1 Hour Fire Rated Roof Assembly

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

1 hour fire rated roof assembly.

5 8 type x gypsum wallboard h. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements.

15 9 mm t g plywood floor sheathing. Sheathing on both sides. Table 1 one hour fire rated loadbearing wood frame wall assemblies. 2 fire rated wood frame wall and floor ceiling assemblies.

Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. Concrete with cellular steel 3 hr. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

Assemblies include ducts dampers lighting or other fixtures in the tested assembly. 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. 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. 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.

Assemblies rated from both sides. 3 mineral wool batts. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. With 1 2 wood structural panels with.

See full report for details.