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.
Insulating ceiling over garage.
But since it s a floor to the room insulating it won t have as much of an effect as the room s ceiling.
If you have a bedroom directly above the garage that room will experience the wrath of the weather outside if your garage does not have proper insulation.
Insulating a garage door can be more involved than insulating the walls and ceiling.
Insulating the ceiling is the most important part of the garage because heat rises and escapes through the roof.
Of course adding insulation inside a ceiling is a very complex project that your average homeowner will be hesitant to embark on.
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.
Forgetting to add a vapor retarder.
If you have a conditioned room over your garage it would be a good idea to insulate the garage ceiling if it s easily accessible.
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.
Use a special foil backed blanket insulation to fit over the inside of the garage door.
Most garage door insulation has an r value of between r 8 and r 12 because it is so thin to fit the space.
This will make the garage space more appealing to work in and it will allow you to store a greater variety of items that may currently be cluttering up your house.
This can be done through blown in insulation and unfaced or faced batt insulation.
To insulate the floor of the room above the garage seal the space between the floor of the room and the ceiling of the garage and the top plate and the header joist with insulation.
How to insulate a garage door.
Since a garage is generally used to store lawn equipment and vehicles that have combustible fuel it is better to stay away from this type of material.
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 an finished space over the garage insulate at the garage ceiling.
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.
The other option is purchasing a pre insulated garage door that may have a.
If there is no finished space insulate at the interior wall.
This will help to prevent all sorts of garage floor condensation problems.
Garage ceiling insulation is cheap accessible and easy to install.
This adds insulation to the garage door without impeding its functionality.