Fire Rated Drywall Ceiling Assembly

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.

Fire rated drywall ceiling assembly. Finally the gypsum and fiberglass are packed tighter and denser than with regular drywall. Establish the hourly rating needed to meet code requirements. Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses. 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.

Determine the existing or planned building elements including structural. Type x drywall is 5 8 inches thick. Fire tests may be conducted at any one of several recognized facilities. 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.

Building code requirements. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system incorporating the product or any given piece of the product. Description 1 1 hr. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor. 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.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Concrete with cellular steel 3 hr. Selecting the right ul fire rated assembly.

Urb concealed grid system and tile. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Quick selector for fire and sound rated systems gysum wallboard floor ceilings light gauge steel framing no. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.