Insulating Detached Garage Ceiling

Make your old detached garage into a more habitable place by adding insulation to help keep it cooler in the summer and warmer in the winter.

Insulating detached garage ceiling.

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. I wrote a tutorial on how to waterproof and seal your garage walls using drylok. If you didn t do that before you put the frame up you can still do it now although it s going to be. For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating.

And don t forget to take flooring into account. The first decision to make is to determine if you want a double or single detached garage. Don t insulate your garage walls and ceiling without insulating the big garage door too. Insulating the ceiling is the most important part of the garage because heat rises and escapes through the roof.

When constructing insulating a detached garage it is usually a good idea to add enough space in the back for storage and tools. 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. 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. Exterior walls if your exterior walls are constructed from 2 by 4 inch studs the most insulation that can go into the wall while retaining its r value is r 13 or r 15 as these are both made to fit a cavity.

You won t be working in a huge space unlike your main house an empty cold attic or a wide unfinished basement. How to insulate an old detached garage. If you are insulating the garage ceiling not only by the truss level but also up by the roofline then you must leave at least 1 1 2 to two inches of air between the fiberglass and the underside. How to insulate a garage door.

There should be a continuous ridge and soffit ventilation. Last chance to waterproof your wall. 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. Here s my step by step process for how i added insulation to my garage.

Insulating a garage door can be more involved than insulating the walls and ceiling. Whether you opt for spray foam blown in or fiberglass batts for your insulation it s likely you won t need a whole lot to fully insulate your entire detached garage. Keep in mind that the structural metal ribbing of garage doors is an excellent conductor of heat and this typically.