Rated Roof Assembly

Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies.

Rated roof assembly.

Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. Both are burn through tests and the ultimate roof systems rating is the lowest of the three tests. 2 hour exterior wall assembly ul design no. V337 2 hour interior wall assembly ul design no.

As applied to elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. Find usg product specific cad and revit files. The firestone standards guidelines and specifications regarding roofing system components and attachment for the warranty desired must be followed. The class a brand weighs 2 000 grams class b 500 grams and class c 9 1 4 grams.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Concrete with cellular steel 3 hr. All new fire rated roof ceiling assembly files.

Ultimately the design and detailing of the project assembly or system is the responsibility of a professional and all projects must comply with applicable building codes and standards. The brands consist of an ignited wood lattice placed directly on top of the test specimen. Have a question about assemblies. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

Urb concealed grid system and tile. Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. The stc rating shown reflects testing or evaluation of an assembly with one or more products under test conditions and may not apply to all products listed for each assembly. Helpful documents and resources for usg s roof assemblies can be found on this page.

Not all ul rated assemblies that use firestone roofing products are eligible for the firestone red shield red shield medallion or platinum warranty. Shaft wall limiting heights spans. 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.