Fire Rated Drywall Ceiling Assembly

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.

Fire rated drywall ceiling assembly. Determine the existing or planned building elements including structural. 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. Description 1 1 hr. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.

Fire tests may be conducted at any one of several recognized facilities. 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. Type x drywall is 5 8 inches thick. Could possibly reduce the fire resistance rating.

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. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Selecting the right ul fire rated assembly. Concrete with cellular steel 3 hr. Finally the gypsum and fiberglass are packed tighter and denser than with regular drywall.

Tests of building construction and materials is the test standard for determining the fire resistance rating of partitions floor ceiling assemblies roof ceiling assemblies beams and columns. Building code requirements. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor. Fire rated wood frame wall and floor ceiling assemblies.

Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. Urb concealed grid system and tile. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.