2715 MAPLE ST A & B 2024-01-08 - Laserfiche WebLink

Mr. Ismail Mohammad 2713 Maple Street, LLC Plan Check Number: B2101-051, Second Building Review February 10, 2022 9. Detail 1/A6 specifies a guard opening size of 4.375 inches. The guard should not allow passage of a 4-inch sphere, as indicated in the "Building Code Summary" on Sheet A0.0. In addition, the reference to "SRC" standards should be removed. See Section R312.1.3. 10. Sheet A6 provides an Energy Code Summary. The following comments should be addressed: a. The energy credit section includes a fuel normalization credit per the 2018 edition of the WSEC. If the project is intended to comply with this edition, the required number of energy credits is 6.0 per WSEC-18 Section R406.3. Note that the selected credits comply with the 2015 edition and require revision to the 2018 edition. Alternatively, the design should comply with the WSEC-15 provisions; the fuel normalization credit does not apply to this edition, and an additional 1.0 credit is required. See also General Comment 1. b. The selected credits include improved thermal performance values, including but not limited to UMAx=0.28 for vertical fenestrations. The typical values listed should be revised for consistency. c. The summary should specify UMAx=0.50 for skylights. d. The construction drawings and summary specify continuous R-10 under -slab insulation. This is not substantiated by the "Typical Wall Section" in 'Sheet 4/6" on Sheet A1.2. The design should be revised. e. The construction drawings and summary specify R-49 roof insulation. This requires a minimum framing depth of 15.5 inches per WSEC Table A101.4. An additional minimum one inch is required for the venting baffles per Section C/A4. Note that the depth of the existing roof framing should be specified. f. The selected credits include efficient HVAC and water heating systems. The minimum performance requirements for these systems per WSEC Table 406.2 should be specified. 11. The Demo and Proposed Plans on Sheets A1.3 and A2 should specify replacement of the skylight glazing with new skylights providing the minimum required thermal performance per the Energy Code Summary on Sheet A6. See WSEC Table R402.1.1. 12. Sheet A6 shows clearances for the window types above the adjacent walking surfaces. See Section R308.4. The following comment should be addressed: a. Type "A" should specify tempered glazing per Section R308.4.2. b. Type "C" should specify tempered glazing per Section R308.4.7. c. Type "Y should specify a minimum 36-inch clearance to the glazed surface or tempered glazing per Section R308.4.6. 13. The roof details should comply with the ventilation requirements of IRC Section R806 and WSEC Section R402.2.3. Include a calculation for the minimum required ventilation area in the drawings. The vents should be equally along the roof, and between the upper and lower sides of the roof. The vents should not penetrate through the fire -rated east wall, including the parapet, per Table R302.1(1). 14. The Second Floor Plan on Sheet A2 shows the whole house exhaust fans located in the laundry closets behind closed doors. The doors should be provided with vents capable of allowing the minimum required air flow per Section M1507.3.4.4. Alternatively, the exhaust fans should be located in common dwelling spaces not obstructed by doors. See Sections R303.4. 3200 Cedar Street © 425.257.8810 O everetteps@everettwa.gov Everett, WA 98201 425.257.8857 fax everettwa.gov/permits Page 4 of 6