Insulating Garage Ceiling: 5 Easy Steps to Follow

Insulation should be the first thing you consider if you want to air condition or heat your garage properly. However, this will be an impossible task if you only insulate the garage doors and walls, but not the ceilings.

It is important since once the heat rises in your garage, it will go through the ceiling and roof directly.

Wondering how to insulate the ceilings of your garage properly? Let’s find out the best insulating garage ceiling tips on this page.

#1. Seal Gaps and Holes

To insulate your garage ceiling, you can start with sealing any gaps and holes found in the upper area of your garage.

You can also find any holes and gaps that can’t be covered by batt or loose-fill insulation on the garage windows. In doing this job, using expanding spray foam insulation can be a great option.

Keep in mind to avoid filling any vents since they are installed to allow air to circulate better under your roof.

#2. Installing Baffles

For the next step, you need to maintain ventilation by installing roof vents or baffles. They are needed so that air can flow in your roof properly.

The installation enables you to avoid the build-up of moisture and mold. Additionally, the foam baffles installed also make it possible for you to keep air gaps under the roof.

In this way, the insulation installed will not block them. To optimize the baffle installation, you can position it near the roof edges. These are the areas where insulation is often found bunched up against that garage roof.

#3. Finished Vs Unfinished Ceilings

In the insulating the garage ceiling process, you also need to consider the finishing of the area. Is it a finished or unfinished ceiling?

If the ceiling of your garage isn’t finished yet and it has exposed joists, there will be a few options available for you.

With an unfinished ceiling, you can install roll insulation or batt from its bottom. Then, you can finish the installation with drywall. After that, you can use blown from the top in batt insulation or loose-fill insulation.

However, you need to insulate your garage right from the top if the ceiling is already finished. It requires you to install roll insulation or batt insulation in the attic.

The finished ceiling also allows you to go into the attic and install blown-in loose fill.

#4. Installing Rolls or Batting from the Bottom

Depending on the joist gaps you have in your ceilings, the way you insulate the garage ceiling can be different.

Before starting the process, you need to keep in mind that insulation is created to suit the standard of both ceiling joist dimensions and wall studs.

In this way, make sure that you look up local codes to find out whether you need unfaced or faced insulation.

Generally speaking, faced insulation comes with a one-sided plastic or paper vapor retarder layer. To install roll or batt insulation, you need to push it through the joists of the ceiling.

#5. Loose-Fill Fiberglass or Cellulose Insulation

In the insulation garage ceiling process, you can use an insulation blower to blow in insulation. The expanding spray foam or caulk you fill holes and gaps in the ceiling will help you avoid the insulation blowing into your garage.

Make sure that you install baffles around any piping, electrical, or chimneys in your ceiling. In doing this, you can use sheet metal or high-temperature items around chimneys. Then, you can use the caulk to seal the baffles installed.

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