To finish insulating your detached garage close up all cracks that are letting unwanted air inside.
Insulating detached garage roof.
In either case you will need to follow the general steps below to insulate your garage roof.
Measure the height and width between the framing in the ceiling and pre cut the pieces you ll need.
If you didn t do that before you put the frame up you can still do it now although it s going to be.
To get more insulation in the garage install a ceiling and provide access to the space between the ceiling and the roof.
Here s my step by step process for how i added insulation to my garage.
If you cannot find an insulation kit you need to choose which type of insulation to buy.
This will allow you to add the needed insulation.
If the garage is open to the rafters the boards that support the roof use r 38 insulation between the rafters at the roof if they are 10 inches deep.
Don t insulate your garage walls and ceiling without insulating the big garage door too.
If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.
Last chance to waterproof your wall.
You can buy insulation kits for standard metal garage doors or you can cut pieces of rigid foam insulation to fit each door panel section.
When constructing insulating a detached garage it is usually a good idea to add enough space in the back for storage and tools.
I wrote a tutorial on how to waterproof and seal your garage walls using drylok.
This will help while you re up on the ladder.
This is part 1.
How to insulate a garage step by step.
It s about time i had a better work environment.
There are two main types of insulation appropriate for use in garage roofs.
All it takes is to purchase the best type of insulation for your detached garage.
Nonetheless first determine if you can buy a pre composed insulation kit suitable for your garage.
Especially in older garages the wood around door frames and window sills may have warped or.
Then you ll measure and cut to appropriate lengths and staple and install the insulation to the areas in your garage that require it.
Insulating the ceiling of your garage involves the same process as insulating the walls.
Just remember to use thicker r 40 insulation.
A detached insulated garage can serve as a place for storage and tools maybe even a small shop but that shouldn t detract from the main purpose of housing the family car.