The Johns Manville R-11 Kraft-Faced Fiberglass Insulation Batt is a revolutionary insulating material that is ideal for controlling moisture of exterior walls. It is available in pre-cut sizes that make them suitable to fit in different types of standard wall cavities.
How thick should garage door insulation be?
Panels most often range from 1/2 inch thick (R-3.3) to 1 inch (R-6.5). Foam board often is faced with aluminum or vinyl. ($20 for a 4-foot-by-8-foot sheet that's 1 inch thick.) Reflective insulation.
Which way should insulation face in a garage?
You can use either faced insulation or unfaced insulation. However, if you use an unfaced insulation you will need to add a plastic vapor barrier over the garage walls after installing the insulation. If you used faced insulation the paper side should face the interior of the garage.