1 Hour Rated Roof Assembly

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

1 hour rated roof assembly.

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. I am looking for a 1 hour roof ceiling assembly for wood truss construction. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Ul does not appear to list an assembly as described.

Assemblies include ducts dampers lighting or other fixtures in the tested assembly. Ibctable 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

In fact there is no. With 1 2 wood structural panels with exterior glue applied at right angles to top of joist or top chord of trusses with 8d nails. Assemblies are provided in. Urb concealed grid system and tile.

I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. See full report for details. No minimum joist size is given except that it needs to be adequate for structural loads. 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.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. American softwood lumber standard ps 20.

Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. 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. These listings are short summaries to serve as a. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies.

Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. With 1 25 mm type s drywall screws 12 305 mm o c. Concrete with cellular steel 3 hr. Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1.

V337 2 hour interior wall assembly ul design no.