1 Hour Fire Rated Roof Assembly

Assemblies rated from both sides.

1 hour fire rated roof assembly.

Assemblies include ducts dampers lighting or other fixtures in the tested assembly. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. 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. Assembly rated class a roof coverings are those that meet class a standards when combined with other elements.

Sheathing on both sides. Concrete with cellular steel 3 hr. 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. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. 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. See full report for details. 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.

2 fire rated wood frame wall and floor ceiling assemblies. Urb concealed grid system and tile. 15 9 mm t g plywood floor sheathing. With 1 2 wood structural panels with.

Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. 5 8 type x gypsum wallboard h. Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

3 mineral wool batts. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. Table 1 one hour fire rated loadbearing wood frame wall assemblies. 2x4 16 o c.

Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1.