Insulating Garage Ceiling Vapor Barrier

In hot humid climates attics should not be vented and vapor.

Insulating garage ceiling vapor barrier.

If you live in a hot humid climate. After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one. When the house was built 10 years ago the walls attached to the house were done and the ceiling was drywalled fire code. Plastic vapor barriers should only be installed in vented attics in climates with more than 8 000 heating degree days.

I m considering insulating and drywalling my garage which already has insulated garage doors. Whether your vapor barrier is a facing or a film it must be placed on the warm in winter side of the wall. I want to insulate the ceiling in my garage. If you re using old uninsulated doors pick up a retrofit kit that add insulating panels.

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. Not every wall does. Vapor barriers keep the air moisture in your house from condensing in the insulated cavities. If you re adding new garage doors be sure to install insulated options.

If you live in a cold climate place the vapor barrier between the interior of your home and the insulation. In reality insulation merely slows the transfer of heat through the insulated barrier wall ceiling floor etc. My main goal is to keep it from getting much below freezing during the winter. You can forego the plastic and use a vapor retarder kraft faced insulation or latex ceiling paint in all other climates except hot humid or hot dry climates.