What Is The Fire Rating Of Type C Drywall?

Is Type C drywall fire rated?

Type C drywall is the improved version of the x type.

This fire-rated drywall type is available in 1/2” and 5/8” thicknesses and its gypsum core still consists of glass fibers..

What is Firecode C drywall?

ceiling applications (15.9 mm) thicknesses, USG Sheetrock® Brand Firecode® C Panels (UL Type C) are enhanced proprietary Type X panels that feature a noncombustible gypsum core that is encased in 100% recycled face and back papers that form a high strength composite design.

What is a 1 hour 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.

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.

Can Type C Drywall be used on walls?

Noncombustible (as described and tested in accordance with ASTM E136) ToughRock® Fireguard C® Gypsum Board is designed for use in a variety of interior drywall applications for wall and ceiling construction in assemblies with a designated fire-resistant rating.

Is there a difference between sheetrock and drywall?

Drywall is a flat panel made of gypsum plaster sandwiched in between two sheets of thick paper. It adheres to metal or wood studs using nails or screws. Sheetrock is a specific brand of drywall sheet. These terms are often used interchangeably.

Does 1/2 drywall have a fire rating?

A standard 1/2′ drywall can offer up to half an hour of fire resistance. It is used in most common areas of the house because it has a lower cost. The real fire rated drywall has to be certified by a third party.

What is the purple sheetrock for?

National Gypsum has developed Purple drywall that is moisture, mold, and mildew resistant. This means less water and mold damage in homes keeping construction debris from landfills. In addition, within the line of Purple drywall products, are sheets that stand up to abuse and impact.

What is Firecode 30 drywall?

has released Sheetrock brand UltraLight Panels Firecode 30, a lightweight 5/8″ non-type X wallboard. The gypsum panels are 30% lighter than a standard type X panel and are made with up to 95% recycled content. They meet building requirements for nonrated and for 30-minute fire-rated applications.

How do you get 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.

What’s the fire rating on 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.

What is a 2 hour 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.

Is Blue drywall waterproof?

Blue Board Drywall- Blue board drywall is another moisture resistant drywall that is used for veneer plastering. It has high water and mold resistance as well as unique absorption qualities. This type of drywall is often used in bathrooms and other rooms with a lot of moisture.

What is a 3 hour fire wall?

The 3-hour Area Separation Wall System is a 3-hour fire wall consisting of two layers of 1 in. … The steel H-Studs are attached to adjacent framing on each side with heat-softenable, aluminum break-away clips (ASW clips) that allow for collapse of the fire-exposed unit without collapse of the Area Separation Wall.

What is Type C drywall?

Type C is an industry phrase to designate enhanced gypsum panels that exceed the requirements for Type X gypsum board in ASTM C1396. Type C panels typically have a shrinkage-compensating additive, and when exposed to heat, the Type C gypsum board expands providing more fire-resistance at joints and seams.

Is sheetrock a fire retardant?

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 thick is a 2 hour fire rated wall?

3 1/5 inchesA 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 the difference between green and purple drywall?

Traditional green drywall (also known as greenboard) is only moisture-resistant. PURPLE® drywall, only made by National Gypsum, is superior because it offers moisture, mold and mildew resistance.