Is gypsum board fire resistant?

Is gypsum board fire resistant?

Gypsum is approximately 21 percent by weight chemically combined water which greatly contributes to its effectiveness as a fire resistive barrier. When gypsum drywall is exposed to fire, the water is slowly released as steam, effectively retarding heat transmission.

Is Knauf Insulation fire Rated?

Fire Safety Knauf Insulation Unfaced Batts are considered noncombustible accord- ing to ASTM E-136. Facings and coated products do affect fire safety and burning characteristics. Please consult your Knauf Insulation sales representative or technical support for additional information and ap- propriate applications.

How fire resistant is gypsum?

Gypsum is non-combustible, which means that it contributes no fuel to a fire. As the chemical formula shows, gypsum contains 21% by weight chemically combined water, also called crystalline water that is part of the gypsum crystal itself.

Is there a fire resistant drywall?

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 retard fire. Most Type X drywall has a one-hour fire rating.

Does gypsum catch fire?

#1: Offers fire protection One of those advantages is the heat-resistant property of this material. It has a noncombustible core that contains chemically combined water (in calcium sulfate). Even after the water is gone, the gypsum board continues to resist heat.

Which insulation is fire-resistant?

Fiberglass: Made of glass that is spun into fibers, then combined with plastic polymers, fiberglass insulation is naturally fire resistant.

Which is the best fire resistant gypsum board?

Spaces with high fire protection requirements, Fire Resistant Gypsum Board (FR), Fireboard or Aquapanel boards should be used. It is possible to provide high fire protection, Fireboard (A1 fire class) can be used. Load bearing building elements should be protected during the min. declared time with their functions.

What kind of gypsum is used for drywall?

Knauf Fire Resistant Gypsum Boards (FR) are high performance gypsum boards used as the cladding component of drywall constructions such as: NOTE: Fire resistant gypsum boards are just part of a complete fire rated assembly.

What do you need to know about Knauf systems?

The first measures to be taken for fire safety is “passive fire protection” . All Knauf systems are certified by the test reports which completed in accredited laboratories. Gypsum building materials are inorganic and non-combustible. Gypsum is included into classical fire protection building materials.

How is gypsum used in classical fire protection?

Gypsum is included into classical fire protection building materials. Compared to other building materials, gypsum has 20% crystalized water which means there are three liters crystalized water per 1 m2 15mm thick gypsum board. The water in gypsum vaporises during fire which delay the fire with the vapour barrier.