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.
Insulating your garage attic.
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.
You can also get loose fill fiberglass which it suitable for blowing into a garage attic space above a finished ceiling.
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.
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.
If you live in sunny states like arizona texas and florida insulating a garage attic is a must if you want to keep your garage cool enough to withstand for short periods of time.
Fiberglass is the most commonly used type of insulation in garages just as it s the most popular type in homes.
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.
However if you plan on spending any real time in your garage meaning hours or more you are going to need a lot more than garage attic insulation to make the temperature manageable enough to withstand for long periods of time.
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.
Cut foam insulation to size now that you know the dimensions for each panel on your garage door cut the foam insulation to size.
A contractor will come and open up a hole in the wall pump in a cellulose insulating material and then patch up the opening.
If you already have drywall installed around your garage but don t have it insulated then blown in insulation may be the answer.