Roof Ceiling Assemblies

When no insulation is used.

Roof ceiling assemblies.

Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Shaft wall limiting heights spans. When insulation is used or 16 406 mm o c. Two types of fire rated construction assemblies pertain to acoustical ceiling systems.

A finish rating is established for assemblies containing combustible wood supports. Channels spaced 12 305 mm o c. I am looking for a 1 hour roof ceiling assembly for wood truss construction. 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.

One hour roof ceiling assembly. 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. 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. Helpful documents and resources for usg s roof assemblies can be found on this page.

Roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements. Find usg product specific cad and revit files. You can use only the specific type size and minimum. All new fire rated roof ceiling assembly files.

Our cad and revit library of design drawings of wall intersections joints and other construction details. Is this possible without using channels and what ul number would i use. Urb concealed grid system and tile. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

No ceiling or suspension system product alone constitutes a fire rated assembly. One hour roof ceiling assembly. Ul tests rate an entire assembly. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

Concrete with cellular steel 3 hr.