1 Hour Rated Roof Assembly Residential

Assembly rating 1 hr max loading 1684 lbs.

1 hour rated roof assembly residential.

1 hour exterior wall assembly ul design no. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. 6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test. No minimum joist size is given except that it needs to be adequate for structural loads.

Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. With 1 25 mm type s drywall screws 12 305 mm o c. Is this possible without using channels and what ul number would i use. Use flat horizontal soffits see figure 3 instead of attaching the soffits to the sloped joists which creates sloped soffits.

Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. Thick x 4 ft.

1 hour wall assembly interek design no. Joint tape and compound vinyl or casein dry or premixed joint compound applied to face. Face layer 5 8 in. Ul does not appear to list an assembly as described.

1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panel applied perpendicular to resilient channels 24 610 mm o c. In fact there is no. Long cup head drywall nails 8 in. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements.

Gypsum panel end joints located midway between continuous channels and attached to additional pieces of channels 54 1372 mm long with screws 12 305 mm o c. 2 hour exterior wall assembly ul design no. For example shake roofing with a fire retardant treatment rates class b on its own but achieves a class a rating when combined with specified underlying materials such as type 72 roll roofing material. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

A minimum 1 hour fire resistance rating to prevent embers and hot gases from making contact with the joists rafters or trusses or the underside of the roof decking. Type x gypsum wallboard applied vertically fastened with 1 7 8 in.