Rated Roof Assembly

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

Rated roof assembly.

Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. 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. Helpful documents and resources for usg s roof assemblies can be found on this page. 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.

Both are burn through tests and the ultimate roof systems rating is the lowest of the three tests. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Urb concealed grid system and tile. The class a brand weighs 2 000 grams class b 500 grams and class c 9 1 4 grams.

All new fire rated roof ceiling assembly files. Shaft wall limiting heights spans. Our cad and revit library of design drawings of wall intersections joints and other construction details. If the roof deck is combustible such as wood plywood or osb two additional tests must be conducted.

For example shake roofing with a fire retardant treatment rates class b on its own but achieves a class a rating when combined with specified underlying materials such as type 72 roll roofing material. The firestone standards guidelines and specifications regarding roofing system components and attachment for the warranty desired must be followed. Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 2 hour exterior wall assembly ul design no.

Find usg product specific cad and revit files. Have a question about assemblies. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. The brands consist of an ignited wood lattice placed directly on top of the test specimen.

Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. V337 2 hour interior wall assembly ul design no. 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.