Fire Rated Fire Resistant Drywall

Drywall supply offers type c and type x fire rated drywall.
Fire rated fire resistant drywall. A certification process determines the fire rating of a wall system. It s composed of gypsum pressed between two sheets of thick paper. Type x fire rated drywall provides a minimum fire rating of one hour the typical requirement of building codes. Fire rated type x drywall basics fireproof drywall is the pejorative term.
The thickness of this drywall is 5 8 inch including all layers. What is fire resistance rated construction. 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. 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. Get free shipping on qualified fire resistant drywall or buy online pick up in store today in the building materials department. When gypsum drywall is exposed to fire the water is slowly released as steam effectively retarding heat transmission. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.
And it s not just thickness that makes the difference. Type x has a denser core and contains glass fibers that keep it from crumbling in the heat. For a two hour fire rating we install two 15mm gyproc fire rated rhinoboards either side of a 63mm track. Gypsum is a soft mineral that by itself is not flammable.
It is the wall system not specific products that are tested and certified. Glass fibers are added to the board to help it retard fire. 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. To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies.
Its industry name is type x 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. Gypsum is approximately 21 percent by weight chemically combined water which greatly contributes to its effectiveness as a fire resistive barrier. Drywall is relatively fire resistant.
We can install one and two hour fire rated systems. Have a look at this example of a fire rated certificate. Also because it is denser than normal gypsum and paper. For example a fire rated drywall board is approved for use as part of a certified wall system.
A basic wall system could include a drywall board insulation light gauge steel stud followed by another drywall board. 1 hour and 2 hour fire rated drywall.