1 Hour Fire Rated Roof Ceiling Assembly

With 1 2 wood structural panels with exterior glue applied at right angles to top of joist or top chord of trusses with 8d nails.

1 hour fire rated roof ceiling assembly.

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. Concrete with cellular steel 3 hr. Ul tests rate an entire assembly. Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1.

Ibctable 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. 4 x 10 beams 8 o c. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. Ceiling provides one hour fire resistance protection for framing including trusses.

W 1 2 plywood beam span 10 live load 20lbs. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. O c double top plates single bottom plate. Assemblies include ducts dampers lighting or other fixtures in the tested assembly.

2 1 3 4 2. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 2 x 4 f d rafters flat 16 o c. Fire rated wood frame wall and floor ceiling assemblies 5 ws4 1 1 one hour fire resistive wood frame wall assembly 2x4 wood stud wall 100 design load astm e 119 nfpa 251.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. No ceiling or suspension system product alone constitutes a fire rated assembly. You can use only the specific type size and. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

Urb concealed grid system and tile. Framing nominal 2x4 wood studs spaced 16 in. W 2 x 4 24 o c. See full report for details.

Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.