Best Vapor Barrier For Garage Ceiling

If you re using old uninsulated doors pick up a retrofit kit that add insulating panels.

Best vapor barrier for garage ceiling.

If you live in a cold climate place the vapor barrier between the interior of your home and the insulation. The traditional way to insulate the walls and ceiling of a typical garage is to install fibreglass batt insulation in the walls and attic space followed by a six mil poly air vapour barrier and drywall. Whether or not you need a vapor retarder hinges on three main factors your climate your home and the location of the wall you re insulating. Should you put a vapor barrier in an insulated ceiling or not.

Consult building inspection offices for local recommendations. The most important issue is that attached garages must have a system in place to keep carbon monoxide co from a running vehicle inside the garage from filtering through the walls and ceiling into the house. A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor during the cold winter. In very cold climates the use of polyethylene plastic vapor barriers between insulation and interior wallboard may be beneficial provided all air gaps into any wall and ceiling cavities are also blocked.

Whether your vapor barrier is a facing or a film it must be placed on the warm in winter side of the wall. Insulating an attached garage has some special considerations that you must address differently then a unattached garage. So you don t need a vapor barrier in the garage ceiling. And the ceiling acts as a enough of a vapor retarder.

First of all a garage is not a signicant source of vapor as it is not occupied that much and you don t cook or bath in in it. The reasons go something like because you have to let the moisture escape or because the house has to breathe out the top what do the experts say. To know if you need a vapor retarder ask yourself a few basic questions. This is normally done because it s the most cost effective method to achieve the desired level of comfort and ease of installation.

If you re adding new garage doors be sure to install insulated options. Unless you have converted your garage into a kitchen a bathroom a laundry room or a space that generates a lot of moisture even for that a dehumidifier can absorb all the moisture in the garage to keep the air dry.