1818 HOLBROOK AVE B 2023-07-31 - Laserfiche WebLink

• ( .)) . Architectural 2. See Sheet A.03 and Detail 3 on Sheet A.04. It appears that a portion of the existing garage is being converted to habitable space. New living space requires to comply with current residential code and energy code requirements (WSEC R502.1). Plans should show how the space complies with the current energy code requirements. Note that the energy code requires the floor slab to be insulated. See WSEC Table 402.1.1 for insulation requirements and options for existing slabs. Also, plans should provide details to show how the converted basement storage areas meet the energy code requirements. • RESPONSE: Details have been provided in plans regarding insulating the existing slab, insulating below-grade walls and other energy code requirements within the existing garage and basement areas. Details are noted on plans and can be found on page A.04. Architectural 3. It is not clear if the required smoke alarms in the primary dwelling unit and accessory dwelling unit are interconnected in such a manner that the actuation of one alarm will activate all alarms in both the primary dwelling unit and the accessory dwelling unit. If alarms are not interconnected as stated, then wall and floor/ceiling assemblies should be separated in accordance with Section R302.3.1 or R302.3.3. R302.3 • RESPONSE: Alarms will be interconnected and will activate all alarms upon one being activated. Noted on plans page A.03. Architectural 4. See First Floor Plan on Sheet A.03. It appears that the exterior walls in some areas are concrete retaining walls. Plans should provide a typical detail of the exterior walls and show required insulation. See WSEC Table R402.1.1 for insulation requirements for below- grade walls. • RESPONSE: All existing retaining walls or below-grade walls seem to be on existing records. A typical wall detail of such has been provided and noted. Interior insulation details for such walls has been added to plans and noted as mentioned in Architectural 2 response. Architectural 5. Continuing with the previous comment, plans and details should address exterior wall drainage and wall exterior waterproofing of the concrete retaining walls per IRC R405 and IRC R406. • RESPONSE: As mentioned in Architectural 5 response, all exterior retaining walls have been found in existing records. A very small portion of the SE corner is below grade. A typical detail for exterior wall drainage and waterproofing has been added to page A.04 and noted on the plans at the SE corner.