Fire Rated Fire Resistant Drywall

When gypsum drywall is exposed to fire the water is slowly released as steam effectively retarding heat transmission.

Fire rated fire resistant drywall. We can install one and two hour fire rated systems. The 5 8 inch fire code drywall called type x increases a wall s fire rating to a minimum of 1 hour from the 30 minute rating for standard inch drywall. Type x fire rated drywall provides a minimum fire rating of one hour the typical requirement of building codes. A basic wall system could include a drywall board insulation light gauge steel stud followed by another drywall board.

Drywall is relatively fire resistant. Glass fibers are added to the board to help it retard fire. The thickness of this drywall is 5 8 inch including all layers. How are walls fire rated.

Its industry name is type x drywall. Have a look at this example of a fire rated certificate. What is fire resistance rated construction. Drywall is relatively fireproof but manufacturing processes such as adding glass fibers can increase the resistance.

Get free shipping on qualified fire resistant drywall sheets or buy online pick up in store today in the building materials department. For example a fire rated drywall board is approved for use as part of a certified wall system. It s composed of gypsum pressed between two sheets of thick paper. Gypsum is a soft mineral that by itself is not flammable.

Drywall supply offers type c and type x fire rated drywall. And it s not just thickness that makes the difference. Also because it is denser than normal gypsum and paper. Fire rated gypsum drywall is more fire resistant because it contains glass fiber reinforcement and other additives within its specially formulated gypsum core to help it hold up longer to a fire exposure.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Fire rated assemblies are tested and certified in their entirety. For a two hour fire rating we install two 15mm gyproc fire rated rhinoboards either side of a 63mm track. 1 hour and 2 hour fire rated drywall.

Type c fire rated drywall has more glass fiber reinforcement additives to its gypsum core making it an even more fire resistant material than type x. To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. Type x has a denser core and contains glass fibers that keep it from crumbling in the heat. A certification process determines the fire rating of a wall system.

Gypsum is approximately 21 percent by weight chemically combined water which greatly contributes to its effectiveness as a fire resistive barrier. Fire rated type x drywall basics fireproof drywall is the pejorative term.