1 Hour Fire Rated Roof Assembly

With 1 2 wood structural panels with.

1 hour fire rated roof assembly.

Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. 5 8 type x gypsum wallboard h. 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.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base. Assemblies include ducts dampers lighting or other fixtures in the tested assembly. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

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. Sheathing on both sides. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. 2x4 16 o c. Assemblies rated from both sides.

2 fire rated wood frame wall and floor ceiling assemblies. See full report for details. 15 9 mm t g plywood floor sheathing. Concrete with cellular steel 3 hr.

3 mineral wool batts. 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. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Urb concealed grid system and tile.

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.