Quick Answer: What Is The Fire Rating For 5/8 Drywall?

Is there a difference between sheetrock and drywall?

Put a bit differently: Drywall and sheetrock are really the same thing.

Drywall is a panel made of gypsum plaster pressed between two thick sheets of paper.

Sheetrock is a brand of drywall patented by the US Gypsum Company..

What is a 4 hour fire rated wall?

Combined, the level of protection against a fire increases significantly. To create 4-hour fire rated protection, things like cold-formed steel clips, gypsum board, and corner beads are included. At this level of protection, the thickness of the gypsum and the casing attachment meet tight specifications.

Are all 5/8 gypsum boards Fire rated?

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 …

Is drywall mud fire rated?

What is the fire rating of joint compound? Joint compound does not have a fire rating by itself, but does meet ASTM C475. … USG Joint Compounds are used in numerous fire-tested assemblies. These are outlined in USG Publication SA100 Construction Selector.

Is all drywall fire resistant?

Although all drywall is fire resistant to a degree, type-X and type-C drywall are designed specifically to be used in fire-rated assemblies. These products help to contain fire in the area of its origin much better than regular drywall.

How thick is a 2 hour fire rated wall?

3 1/5 inchesThe fire-resistance rating of concrete masonry walls depends on the type of aggregate used in the units. A 2-hour rating can be achieved by a wall with an equivalent thickness of as little as 3 1/5 inches when expanded slag or pumice is used or 4 1/2 inches when siliceous gravel is used as the aggregate.

What is 1 hour fire rated wall?

According to the Engineered Wood Association, a one-hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures, and support its full load, for at least one hour after the fire begins.

Can you mud over fire tape?

The surface of the Fire Tape is treated with silicone and mud or paint will not adhere to it. If you need to disguise the color of the Fire Tape on exposed walls, we recommend using a primer called Zinsser, Bulls Eye Odorless to coat over it. Once the Zinsser is dry, a latex paint or mud can be applied.

Does 1/2 drywall have a fire rating?

Why Fireproof Drywall Is Fire-Rated If a conventional 1/2-inch thick sheet of drywall will stand up to 30 minutes of fire, then the added 1/8-inch found in the Type X drywall, along with its other properties, will double your margin of safety to 60 minutes.

What does a 4×8 5/8 sheetrock weigh?

74 poundsA 4 x 8-foot sheet of standard 5/8-inch thick drywall weighs 74 pounds, and a 23 percent reduction in weight offered by ultralight can be significant.

Can drywall catch on fire?

Drywall is relatively fire resistant. It’s composed of gypsum pressed between two sheets of thick paper. Gypsum is a soft mineral that by itself is not flammable. … In the presence of fire, heat energy vaporizes the water, removing it gradually.

How much does a 12 foot sheet of 5/8 drywall weight?

For a frame of reference, standard 1/2″ drywall that is used in interior residential construction generally weighs about 1.6 pounds per square foot, totaling 51.2 pounds for one sheet. A 5/8″ sheet of drywall, which is used to achieve fire ratings, typically weighs a little over 70 pounds.

What is the fire rating of 5/8 drywall?

1 hourNorm Abram replies: 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.

What makes a 2 hour fire rated wall?

Gypsum Board: Two (2) hour rated walls have two (2) layers of 5/8″ Type ‘X’ gypsum wallboard panels on each side of the steel studs. The “Fire Tape” product would be used as an alternative to conventional joint tape in specific systems when: 3.

Can you use 1/2 inch drywall ceiling?

1/2-inch: Half-inch drywall panels are the standard thickness for interior walls, as well as ceilings. 5/8-inch: These panels are commonly used for ceilings, or for walls that require a prescribed fire-resistant rating.

How long should screws be for 5/8 drywall?

When working with 1/2-inch drywall panels, use 1-1/4 or 1-3/8-inch nails or screws. When working with 5/8-inch drywall panels, use 1-3/8-inch or 1-5/8-inch screws. In most cases, securing drywall will require fewer screws than nails.

Does garage drywall need to be taped?

Garage drywall, like any other area with drywall, should have tape embedded over all the joints. I like to use the pre-creased paper tape. It’s not sticky like typical tape, but with an initial layer of mud, you can use it on all of the straight joints, and also on the inside corners.