2 Hour Roof Truss Assembly

Fire rated cold formed steel truss assemblies to properly design a building for fire safety building designers must recognize and accurately follow building fire code regulations.

2 hour roof truss assembly.

And technical information disseminating industry news and facilitating networking opportunities for manufacturers of roof trusses wall panels and floor trusses. 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. Pitched or parallel chord wood trusses spaced 24 max. All new fire rated roof ceiling assembly files.

2 hour fire endurance assembly for mpcwt structural floor and roof framing systems educational overview revised 10 2 2017. Achieving a 2 hour floor ceiling assembly from the underside only home articles achieving a 2 hour floor ceiling assembly from the underside only one of our current projects is a change of occupancy where the change will require a 2 hour rating between the main level a 2 occupancy and the r 2 occupancy above. Truss depth shall be 5 1 4 with a min. Layer 3 trusses.

Roof slope of 3 12. Sbca endeavors to expand component manufacturers. Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c gypsum wallboard or densarmor plus fireguard c panels each side of assembly and 3 1 2 89 mm fiberglass insulation in stud space both sides.

O c fabricated from nom. 2x4 lumber oriented vertically or horizontally. Building codes may require construction assemblies to have a fire resistance rating such as 1 hour 1 hour and 2 hour in specific construction types and occupancies. Helpful documents and resources for usg s roof assemblies can be found on this page.

1 5 hours nominal 2x3 24 oc min 10 depth truswal truss plates trusgard protective channels applied to bottom chord of each truss fire rated suspended ceiling min 7 1 2 below the truss sheathing min 3 4 nominal 2x3 24 oc min 10 depth truswal truss plates fire rated suspended ceiling min 7 1 2 below the truss sheathing min 3 4 fr. A two hour assembly has been calculated and a copy of the report is available from sbca sbca srr 1509 02. Find usg product specific cad and revit files. Ul p533 roof ceiling one layer 5 8 15 9 mm fire shield c ga rc 2603 wallboard attached to 1 2 12 7 mm resilient furring channel spaced 12 o c.

One basis for this type of analysis is harmathy s ten rules of fire endurance rating written in 1965. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.