1929 VIRGINIA AVE 2023-10-23 - Laserfiche WebLink

k. [exterior walls] The exterior walls should have fire-rated construction per IRC Tables R302.1(1) or R302.1(2). The exterior walls should be covered with a weather-resistant materials per IRC Section R703, including a barrier per Section R703.2. I. [roof] The roof should be covered per IRC Section R903. Asphalt roofing should include an underlayment complying with IRC Section R905.1.1 and Table R905.1.1(2). Roof ventilation should be specified complying with IRC Section R806; a minimum 1"air gap should be provided between the insulation and roof sheathing per Section R806.3. Roofs with attic spaces should provide access hatches per IRC Section R807. m. [crawl spaces] Crawl spaces under buildings should be provided with ventilation per IRC Section R408.1 (WAC). Access hatches should be provided complying with IRC Section 408.4. The grade should comply with IRC Section R408.6. n. [insulation] The exterior of the building should be insulated to provide a thermal envelop complying with the 2015 WSEC. The thermal rating (i.e., Rmin, Umax) should be specified for each component of the building (e.g., walls, windows). Prescriptive values should be specified per WSEC Tables R402.1.1 or R402.1.3. The envelop should include the footings, below-grade walls, and slabs-on-grade. Alternatively, the thermal envelop may be designed per the Total UA method of WSEC Section R402.1.4; calculations substantiating the design should be included in the submittal documents. o. [energy credits] The building should be designed to comply with the additional energy efficiency requirements of WSEC Section R406. The architectural drawings should include a schedule listing the selected energy credits for the proposed project. p. [smoke and CO alarms] Smoke and carbon monoxide alarms per IRC Sections R314.2.2(WAC) and R315.2.2(WAC). Smoke alarms should be interconnected per Section R314.5. Combination alarms are permitted per Sections R314.5 and R315.4. q. [whole house ventilation] Provide a whole house ventilation system complying with See IRC Section M1507.3. The drawings should state compliance with one of the systems specified in Sections M1507.3.4 through M1507.3.7; the requirements for the selected system should be specified in the plans. See IRC Section R303.4 (WAC). Where an exhaust fan is required, the location and exhaust rate should be specified in the plans. r. [heating] The location and type of heating system per IRC Section R303.9 (WAC). Gas appliances are prohibited in the locations specified in Section G2406. Use of space heaters and wood stoves are not permitted as the primary heating system. Solid fuel devices (e.g., wood stoves) should comply with IRC Section R303.9.3 (WAC). s. [water heater] The building should be provided with a system supply hot water per IRC Section R306.4. The location and type of system should be specified in the drawings. Seismic restraints should be specified for tank water heaters per IRC Section M1307.2. 3. Structural Requirements: a. Framing plans, elevations, sections, details, material specifications, structural general notes, and other information as required to specify the proposed construction. The drawings should specify framing sizes, dimensions, spacings, heights, slopes, and orientation as required to clearly define the work. b. Foundation plans, sections, and details showing the building footings and below-grade walls. The foundation material(s) should be clearly specified. The plans should specify the type, size, length, width, thickness, and height of all parts of the foundation. The foundations should be founded a minimum of 18" below grade for frost protection per EMC Section 16.01.010(J). The depth of soil being retained by below-grade walls should be specified.