Is 5/8-inch drywall required for ceilings?

The usual size of drywall that is used on interior walls is 1/2-inch drywall. What drywall is used on ceilings? The standard drywall thickness to use on ceilings is 5/8-inch drywall.

Can you use 1/2-inch drywall ceiling?





Use 1/2-inch thick green board on ceilings with joists spaced 12 inches apart or fewer and 5/8-inch drywall on ceilings with joists up to 16 inches apart. Use a waterproof wall material over green board in moisture-prone areas.

Should you drywall a garage ceiling?

Drywall is a great building matter that is highly resistant to fire so it is a great addition to garages. Garages often have power tools in them, flammable materials, and also people who work on cars with products that could catch fire. Installing drywall would be a good idea to keep it a safe area.

What can I use instead of drywall in garage ceiling?

Plywood, medium-density fiberboard (MDF) and oriented strand board (OSB) are expedient and low-cost solutions for garage walls. They can be attached over studs quickly with framing screws and, unlike drywall, wood doesn’t require any taping, mud, or sanding.

Does garage drywall need to be fire rated?

A: First, fire-rated systems are only required if the garage shares a wall or a ceiling with the home. If you are doing repairs in the garage you should replace with like materials, but remember it is the wall system that is fire rated not the product itself.

When should you use 5/8 drywall?





If you’re in the process of building or remodeling, you should consider installing 5/8″ wall boards on all walls and ceiling in your home. Typically in the last 20 years or so most homes will have 1/2″ sheetrock on the walls and 5/8″ sheetrock on the ceilings.

How far can 5/8 drywall span on a ceiling?

5/8″ might span it, though you’ll end up with a lot of 6″ scraps due to 90 rather than 96″ spacing. 1/2″ not a chance – it will sag badly. If you strap it, you only need 1×3, and you don’t (IMHO) want it 24″ apart which is already a marginal spacing on ceilings – put it 16″ or even 12″ apart.

How far can 1/2 drywall span on a ceiling?

1/2- or 5/8-inch drywall is 24 inches on-center. Ceiling drywall should always be installed perpendicular to the joists, even when they are 16 inches on-center.

How thick should a ceiling be?

The correct thickness for ceiling drywall is ½ inch (12.7mm). ½ inch-thick drywall panels are recommended because they are easy to carry and hang on ceiling rafters during installation. You can also use the much lighter half-inch boards that weigh 54.4lbs as they are more suited for ceilings.

What should I put on my garage ceiling?



Which Material is Most Suitable for the Garage Ceiling?

  1. Aluminum Soffit. Making the best garage ceiling requires the best of materials. …
  2. Vinyl Beadboard Soffit. This is an alternative for aluminum soffit. …
  3. Corrugated Metals. …
  4. Plywood. …
  5. Oriented Strand Board (OSB) …
  6. Vinyl Siding. …
  7. PVC Tiles. …
  8. Drywall.


Can I use plywood instead of drywall in my garage?

Plywood Garage Walls is useful for the type of garage and storage spaces where homeowners frequently hang their tools, shelves, trophies, machinery etc. Due to the extra strength provided by plywood, there is high resistance to dents and damage, which is something that plagues drywall.

Should you insulate floor above garage?



Even when a garage is attached to the home, it is still outside the thermal envelope of the home, so the walls and ceiling separating it from the rest of the home must be insulated and air sealed just like any exterior walls or floors above unconditioned space.

What size drywall should I use in garage?

Drywall is the easiest and most economical covering for your garage ceiling. Use 5/8-in. -thick drywall if your trusses or rafters are spaced 24 in. apart.

Do you need a firewall between house and garage?

In short, the garage needs to be separated from the house in case of fire, but this isn’t a fire-rated assembly, nor is it a firewall. The best term for this required separation is a fire-separation wall.

Does a ceiling need to be fire-rated?

30 or 60 Structural Minute Fire Rating



When a structural fire rating is needed from a suspended ceiling, it is usually either for 30 or 60 minutes – but this rating is less often required.

Do I need a fire door into my garage?



Any door leading from your home into an integral garage must be a fire door. In most domestic situations, FD30 (fire doors with a 30 minute fire rating) are sufficient.

Do LED lights need to be fire rated?

Do downlights have to be fire rated? It is highly recommended that all downlights installed are fire rated. This is purely for your protection in your home, as they give you more time to escape a fire and help slow the fire spreading through floors.

What makes a 1 hour fire rated ceiling?

More specifically, if a wall is constructed in a manner that closely resembles a tested wall which has shown to contain flames and high temperature for one hour, it is eligible to receive a 1-hour rating.

Is drywall a fire barrier?

All drywall is fire-resistant to some degree. Also called gypsum board, ordinary drywall panels are made of a layer of soft, non-flammable mineral called gypsum pressed between two thick sheets of paper.

How do you fireproof a ceiling?



Quote from the video:
Quote from Youtube video: We've left the existing ceiling in place and we've over boarded this with a 15 mil. Fire rated plaster board which gives us full fire protection. One hour and along these we add to existing beams.