Garage Ceiling Drywall Thickness Astonishing
Type x gypsum board for garage ceilings beneath habitable rooms shall be installed perpendicular to the ceiling framing and shall be fastened at maximum 6 inches o c.
Garage ceiling drywall thickness. The larger the panels the fewer the seams and if you re taping out the. Drywall screws at least 1 inch longer than the thickness of the drywall are used to attach the panels to the ceiling joists. 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.
The thickest option available 5 8 inch drywall is ideal for commercial construction applications. For the ceiling however the general rule in construction is to install the largest drywall panels you can handle safely. Type x has a denser core and contains glass fibers that keep it from crumbling in the heat.
If weight is still a concern consider ultra light half inch drywall. However for the walls our local code allows for 1 2 wallboard for 24 oc studs. Unless local building codes specify a thickness for ceiling drywall using panels that are one half inch thick on ceilings with 16 inch joist spacing is standard.
On that wall you d need a inch thick drywall was a fire barrier. When installed horizontally the panels will fit evenly eliminating the need to cut the panels. The thinnest panels which are one quarter inch thick are generally reserved for overlaying existing walls or ceilings because these thin panels have a tendency to wave and warp when installed alone.
When applying a water based texture material the minimum gypsum board thickness shall be increased from 3 8 inch to 1 2 inch for 16 inch on center framing and from 1 2 inch to 5 8 inch for 24 inch on center framing or 1 2 inch sag resistant gypsum ceiling board shall be used. And it s not just thickness that makes the difference. For a single layer of drywall 1 5 8 inch screws are sufficient.
The thickest of all the types of drywall 5 8 inch drywall is often fire resistant drywall. Its thickness makes it the ideal. If the garage walls are 9 feet high select panels that are 54 inches wide.
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