Exterior walls and floors.
Best insulation for garage walls.
Last chance to waterproof your wall.
Check behind knee walls which are walls between living spaces and the garage or attic.
For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating.
Insulating a garage door can be more involved than insulating the walls and ceiling.
As the main barrier to the exterior adding insulation on your garage door is strongly recommended for every homeowner.
And don t forget to take flooring into account.
This is especially true for anyone that has an interior wall connected to the garage.
Insulate the garage s ceiling by using the recommended r value for your area as advised by the department of energy s oak ridge laboratory.
Here s my step by step process for how i added insulation to my garage.
If you d prefer to cut costs and stick to the diy option for insulating a garage door we recommend buying a garage door insulation kit.
If you didn t do that before you put the frame up you can still do it now although it s going to be.
Internal wall insulation iwi on a garage conversion.
If the walls and ceiling are closed in consider using loose fill insulation as this form of insulation uses a machine to get the insulation where it needs to go through a hole in the sheetrock.
Once the insulation is in the wall and sealed up with drywall it is not easy to change out.
A contractor will come and open up a hole in the wall pump in a cellulose insulating material and then patch up the opening.
Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation.
The other and probably more common solution is to add the insulation to the inside of the garage.
You can insulate the walls ceiling and door of the garage to the highest r value possible but if you fail to fill those air gaps you ll still be wasting a lot of heat.
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.
How to insulate a garage step by step.
The easiest option is to buy an already insulated door.
Adding insulation to your garage walls is going to be a little more complex of a project.
When you are insulating two by four 2x4 and two by six 2x6 framed exterior walls and want to use fiberglass insulation what thickness is best the question becomes all more critical because of the permanent nature of wall assemblies and wall insulation.
I wrote a tutorial on how to waterproof and seal your garage walls using drylok.
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 insulate a garage door.