What is the fire rating of Type X drywall?
1 hour
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 ½-inch drywall. 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.
Is Type X drywall considered combustible?
For other gypsum boards including Type X, although they are all non-combustible, shrinking occurs when exposed to a flame or heat.
What is the difference between Type X drywall and Type C drywall?
Type C drywall is known as the more durable version of Type X—there are more glass fibers in this product as well as more vermiculite components, giving it a fire resistance of 2-4 hours. You can find this product at your local drywall and insulation store in 1/2” and 5/8” thickness.
What is Type X drywall used for?
Basic Uses FIREBLOC Type X wallboard is used as a covering material for interior walls and ceilings in residential and commercial applications that often require specific fire rated assemblies. It is designed for direct attachment by screws, nails or adhesive to wood or metal framing and even existing surfaces.
How many layers of drywall do you need for a 2 hour fire rating?
two layers
As 2 hours of fire protection has become the standard for fire safety in America, it has become somewhat of a standard practice to include two layers of type X drywall within a building’s perimeter in order to achieve this required level of fire safety.
What is required for a 2 hour fire rated wall?
Double the number of Type X sheets on the wall for a simple system installed over fire-resistant fiberglass insulation; each sheet of 5/8-inch Type X drywall is rated to resist fire for one hour, so two layers will produce a two-hour firewall. Put two sheets together on one side or use one sheet on each side of a wall.
How many layers of drywall do you need for a 2-hour fire rating?
What kind of drywall goes around a gas fireplace?
We talked to the experts, and this is what we discovered. It would be best if you did not use regular drywall around a fireplace as it is considered to be highly flammable. Instead, it would be best to surround the fireplace area with non-combustible materials such as stone, tile, marble, or metal.
Can you use fire rated drywall around fireplace?
Yes, even fire rated drywall is considered combustible in fireplace world. If you need a non-comb.
How do you make drywall fire resistant?
Fireproof drywall is the common term; its industry name is Type X drywall. The thickness of this drywall is 5/8-inch, including all layers. Glass fibers are added to the board to help it slow down the fire. Also, because it is denser than normal gypsum and paper drywall, it takes longer for the fire to degrade it.
Whats better green or PURPLE drywall?
What’s the difference between PURPLE drywall and traditional green drywall? Traditional green drywall (also known as greenboard) is only moisture-resistant. PURPLE drywall, manufactured only by Gold Bond Building Products, is superior because it offers moisture, mold and mildew resistance.
What is Type X drywall made of?
Type X drywall is 5/8 inches thick and the first fire code product. It contains gypsum with noncombustible glass fibers, which increase the fire rating 1 hour minimum.
How thick is fire rated gypsum drywall?
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. or 3-5/8 inch (610 mm) steel studs spaced 24” o.c. has a minimum fire rating for the assembly of 1 hour, which is a typical requirement for many building codes.
Is 1/2 inch drywall fire rated?
Most Type X drywall has a one-hour fire rating. The fire rating for the 1/2-inch drywall used throughout the rest of the home is 30 minutes. As added benefits, Type X absorbs sound slightly better and is slightly stronger than conventional 3/8-inch or 1/2-inch drywall. Type X drywall is by no means 100 percent fireproof.
Is type X or Type C drywall more fire resistant?
Let’s point out one main thing: due to the water composition in gypsum, all drywall types retard the spread of fire to a degree. But type X and type C drywall are both specifically designed to resist fire and thus increase safety. So should you just pick either off the shelf?