterior wall of the building is 1 - hour fire rated, and cross reference construction details with listed and tested assembly. c. The exterior wall symbol on the wall key Sheet A2.1 is not the same symbol as shown on the floor plans. Please coordinate. Also, the reference to 18A/A9.1 is the incorrect wall type. It should reference wall types B1 and D1 for 1 -hour walls for both types of siding. d. The north elevation view on Sheet A3.1 shows both stucco and cement fiber siding. Clarify where one siding stops and the other starts. c. Revise construction details D/A9.1 and B/A9.1 to show exterior 5/8" Denshield Fireguard over the exterior sheathing per GA WP3615 on 12/A0.1. f Provide a details of the roof termination and trim on the exterior side of the wall. Show where 2 & 3/A4.2 apply. Exterior wall trim cannot encroach closer than 24" to the imaginary property line. 9. At rear patio door of each unit, there needs to either be a 36" minimum landing in the direction or travel or a complying step (IRC R311.4.3). Clearly show/dimension on the unit floor plans. 10. Townhouse separation walls (previous items 12, 15): a. On Section 16/A4.1 change reference detail number for lid to 4/A4.2. b. On detail 4/A4.2 label the roof joists so it is clear that the walls are extending to the underside of the structural roof sheathing. Also, revise the gyp at the underside of the roof sheathing so it starts at the edge of the double top plate (the structural sheathing should be continuous over the double top plate with no gyp in between). c. Revise 1/A0.1 notes to reference 1 -hour exterior walls instead of fire barriers. The town house separation would be two 1 -hour exterior walls. Also, clarify with notes that you are using IRC R317.2.2 exception instead of a parapet. Change R2 occupancy to R3. d. On Section 16/A4.1 the gyp must cover the rim joists of each wall. e. Detail18C/A9.1: i. Each wall must be a 1 -hour wall, therefore 5/8" type x gyp (or whatever materials the listed and tested assembly requires) will be required on the air space side of each wall. The listed and tested assembly IBC Table 720.1(2) 16-1.1 has been tested for fire exposure from the inside only which does not meet IRC R302.1. Both of these walls must be tested for fire exposure from both sides, so a new assembly must be provided. Also, the walls together must have an STC rating of 45 or more (IRC Appendix K). ii. Fire blocking is required at the floor lines and roof -ceiling line of the air space created between the walls. Show the fire blocking and call out the material (IRC R602.8). You may want to coordinate with your contractor since this can be tricky to build. iii. Clarify that both fire rated walls will extend to the underside of the structural roof sheathing. iv. Clearly show and note on the site plan that no utilities will pass through the common foundation and townhouse separation walls. V. On the roof plan A2.1, show that no penetrations are permitted for a distance of 4 feet on each side of the two walls. 11. Previous item 12: Unable to find fire stopping details on the plans. 12. Detail 9/A4.2: The perimeter of the handrail measures more than 6 1/4" therefore it must meet R311.5.6.3 #2. Clearly dimension handrail to show it meets all requirements of this exception. 13. Detail 14/A4.2: Dimension the height of the guard above finished floor/grade. 14. Detail 7/A1.2: Revise to show the handrail end returned at the bottom of the stair. Page.2 of 3 15. Previous item 13: Provide floor areas for each dwelling unit. 16. Previous item 18: Still waiting for letter from geotechnical engineer. 17. Previous item 19: Still waiting for Special Inspection and Testing Agreements. These must be submitted prior to permit issuance. 1 S. Detail 2/A9. 1, clearly note that all wood in contact with concrete must be pressure treated. 19. Overflow drains are required in addition to the roof drains. See IRC R903.4.1 for requirements. Show on roof plans and provide details. 20. Provide structural calculations for metal grate guard at decks to show that it meets loads in Table R301.5. (Details on A4.2) 21. See attached comments from City Consultant. Provide written responses to each comment and where changes can be found on the plans Page 3 of 3 Eagle Eye Consulting Engineers, P.S. PO Box 523 Olalla, WA 98359 hoytjeter@centurytel.net 360 874 0562 Fax 360 874 0591 To: Marie Harrison City of Edmonds Edmonds, WA 98020 Re: Valhalla Building A 23004 Edmonds Way #A Edmonds, WA 98020 Plan Review # 20070640 Date: November 15, 2007 EECE # EDM 07-30 (2) Structure Occupancy per drawings Occupant load fact Gross Area S.F. Lower Floor R2 200 255 First floor R2 200 2581 Second floor R2 200 2581 Total 51.17 Garage S2 200 1856 Total 7273 Deck 904 Grand total 8177 Sprinkler YES The above referenced project is in the process of plan review for compliance with Edmonds ordinances and applicable codes. The following comments, deficiencies/corrections must be addressed prior to completion of plans review and subsequent issuance of permits. Provide revised plans and calculations along with a written response to each of the items listed below to facilitate a shorter back -check time. SCOPE OF REVIEW The scope of this review is for the Structural, Ordinance, Energy and Barrier Free requirements of this project. All features were checked only to the extent allowed by the submittals provided. All portions of this project are assumed to meet or will meet other departmental requirements, conditions and concerns before permit approval. Page 2 of 4 EECE#: EDM 07-30 (2) Valhalla Building A STRUCTURAL COMMENTS No Comments at this time. ARCHITECTURAL COMMENTS General 41. Structural members supporting occupancy separations shall be the same rating as the occupancy separations. Please add details and clearly show this on the drawings. This still has not been modified as required per code. Please modify the drawing to show the columns in the wall to be individually protected as required per IBC 714.2.1. IBC 714.2.1 2, 42. AOR, please clearly show the required fire blocking at the stairway as required per 717.2.2 The response state this is shown on sheet A4.1 but this sheet appears not to show the required fire blocking as required per sections 717.2.2. Please modify accordingly. IBC 717.2.2 3. 43. AOR, based off the layout it appears there will penetrations in the firewall walls. For example, the kitchen areas. Please add the required information for the member penetration in rated assemblies. For example, between the kitchens. IBC 712.3.2 This appears not to be addressed at this time. Please modify the drawings accordingly. Sheet A2.2 Unit Al & A2 Floor Plans (This sheets has been changed to reflect just the Al Floor plans) 4. Please add window 101D (next to the entry door) to the Window schedule, and specify that it is to be safety glazing. Sheet A2.3 Unit A3 & A4 Floor Plans (This sheet has been changed to reflect the A2 Floor plans) 5. 60. Please note the window next to the entry door to be safety glazed or justify that it is not required. IBC 2406.3 This window does not appear in the Window schedule. Please modify accordingly and specify that it is to be safety glazing. Sheet A2.5 Unit A4 Floor Plans (New ,Sheet) 6. Please add window 104 (next to the entry door) to the Window schedule, and specify that it is to be safety glazing. Page 3 of 4 EECE#: EDM 07-30 (2) Valhalla Building A Sheet A3.1 7. Please check all window references to the plans. It appears that some unit windows are missing from the schedule, such as Unit A1 -window 101D, Unit A4 -window 104, etc. Sheet A4.1 Building Sections 8. Wall Section: It appears that this detail is to be #17. It is currently called out as a duplicate `18'. Please modify accordingly. Sheet A7.2 (New Sheet) 9. Door Schedule: Please add to the door schedule which door type is to be used at each door. Three door types are shown in elevation. Sheet A9.1 Details 10. 69. Detail 2: EOR, please provide an analysis for the wood ledger. This does not appear to be addressed at this time. Ventilation and Indoor Air Quality Sheet A2.2 Unit Al & A2 Floor Plans (This sheet has been changed to reflect the Al Floor plans) 11. 73. Please clarify how the dryer will be vented to the exterior on the drawings. It is not clear how this will be done based off the information submitted. This does not appear to be addressed at this time. Sheet A2.3 Unit A3 & A4 Floor Plans (This sheet has been changed to reflect the A2 Floor plans) 12. Please specify the required fan in the First Floor bathroom 13. Please clarify how the dryer will be vented to the exterior on the drawings. Sheet A2.4 Unit A3 Floor Plans (New Sheet) 14. Please clarify how the dryer will be vented to the exterior on the drawings. Sheet A2.5 Unit A4 Floor Plans (New Sheet) 15. Please clarify how the dryer will be vented to the exterior on the drawings. 16. Please specify the size of fan in first floor water closet. Page 4 of 4 EECE#: EDM 07-30 (2) Valhalla Building A Energy code No Comments at this time. Additional corrections may be required following receipt of corrections and additional information as requested. Your plans are being reviewed concurrently with the Building Department, Fire Department, Zoning Department and Public Works Engineering. Changes, clarifications or additional corrections may be required subsequent to the Building Department plan review when comments are received, from the other concerned departments. Should you have any inquiries regarding this letter, please contact Hoyt Jeter at (360) 874- 0562 between 8:00 a.m. and 5:00 p.m. Hoyt Jeter, P.E. President