2421 81ST PL SE 2022-10-07 - Laserfiche WebLink

• • 5. The bedrooms should have emergency egress openings. The minimum opening dimensions and area, and maximum bottom sill opening height of the floor, should be specified. Structural modifications appear to be required; see comments below. See IRC Section R310. 6. A note should be included requiring the alarms to be hardwired, interconnected, and provided with back- up battery power as required. Alarm clearances should comply with Section R314.3 Item 4 and Section R314.3.1; additional performance requirements should be specified as needed. See IRC Sections R314 and R315. 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. 8. 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. Structural: 9. 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. 10. 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. 11. The proposed project includes the demolition of bearing and non-bearing walls. Framing plans for the floor, ceiling, roof, and foundation should be provided to substantiate the existing and modified load paths. The plans should also include a note requiring the contractor to verify the walls are not load bearing prior to demolition. See IRC Section R301.1. 12. Details for the construction of the new walls, including infills in the exterior walls, should be included. The details should specify connections for the top and bottom framing plates to the existing structure. See IRC Sections R106.1.1 and R301.1. 13.A general fastener schedule should be provided pet,\IRC Table R602.3(1)r.Providing a reference to this fable in the drawings does not satisfy this requirement. In addition,the make and model of proprietary hardware should be specified where used for connections. Review of your project will be performed in the order received once the required documentation has been submitted. Please let me know if you have questions. 2/ 3