Insulate Garage Attic Space

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.

Insulate garage attic space.

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. Studies for our climate have shown that no significant amount of savings were seen by insulating an unconditioned garage. Insulating the garage door is the easiest and cheapest thing to do. This is particularly imnportant if you have heating and air in the garage.

If the collar ties are 2x6 then the most blanket type insulation you can install is r19. Take up the floor allowing you to see the joists. You should have a vapor barrier between the insulation and the ceiling of your garage. If the garage is unconditioned meaning there is no mini split or duct going to the garage there is no reason to insulate the garage s attic.

Insulating the area in the attic over a garage might keep the temperature a little more stable in the garage but it does little to reduce the amount of energy needed to heat and cool your house so it s not a good investment of your energy dollars. If the attic space is going to be over the bay you pictured then you are limited in the amount of insulation you can install and still have a floor for storage. Additionally you can also purchase a new pre insulated door. Fiberglass is the most commonly used type of insulation in garages just as it s the most popular type in homes.

Hire a pro to install spray foam insulation. It s sold in pre cut batts and long blankets that fit between wall studs and ceiling joists. For example heating and air can come from clothes driers. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

You can also get loose fill fiberglass which it suitable for blowing into a garage attic space above a finished ceiling. Take the insulation up to your attic so that you are above the garage ceiling. Many garages have an attic above them. You can use rigid foam panels or do as tom silva does with nearly all houses these days.

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.