Roof Ceiling Assemblies

When no insulation is used.

Roof ceiling assemblies.

Roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. 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.

I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Two types of fire rated construction assemblies pertain to acoustical ceiling systems. Find usg product specific cad and revit files. Have a question about assemblies.

Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. All new fire rated roof ceiling assembly files. Helpful documents and resources for usg s roof assemblies can be found on this page. Concrete with cellular steel 3 hr.

Our cad and revit library of design drawings of wall intersections joints and other construction details. You can use only the specific type size and minimum. 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. 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.

Channels spaced 12 305 mm o c. A finish rating is established for assemblies containing combustible wood supports. I am looking for a 1 hour roof ceiling assembly for wood truss construction. No ceiling or suspension system product alone constitutes a fire rated assembly.

When insulation is used or 16 406 mm o c. Urb concealed grid system and tile. Is this possible without using channels and what ul number would i use. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

One hour roof ceiling assembly.