Can you put Sheetrock over foam insulation?

Installing drywall over insulation is similar to installing drywall into regular studs; however, there are some added steps to ensure the drywall is properly installed. Drywall can be installed over rigid foam board insulation.

How do you attach drywall to styrofoam?





With special adhesive, you can simply glue the drywall in place.

  1. Tape each seam in the rigid foam insulation with house wrap tape. …
  2. Cover nail holes or other breaks in the insulation with additional tape. …
  3. Snap a chalk line over each seam to mark the center of each stud.

How do you cover foam insulation?

The most common approach is to apply a stucco-like “parged” finish with a surface-bonding cement. These finishes range from a thin paint-on coating to a thick acrylic-modified mortar applied over hardware cloth or metal or fiberglass lath. The thin paint-on coatings are easily chipped and prone to peeling.

What insulation should I use in my garage ceiling?

Fiberglass Insulation

Fiberglass Insulation



Fiberglass is the most commonly used type of insulation in garages (just as it’s the most popular type in homes). It’s sold in precut batts and long blankets that fit between wall studs and ceiling joists.

Do you have to cover foam board insulation?





Rigid foam insulation, whether it is expanded or extruded polystyrene, does have to be covered if it is installed in the interior of a building. This wall covering must have a minimum fire rating to protect the insulation from quick combustion during a fire.

Can foam board insulation be used in ceilings?

In general, closed-cell foam is the best choice for unvented cathedral ceilings. It is also one of the most expensive, and most building inspectors will not allow it to be left uncovered (for fire-code reasons). Foil-faced iso-board can be cost-effective insulation for finished attics and cathedral ceilings.

How do you attach drywall to rigid foam insulation?

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Does rigid foam insulation need vapor barrier?

Foam insulation usually does not require a vapor barrier. For some foam insulation types, such as closed-cell spray foam and foam board insulation, the insulation itself stops the movement of most water vapor.

Is there insulated drywall?



Best Types of Insulation To Install Behind Drywall



Now that you recognize the importance of insulating drywall, it’s time to consider the various materials available for the job. The top choices include: Fiberglass batts: This is the least expensive and most commonly used form of insulation in residential applications.

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.


Should you insulate garage ceiling?



A garage ceiling does not necessarily need insulation. However, if you’re looking to increase the average temperature in the garage, it can definitely help to prevent warm air from escaping through gaps and holes in the ceiling.

Is it worth insulating a garage ceiling?

Sure you can and it is very important to insulate the ceiling of your garage. This is particularly important for the warmer and cooler months. The insulation will keep the heat trapped in your home and allow you to save on your heating bill, during the cooler months.

How do you cover insulation in a garage ceiling?

You can install batt or roll insulation from the bottom and then finish it with drywall. You can install drywall and then use blown in loose fill insulation or batt insulation from the top. If your garage ceiling is already finished then you will need to insulate it from the top.

How do you drywall a garage ceiling?

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Should an unheated garage be insulated?



The bottom line is that insulating even an unheated detached garage can make it better by making it more livable and prolonging the life of your car and other precious belongings. It does not cost much and you can do it yourself.

Will drywall crack in unheated garage?

Having a drywall interior wall in an unheated garage will not be a problem, even in freezing winter conditions provided the garage is kept dry and well ventilated.

What is the cheapest way to insulate a garage?

Fiberglass roll insulation is the cheapest and easiest type to install, provided that your garage’s interior walls have not been constructed. Unroll the insulation between the wall studs with the vapor barrier facing the inside of the garage.

Do I need a vapor barrier when insulating my garage?

If the garage is heated, you will need a vapor barrier, otherwise you will get frost and mold. Some argue that the car itself will cause the garage to be heated, but this would only be the case if you left the car to warm up in the morning, otherwise it would not have the chance to warm the garage.

Should I insulate the attic above my garage?



If your home’s HVAC system does extend into the garage, then the attic above it should be insulated as it would for any other room of the house. This will serve the same function of keeping hot or cold air inside the garage as it does for the rest of the house.

Should I put a vapor barrier on my ceiling?

In hot-dry climates a vapor retarder should also not be installed, but attics can be vented. All attics — vented or unvented — should have an air barrier (a properly detailed airtight drywall ceiling, for example) regardless of climate.