Fire Rated Drywall

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.

Fire rated drywall.

Finally the gypsum and fiberglass are packed tighter and denser than with regular drywall. 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. Type c fire rated drywall sometimes referred to as improved. 6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test.

And it s not just thickness. 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. A 60 minute fire rating is a measure of the amount. Steve miller sylvan lake mi.

Type x drywall is 5 8 inches thick. Or 3 5 8 inch 610 mm steel studs spaced 24 o c. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses.

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. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 1 4 inch drywall for example isn t strong enough to provide support alone but can be installed over a surface that s already in place as in patching drywall.

I d certainly pay a premium over standard drywall to have a more fire resistant structure. Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Get free shipping on qualified fire resistant drywall or buy online pick up in store today in the building materials department.

These listings are short summaries to serve as a. What is the difference between one hour fire rated drywall and three hour fire rated drywall and where would each one be used.