I Joists Fire Rated Floor Ceiling Assembly

Urb concealed grid system and tile.

I joists fire rated floor ceiling assembly.

In october 2016 we made the decision to no longer use ul as a listing service for our fire resistance rated floor ceiling assemblies. 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. 5 8 15 9 mm toughrock fireguard x products applied perpendicular to 2 x 10 wood joists 16 406 mm o c. Wood joists supporting 1 25 4 mm nominal wood sub and 1 25 4 mm nominal finish floor or 19 32 15 1 mm plywood finished floor with long edges t g and 15 32.

Building code requirements. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. If the suspended ceiling system is fire rated as equivalent to the fire performance of 1 2 inch gypsum on the underside of the i joist framing it is considered an alternative to the fire protection requirements in accordance with the first paragraph in the 2015 irc section r302 13 and 2012 irc section r501 3. Concrete with cellular steel 3 hr.

Weyerhaeuser had long been the lone i joist manufacture specifically listed in ul fire assemblies. The fire resistance rated assemblies described in this document as well as those listed in other sources are not species or grade specific unless specifically noted as such. This move aligns us with the rest of the industry and will. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

Descriptions of successfully tested i joist floor as semblies are provided in table 3 for one hour fire re sistance rated floor ceiling assemblies and table 4 for. For occupancies such as stores apartments of fices and other commercial and industrial uses build ing codes commonly require floor ceiling and wall assemblies to be fire resistance rated in accordance with standard fire tests. With 1 7 8 48 mm 6d nails 6 152 mm o c. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

Trus joist tji ul fire assemblies follow. Fire rated wood frame wall and floor ceiling assemblies. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.