10030 DAKOTA WAY 2023-12-07 - Laserfiche WebLink

• 5. 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 distributed between the roof eaves and ridge, and around the building perimeter. 6. The attic spaces should be provided with access openings per IRC Section R807. 7. The house includes a flat roof over approximately one-half of the footprint. This appears to require an unvented roof construction. Details complying with IRC Section R806.5 should be included in the drawings. 8. The project includes exposing the exterior envelope cavities for the entire building. The building is required to be insulated per WSEC Section R503.1.1. Where required, insulation complying with current code should be provided per Table R402.1.1. Attics should be provided with ventilation baffles per Section R402.2.3. 9. The project includes replacement of the existing windows and exterior doors. The required thermal ratings for each type of vertical fenestration should be specified. See WSEC Table R402.1.1. 10.The house is required to have a heating system per IRC Section R303.9. The type and location of the system should be specified. If the system is new, it should be indicated as such in the drawings. Gas appliances are prohibited in the locations specified in Section G2406. 11. The house is required to have a water heating system per IRC Section R306.4. The type and location of the system should be specified. If the system is new, it should be indicated as such in the drawings. Seismic restraints should be provided per Section M1307.2. Gas appliances are prohibited in the locations specified in Section G2406. Structural: 12. The proposed project includes structural work. Structural drawing should be submitted that include framing plans, sections, details, construction schedules, fastening schedules, materials requirements, general notes, special inspection requirements, etc. The drawings should substantiate compliance with the prescriptive requirements of the IRC. See IRC Sections R106.1.1 and R301.1. 13. The project involves removing load-baring walls. Framing plans showing the existing roof construction and the modified load paths are required. The modified load paths should comply with the prescriptive limitations of the IRC. Alternatively, an engineered analysis and design may be performed per IRC Section R301.1.3; sealed and signed drawings and calculations prepared by a professional engineer licensed in the state of Washington are required per RCW 18.43.010, 18.43.020, and 18.43.070. See IRC Section R301.1. 14. Foundations should comply with IRC Chapter 4. Wood-framed construction on foundations should comply with Section R317.1, including clearance per Item 5. 15. Headers should comply with IRC Section R602.7. King and jamb studs should be specified for each header per Section R602.7.5. 16.The proposed project includes the demolition of non-bearing walls. Framing plans for the floor,ceiling, and roof should be provided to substantiate that the walls are not load-bearing. The plans should also 2