2713 MAPLE ST A & B 2024-01-08 - Laserfiche WebLink

Mr. Ismail Mohammad 2713 Maple Street, LLC Plan Check Number: B2101-051, First Building Review May 3, 2021 The proposed building has been adjusted to a Duplex, assemblies and wall details have been added to Sheet A4 Sections per the IRC. 11. Detail D2/Sheet 5 shows a step in the Upper Floor assembly. The wall between the floor levels is required to be a one-hour fire partition. See IBC Section 420.2. Proposed wall assemblies have been added to Sheet A4 Sections per IRC. 12.The Upper Floor units require minimum 20-minute fire-rated doors accessing the corridor. See IBC Table 716.5. The proposed building has been adjusted to a Duplex; IBC is not applicable. 13. The following comments should be addressed for the"Floor/Ceiling Wood-Framed"detail on Sheet 5: a. Detail D2/Sheet 5 appears to show that the existing Upper Floor framing consists of manufactured wood joists instead of solid 2x framing. The specified detail is not sufficient for this condition. An alternate floor assembly is required. b. The floor assembly is required to comply with the sound transmission requirements of IBC Sections 1207.2 and 1207.3. The proposed assembly does not comply. The interior existing Floor/Ceiling Wood-Framed framing will be demolished and replaced by a proposed floor framing, see Sheet A4 Sections for floor assemblies and Sheet A2 Floor Plans for proposed framing notes and structural notes. 14.The building consists of 1-hour floor and walls assemblies supported by other construction. Note that walls are not continuous to the foundation at multiple locations. The supporting construction is required to have a minimum 1-hour construction. This includes but is not limited to walls, posts, beams, and floor joists. The note in the "Floor/Ceiling Wood-Framed"detail stating "walls, posts, and beams to be 1 hr fire rated" is not sufficient. Details for the required construction should be provided. Construction requiring 1-hour fire protection should be clearly shown on the plans. Details should reference listed tested assemblies per IBC Section 703.2 or should comply with IBC Section 721 or 722.6. See IBC Section 708.4. Details for the proposed assemblies and 1-hour construction has been added to sheet A4 Sections and sheet A6 Details per IRC. 15. Continuing with the previous comment, the stairway and hallway extend over the Lower Floor bedroom for Unit U1. The required construction, including supporting construction, should be shown in this area. See IBC Sections 107.2.1, 708.4, and 1011.7.3. The proposed design layout has been adjusted to a Duplex, see sheet A2 Floor Plans for structural and construction notes. O3200 Cedar Street © 425.257.8810 O everetteps@everettwa.gov Everett, WA 98201 425.257.8857 fax everettwa.gov/permits Page 3 .