1 Hour Fire Rated Roof Assembly

Concrete with cellular steel 3 hr.

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

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

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. With 1 2 wood structural panels with. Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base. 5 8 type x gypsum wallboard h.

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

Sheathing on both sides. 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. See full report for details.

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. 3 mineral wool batts. 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. Urb concealed grid system and tile.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.