Attic Insulation For Detached Garage

Fiberglass is the most commonly used type of insulation in garages just as it s the most popular type in homes.

Attic insulation for detached garage.

It s sold in pre cut batts and long blankets that fit between wall studs and ceiling joists. This will allow you to add the needed insulation. 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. You can also get loose fill fiberglass which it suitable for blowing into a garage attic space above a finished ceiling.

If the garage is open to the rafters the boards that support the roof use r 38 insulation between the rafters at the roof if they are 10 inches deep. Fit the insulation around electrical boxes pipes and other obstructions by cutting away the insulation around the obstruction. To get more insulation in the garage install a ceiling and provide access to the space between the ceiling and the roof. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

Your hvac unit extends into your garage. You can achieve better thermal performance in your attic by adding an. You won t be working in a huge space unlike your main house an empty cold attic or a wide unfinished basement. You have an air conditioned room above your garage.

If you live in a very cold climate you would need to consider insulation to keep the car from freezing but in southern areas you could probably get by with r 19 insulation in the attic and none in the walls. When you should use garage attic insulation. Besides you might only be considering insulating the upstairs loft portion of your detached garage. You are turning the garage into a bedroom.

When you should insulate the garage. Attached garages are one of the. Achieving greater r values in attics. You plan on turning your garage into a studio man cave or workshop.

Yes you should insulate your garage attic if. Insulating the attic above the garage will help keep temperatures in the garage a bit more stable but it won t have any appreciable effect on energy bills. The primary reason to insulate any part of the home is to provide a thermal barrier between conditioned heated or cooled interior space and the outdoors or unheated spaces such as an unfinished. Insulation is not as important in an insulating a detached garage as in your home.

This will serve the same function of keeping hot or cold air inside the garage as it does for the rest of the house. Use fibreglass cellulose foam board or closed cell spray foam if it were my garage i d go with spray foam. Then cover it with drywall for fire resistance. Install the cut pieces of insulation in the wall cavities with the paper backing facing inside the garage.

The higher the r value the better the thermal performance of the insulation.