1 Hour Fire Rated Roof Ceiling Assembly

Assemblies include ducts dampers lighting or other fixtures in the tested assembly.

1 hour fire rated roof ceiling assembly.

Urb concealed grid system and tile. No ceiling or suspension system product alone constitutes a fire rated assembly. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. 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.

2 1 3 4 2. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Ceiling provides one hour fire resistance protection for framing including trusses. Ibctable 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 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. 2 x 4 f d rafters flat 16 o c. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

W 2 x 4 24 o c. See full report for details. You can use only the specific type size and. Over metal trusses 5 o c w 1 2 plywood live load 20lbs steel coating by others.

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. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1. Framing nominal 2x4 wood studs spaced 16 in.

Concrete with cellular steel 3 hr. Roof ceiling and floor ceiling construction assemblies which are tested and assigned hourly ratings mandated by building codes or other building safety requirements. O c double top plates single bottom plate. 4 x 10 beams 8 o c.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.