Fire Rated Fire Resistant Drywall

To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies.

Fire rated fire resistant drywall.

Glass fibers are added to the board to help it retard fire. Type x fire rated drywall provides a minimum fire rating of one hour the typical requirement of building codes. Gypsum is approximately 21 percent by weight chemically combined water which greatly contributes to its effectiveness as a fire resistive barrier. 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.

A basic wall system could include a drywall board insulation light gauge steel stud followed by another drywall board. One hour fire rated install one 15mm gyproc fire rated rhinoboard either side of a 63mm drywall track. The thickness of this drywall is 5 8 inch including all layers. 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.

Type x has a denser core and contains glass fibers that keep it from crumbling in the heat. It s composed of gypsum pressed between two sheets of thick paper. Fire rated assemblies are tested and certified in their entirety. 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.

Drywall is relatively fire resistant. What is fire resistance rated construction. And it s not just thickness that makes the difference. For a two hour fire rating we install two 15mm gyproc fire rated rhinoboards either side of a 63mm track.

How are walls fire rated. A certification process determines the fire rating of a wall system. 1 hour and 2 hour fire rated drywall. Drywall supply offers type c and type x fire rated drywall.

Also because it is denser than normal gypsum and paper. Have a look at this example of a fire rated certificate. When gypsum drywall is exposed to fire the water is slowly released as steam effectively retarding heat transmission. Fire rated type x drywall basics fireproof drywall is the pejorative term.

Its industry name is type x drywall. Get free shipping on qualified fire resistant drywall sheets or buy online pick up in store today in the building materials department. Gypsum is a soft mineral that by itself is not flammable. It is the wall system not specific products that are tested and certified.

Drywall is relatively fireproof but manufacturing processes such as adding glass fibers can increase the resistance. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.