Use flat horizontal soffits see figure 3 instead of attaching the soffits to the sloped joists which creates sloped soffits.
1 hour rated roof assembly residential.
In fact there is no.
1 hour wall assembly interek design no.
Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c.
Joint tape and compound vinyl or casein dry or premixed joint compound applied to face.
These listings are short summaries to serve as a.
These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
With 1 25 mm type s drywall screws 12 305 mm o c.
6 usg fire resistant assemblies test certiļ¬cation 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.
Assembly rating 1 hr max loading 1684 lbs.
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.
Type x gypsum wallboard applied vertically fastened with 1 7 8 in.
Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.
Thick x 4 ft.
Is this possible without using channels and what ul number would i use.
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.
Assembly rated class a roof coverings are those that meet class a standards when combined with other elements.
Face layer 5 8 in.
No minimum joist size is given except that it needs to be adequate for structural loads.
Rated from one side and from both sides.
I am looking for a 1 hour roof ceiling assembly for wood truss construction.
I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control.
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.
1 hour exterior wall assembly ul design no.
Ul does not appear to list an assembly as described.
