Yes insulating an attached garage is a must if you don t have a central a c or heating system that extends into the garage space.
Insulating attached garage attic.
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.
As a high end material typically used for energy efficient construction spray foam is overkill for most garage projects.
Insulating the garage attic if you re lucky enough to have a ceiling and attic access to your garage adding a basic level of insulation up there is a good idea.
Insulating an attached garage may help lower heating and cooling costs since it provides a buffer space between the home s interior and the outdoors.
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.
One or two layers of drywall should suffice.
But it might make sense if you re converting the garage to living space.
A lot of homeowners want to turn their attached garage into a workshop so insulating the garage attic and door is a must if you plan on doing something similar.
Yes you should insulate your attached garage if.
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.
Although it won t cut down on the noise insulating the attic of your garage will make it possible to heat or cool the space with a small space heater or window air conditioner.
When you should insulate the 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.
Spray foam is excellent for both r value and for air sealing.
If there is ni separation the yes insulating the garage attic would be the least you can do.
Insulating an attached garage has some special considerations that you must address differently then a unattached garage.
The most important issue is that attached garages must have a system in place to keep carbon monoxide co from a running vehicle inside the garage from filtering through the walls and ceiling into the house.