Insulating The Floor Above A Garage

Insulate ducts and plumbing and put them close to the floor.

Insulating the floor above a garage.

Adding insulation won t make your garage a perfect temperature by itself but it will take the edge off the freezing winters and the sweltering summers. When you have a room above the garage the floor rests on boards supported by joists. Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient. The options you have for the room in general are fiberglass batts blown in cellulose blown in cellulose injection foam and spray foam.

I recently received the following question from a reader. Check it out for more details and specific recommendations. Insulating rooms above garages. But since it s a floor to the room insulating it won t have as much of an effect as the room s ceiling.

Hi there after watching holmes on homes i was wondering when urbandale will use spray foam insulation on the above garage floor instead of leaving the gap with heat duct. Spray foam provides high r value and a continuous air barrier in one labor saving application. Spray foam insulation can be used to insulate the floor above a garage as well as the band joist. The best way to insulate the finished room over the garage is going to be just like any other room in your house insulate the exterior walls the ceiling or attic and the floor.

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. 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. If the joists are 10 inches deep the cavity can take high density r 30 insulation which is 8 1 2 inches thick more than enough for floor insulation. There is a big concern that if any.

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. Floor above a garage smaller room over a large garage. How to insulate a garage floor above a concrete slab. In reality insulation merely slows the transfer of heat through the insulated barrier wall ceiling floor etc.

I wrote a big article discussing whether you should insulate your garage. There is a school of that maintains that an unheated garage that is attached to the house may get some benefit from insulating the walls and ceilings of the garage since it theoretically offers an additional thermal buffer. A floor with ducts also should be insulated with a continuous layer of thick rigid. If hvac ducts are routed through the floor assembly the floor joists must be deep enough to install several inches of insulation under the ducts.

If the garage is open to the rafters the boards that support the roof use r 38 insulation between the.