Fire Rated Drywall Ceiling Assembly

Fire tests may be conducted at any one of several recognized facilities.

Fire rated drywall ceiling assembly.

Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses. Selecting the right ul fire rated assembly. The addition of insulation to any one or two hour fire resistance rated floor ceiling or roof ceiling assembly is permitted provided that one additional layer of gypsum board of the same type specified in the design is added to the ceiling. Building code requirements.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Finally the gypsum and fiberglass are packed tighter and denser than with regular drywall. Type x drywall is 5 8 inches thick. 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.

Establish the hourly rating needed to meet code requirements. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Description 1 1 hr. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Urb concealed grid system and tile. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. 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.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Determine the existing or planned building elements including structural. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

Ul l524 two layers 1 2 12 7 mm fire shield c gypsum ga fc 4502 wallboard screw attached perpendicular face layer joints staggered from base layer joints to 7 178 mm. Concrete with cellular steel 3 hr. Could possibly reduce the fire resistance rating. Quick selector for fire and sound rated systems gysum wallboard floor ceilings light gauge steel framing no.