1 2 Drywall Fire Rating

What is the difference between one hour fire rated drywall and three hour fire rated drywall and where would each one be used.

1 2 drywall fire rating.

12 7 mm and 5 8 in. Type c fire rated drywall has more glass fiber reinforcement and other ingredients in the gypsum core that makes its fire resistive properties superior to type x. Fire resistant drywall sheets or buy online pick up in store today in the building materials department. A durock panel with a thickness of 1 2 or 5 8 inch can provide two hours of fire protection when installed correctly and in conjunction with all fireproofing.

Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes. And it s not just thickness that makes the difference. View top sellers in. Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses.

The house was built in 1975. It is not possible to take everthing down to add more 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. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core.

Get free shipping on qualified 1 2 in. Get free shipping on qualified fire resistant drywall sheets or buy online pick up in store today in the building materials department. Code says it must be 5 8. A 60 minute fire rating is a measure of the amount.

I currently have 1 2 drywall on my wall sepating the garage which is now an accesory apartment. Or 3 5 8 inch 610 mm steel studs spaced 24 o c. 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 inch drywall. Type x drywall is 5 8 inches thick.

Is there another way to increase the fire rating by either a product i paint on or spray on. The exact fire rating of durock is dependent on the other materials used during construction but a panel 1 4 or 1 2 inch thick typically provides an additional hour of fire protection. 15 9 mm thicknesses sheetrock brand firecode c panels ul type c feature a noncombustible gypsum core that is encased in 100 recycled face and back papers that form a high strength composite design. Available in 1 2 in.