If you plan on using your garage for temporary activities like a mechanic or woodworking shop you would insulate both the interior and exterior walls.
Insulating a concrete garage ceiling.
If you didn t do that before you put the frame up you can still do it now although it s going to be.
And don t forget to take flooring into account.
Here s my step by step process for how i added insulation to my garage.
Just remember to use thicker r 40 insulation.
Then focus your attention on the bottom of the wall.
Insulating a concrete ceiling the space is under a garage that is part of the house.
The second is to use a coated foam sheet like the ones manufactured by kingspan or celotex.
Run a bead of silicone caulk along the bottom of the wall between the wood and the concrete.
How to insulate a garage step by step.
It s about time i had a better work environment.
This will help while you re up on the ladder.
So before insulating go around the garage with a can of low expanding spray foam and seal all gaps and cracks that let in the daylight.
If there is no finished space insulate at the interior wall.
Fumes can seep in underneath the wall framing where the wood rests on the concrete or block foundation.
The ceiling is concrete panels that lay over a steel beam in the center and on the foundation walls on the perimeter.
Consider all aspects of insulating your garage not just the walls but also the garage doors and the ceiling particularly if you plan to add a heating and or cooling system.
How to install insulation in garage ceiling for insulating your garage.
How to insulate a garage ceiling.
Insulating the ceiling of your garage involves the same process as insulating the walls.
I wrote a tutorial on how to waterproof and seal your garage walls using drylok.
There are two main ways to insulate a concrete garage.
For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating values.
Last chance to waterproof your wall.
The first is to use a fibreglass insulation much like the type found in any typical loft.
If there is an finished space over the garage insulate at the garage ceiling.