How To Insulate A Detached Garage Attic

Face the paper backing toward the inside of the garage.

How to insulate a detached garage attic.

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. For the purposes of this discussion we ll cover batt and blanket. This adds insulation to the garage door without impeding its functionality. But it might make sense if you re converting the garage to living space.

This rigid foam is thinner than fiberglass batt insulation but is still an effective method of insulating. This will help while you re up on the ladder. Whether you opt for spray foam blown in or fiberglass batts for your insulation it s likely you won t need a whole lot to fully insulate your entire detached garage. Staple the paper flanges of the batts to the inside face of the rafters with your staple gun to hold the insulation in place.

Beyond the typical functions of keeping heat cold and dampness in or out insulation can also help you keep the din of the outside from entering your garage and the activities you pursue in that space from escaping to your neighbors or the. There are several insulation types you can use including batt or blanket blown in and spray. Insulating the ceiling of your garage involves the same process as insulating the walls. Just remember to use thicker r 40 insulation.

Use fibreglass cellulose foam board or closed cell spray foam if it were my garage i d go with spray foam. Once you re sure the panels are the correct size glue them in place with contact cement. Spray insulation is best performed by a pro and requires a good bit of setup in advance. You won t be working in a huge space unlike your main house an empty cold attic or a wide unfinished basement.

Insulation is not as important in an insulating a detached garage as in your home. As a high end material typically used for energy efficient construction spray foam is overkill for most garage projects. Place insulation batts in the spaces between the garage rafters. Then cover it with drywall.

Measure the height and width between the framing in the ceiling and pre cut the pieces you ll need. Spray foam is excellent for both r value and for air sealing. Without insulation though your mini split heating and cooling unit will have to run longer and cost you more money in electricity. But if the garage is heated you should definitely insulate.