It is 58 inches thick and is installed on each side of 2 by 4 inch wood studs spaced 16 inches. Lighten up installation and meet requirements for ASTM C1396 Type LWX gypsum drywall in fire-rated walls and ceilings.
Why Not Use Fire Rated Drywall This Old House
Type C fire-rated drywall has more glass fiber reinforcement and other ingredients in the gypsum core that.
Type x drywall fire rating. That leaves you needing 35 minutes from the bottom a layer of 58 type X will give you 40 minutes. When exposed to fire the water as a result of heat partially converts to. This 58 159 mm panel is UL certified Type LWX for use in a variety of fire-rated wood and steel-framed assemblies including some fire-rated ceiling assemblies.
UL Classified for Fire Resistance ANSIUL 263. Type X gypsum board is defined by ASTM C1396 and generally requires a fire-resistance rating of not less than one hour for 58 thick boards or 45 minutes for ½ boards. Or 3-58 inch 610 mm steel studs spaced 24 oc.
ASTM E119 and listed under UL File No. Type X fire rated gypsum drywall that is 58 -inch 159mm thick and installed on each side of nominal 2-inch x 4-inch 38x89mm wood studs spaced 16-inch 400mm oc. Noncombustible as described and tested in accordance with ASTM E136 ToughRock Fireguard X Gypsum Board is designed for use in interior drywall applications for wall and ceiling construction in assemblies with a designated fire-resistant rating.
CertainTeed Type X Gypsum Board has a Flame Spread rating of 15 and Smoke Developed rating of 0 in accordance with ASTM E 84 UL 723 UBC 8-1 NFPA 255 CANULC-S102. Gypsum calcium sulfate contains chemically combined water about 50 by volume. So your suggested assembly would actually add up to 60 minutes but you need the 58 sheathing for the 15 minutes from the top.
The sheets are enclosed in the ivory-colored paper that comes with a strong liner back. Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many. Please note that there is a type X Shaftliner drywall type with even greater fire rating qualities but this one is installed in shaft walls stairwell enclosures and area separation firewalls.
Type C is an industry phrase to designate enhanced gypsum panels that exceed the requirements for Type X gypsum board in ASTM C1396. Type X drywall is 58 inches thick and the first fire code product. Type X gypsum board is defined by ASTM C1396 and generally requires a fire-resistance rating of not less than one hour for 58 thick boards or 45 minutes for ½ boards.
The 58-inch fire-code drywall called Type X increases a walls fire rating to a minimum of 1 hour from the 30-minute rating for standard ½-inch drywall. Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes. Regular and fire-rated or Type X as its come to be called.
It does this through its chemical com-position. Type X fire rated gypsum drywall that is 58 -inch 159mm thick and installed on each side of nominal 2-inch x 4-inch 38x89mm wood studs spaced 16-inch 400mm oc. Achieve a 2 hour fire rating over 58 Type X Drywall using Intumescent Paint Introduction As the construction architecture and contracting fields develop the importance of following fire safety protocol in the design of buildings grows increasingly more strict.
Where is fire rated drywall used. Norm Abram replies. The wall systems they are approved for are different however.
And its not just thickness that makes the difference. 1 No back blocking is required for fire-rated ceiling assemblies. Type X drywall has a minimum fire rating of.
You need at least 15 minutes of fire resistance from the top which means a 58 structural panel over the TG. In the case of steel the studs are 35 by 8 inches and spaced at 24oc. Or 3-58 inch 610 mm steel studs spaced 24 oc.
A major characteristic of gypsum drywall is its ability to resist fire. Incorporating 58 type X wallboard or any given piece of 58 type X wallboard will necessarily provide one-hour fire protection in an actual fire or last for an hour in a new laborato ry fire test. Even if 58 type X wallboard is referred to using terms like one - hour board or has a one -hour fire rating this does not mean that either a particular assemblysystem incorporating 58 type X.
Both drywall Type X and Type C are approved for use in a 60-minute rated design. Type X has a denser core and contains glass fibers that keep it from crumbling in the heat. Type C is an industry phrase to designate enhanced gypsum panels that exceed the requirements for Type X gypsum.
1 Its dimensionally stable gypsum core is reinforced with glass fibers increasing its strength and fire resistance. It contains gypsum with noncombustible glass fibers which increase the fire rating 1 hour minimum. 58 159 mm ToughRock Fireguard X is UL-classified Type X and has a flame-spread rating.
The most common fire rated drywall is referred to as type X. The type X drywall is more difficult to cut and work with when compared to regular boards. Framing will give you 10 minutes.
The type X drywall consists of several thickness layers to achieve a higher fire rating.
