Fire Rated Roof Assembly

A question has come up concerning sloped roof trusses and fire assembly ratings.

Fire rated roof assembly.

Helpful documents and resources for usg s roof assemblies can be found on this page. 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. Do you have any information regarding the suitability of the fire rated ceiling assemblies for sloped roof trusses. Urb concealed grid system and tile.

Concrete with cellular steel 3 hr. 2 hour exterior wall assembly ul design no. The code requirements for fire resistance of metal panels are logical and not overly burdensome. 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.

Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. Our cad and revit library of design drawings of wall intersections joints and other construction details. 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. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. All new fire rated roof ceiling assembly files. These assemblies need to meet fire and smoke safety and environmental sustainability requirements. Fire rated wall floor and ceiling assemblies provide the necessary fire and smoke barriers to create compartmentalization during a fire safeguarding against the spread of fire and smoke within a building or to and from a building.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. V337 2 hour interior wall assembly ul design no. Find usg product specific cad and revit files. Most metal panel manufacturers have tested their roof assemblies and most if not all metal panels and shingles can be used in class a fire rated roof systems.

Shaft wall limiting heights spans. Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies.