1 Hour Fire Rated Roof Assembly

Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.

1 hour fire rated roof assembly.

Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Table 1 one hour fire rated loadbearing wood frame wall assemblies. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system. 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. Urb concealed grid system and tile. Sheathing on both sides.

Assemblies rated from both sides. 2 fire rated wood frame wall and floor ceiling assemblies. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

Assemblies include ducts dampers lighting or other fixtures in the tested assembly. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. See full report for details. 15 9 mm t g plywood floor sheathing.

3 mineral wool batts. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Concrete with cellular steel 3 hr. 2x4 16 o c.

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. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements. 5 8 type x gypsum wallboard h.

With 1 2 wood structural panels with.