3229 WETMORE AVE 2018-01-02 MF Import

• a Water-resistant gypsum sheathing should be specified for the stair landings where one -hour fire -protection is required. A weather resistive barrier should be installed over this GWB per Sections 1402.1 and 2511.1. 9. A class C roof should be specified on the plans. Table 15-A Exiting The stair rise (4 inches min, 7 1/2 inches max) and run (10 inch minimum) should be shown on Detail 1/11. Section 1006.3 All stair enclosure doors shall be specified to have a temperature rise not exceeding 450 degrees. Section 1009.3 3. The ceiling of the stair enclosures is required to be a complete one -hour fire -resistive assembly, otherwise the walls of the enclosures should continue to the underside of the roof sheathing. Section 711.2 4. The attic access hatch within the stair enclosures are not permitted and should be relocated to another area. Section 1009.3 5. All openings in the exterior wall of the building which are within 10 feet of unprotected openings in the interior stairways should be protected with fire assemblies having a 45-minute rating. These assemblies should be fixed, self -closing, or automatic closing. Note that the garage door would also have to comply with this requirement. Openings in the top floor are exempted. Section 1006.11 6. The siding shown within the stair enclosures should be specified to have a Class I Flame Spread Classification per Table 8-A and Section 804.1. Accessibility Details of the grab bars at the Type A unit bathtub should be provided. A grab bar is required on the end wall over the drain, and 2 bars are required at the back wall. Section 1106.11.9.3 2. 'Be in -tub seat requirement per Section 1106.11.9.2 should be shown on the plans for the Type A unit.