Rated Suspended 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.

Rated suspended roof ceiling assembly.

Urb concealed grid system and tile. 2 x 10 16 o c span 12 14 live load 40lbs w 3 4 wood sheathing ceiling 3 8 gwb. 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. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

Resilient channels 24 610 mm o c. As a designer and installer you should know the fundamental differences between a suspended ceiling which is an integral part of a fire rated floor ceiling or roof ceiling assembly and the far more common non fire rated assemblies. Roof floor ceiling time assembly ff file no. Don t be left hanging.

Suspended from 2. 54 1372 mm long located midway between continuous channels at end joints. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

Understanding how the nec regards suspended ceiling designs and supports is critical for proper design and installation of electrical wiring and equipment. Search for georgia pacific assemblies by selecting an assembly type hourly rating stc rating or product type above or type part of a assembly name. Deck construction type ul design number concrete thickness panel or tile size and type minimum panel or tile thickness maximum fixture penetration. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

Fire resistance assembly chart fire resistance. Fire resistance assembly chart. Ibctable 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

Fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c. 2 x 8 16 o c span 12 live load 40 lbs w 3 4 t g plywood ceiling 1 2 non rated gwb. Reference fire resistive assemblies.

Floor ceiling. Two types of fire rated construction assemblies pertain to acoustical ceiling systems.