Roof Ceiling Assemblies

No ceiling or suspension system product alone constitutes a fire rated assembly.

Roof ceiling assemblies. Roof ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum roof support structure and roof assembly including deck insulation and roofing system. A finish rating is established for assemblies containing combustible wood supports. Helpful documents and resources for usg s roof assemblies can be found on this page. Is this possible without using channels and what ul number would i use.

I am looking for a 1 hour roof ceiling assembly for wood truss construction. Find usg product specific cad and revit files. The finish rating is defined as the time at which the wood stud or wood joist reaches an average temperature rise of 250 f or an individual temperature rise of 325 f as measured on the plane of the wood nearest the fire. Shaft wall limiting heights spans.

When no insulation is used. One hour roof ceiling assembly. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Urb concealed grid system and tile.

You can use only the specific type size and minimum. Two types of fire rated construction assemblies pertain to acoustical ceiling systems. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

All new fire rated roof ceiling assembly files. Ul tests rate an entire assembly. Roof ceiling steel framed one layer 5 8 15 9 mm toughrock fireguard c gypsum board or 5 8 15 9 mm densarmor plus fireguard c gypsum panels applied at right angles to resilient or rigid furring channels with 1 25 4 mm type s drywall screws 12 305 mm o c. Concrete with cellular steel 3 hr.

Roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements. Channels spaced 12 305 mm o c. Refer to our roof ceiling assembly documents which includes ul fire rated roof assemblies for easy guidance through the assembly of a roof or ceiling on your next project. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

When insulation is used or 16 406 mm o c.