Fire Rated Drywall Fire Rating Chart

Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses.

Fire rated drywall fire rating chart. Or 3 5 8 inch 610 mm steel studs spaced 24 o c. Astm e119 standard test methods for fire tests of building construction and materials is the test standard for determining the fire resistance. Gypsum board partitions wood framing load bearing 1 not rated n a 36 ngc 2012051 2 not rated n a 39 ngc 2009047 3 not rated n a 43 ngc 2009040 4 not rated n a 42 ngc 2012065 5 not rated n a 49 ngc 2009027. Type x drywall is 5 8 inches thick.

16 57 1 2 p219 2 24 x 48. Rating design description stc test no. 5 8 pc plus 1 2 gypsum bd. National gypsum company fire and sound selector fire sound selector fire ul ga item no.

System product alone constitutes a fire rated assembly. 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. Type x fire rated gypsum drywall that is 5 8 inch 15 9mm thick and installed on each side of nominal 2 inch x 4 inch 38x89mm wood studs spaced 16 inch 400mm o c. Fire resistance assembly chart fire resistance deck construction type ul design number concrete thickness panel or tile.

Same can probably be said for occupants of multi family homes with separation walls and unless you are replacing the drywall in an attached garage there. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Fire and sound ratings fire ratings fire resistance is the ability of an assembly constructed in a laboratory to contain a fire in a carefully controlled test setting for a specified period of time. A durock panel with a thickness of 1 2 or 5 8 inch can provide two hours of fire protection when installed correctly and in conjunction with all fireproofing.

No in residential construction fire rated assemblies are only specified for garages and most homeowners with attached garages are probably not aware of the fire rating for that wall. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. Type c fire rated drywall sometimes referred to as improved. Finally the gypsum and fiberglass are packed tighter and denser than with regular drywall.

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