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Micah Diamond Carriage Houses Northwest Plan Check Number: B2109-049, First Building Review October 13, 2021 Architectural 1. The plans should reference the current deign code. R106.1.1 2. A handrail should be shown at the stairs on the floor plan in compliance with Section R311.7.8 3. Plans should provide code complying stairways. Address tread and riser dimensions per type of stairway. (R311.7) 4. Plans should show a 6-mil black polyethylene ground cover (vapor retarder) overlapped 6 inches minimum at the joints placed beneath the concrete slab on grade per IRC Sections R506.2.3. 5. Plans should include a note to specify the garage floor to be slopped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway. R309.1 6. Plans should show landings at doors. The width of each landing should not be less than the door served and a minimum length in the direction of travel of not less than 3 feet. R311.3 7. See Typical Wall Section on Sheet 3. The detail should show the grade to be sloped to drain surface water away from foundation walls. R401.3 Structural 1. It is not clear if the building is designed with braced walls or shear walls. Braced wall type, location, or length are not specified. Buildings that are not provided with braced wall lines in accordance with IRC Section R602.10 and Table R602.10.1 should have a lateral -force -resisting system designed to resist the forces specified in IRC Section R301. A Washington State licensed professional engineer should stamp structural calculations. Plans should be consistent with engineer's calculations and a complete shear wall schedule and location of shear walls should be shown on the plans. 2. Provide fastening schedule. Refer to IRC Table R602.3 (1) and list applicable connections on the drawings. 3. See Typical Wall Section on Sheet 3. The plans should specify the foundation to be founded a minimum of 18" below grade for frost protection per EMC Section 16.01.010(J). 4. Plans should provide framing information and details for the stairs. Framing information for the landings and supporting framing should be provided. R106.1.1 5. See Sheet 1. It appears that stud height exceeds 10 feet at the exterior wall of the stairway location. Provide wood -stud wall engineering analysis for bearing walls over 10 Feet High. Table R602.3(5) 3200 Cedar Street © 425.257.8810 O everetteps@everettwa.gov Everett, WA 98201 425.257.8857 fax everettwa.gov/permits Page 2 of 3