IdealSeal 777 is a high-performance, multilayer, total vapor barrier aluminum foil insulation laminate. The laminate covers and protects ductwork and piping insulation under a wide range of interior ...

Years ago, when few homes had insulation in their outside walls, no one worried about vapor barriers–there was no need for them. But now homes are better insulated, making it necessary to ...

The crawl space under my 1910 home is just exposed dirt and leftover building materials. I need to add a vapor barrier and wonder about the best one. The foundation consists of granite slabs and ...

Insulation generally isn’t an air barrier or a vapor barrier and air and vapor can move through it freely and easily. There are some exceptions such as closed cell foam (which is all three) and open ...

If you are constantly dealing with mold, moisture and musty smells in your home, be it in the bedroom, basement, or crawl spaces, you could benefit from a vapor barrier, professional contractors say.

Vapor Barriers vs. Air Barriers. Vapor barriers, also referred to as vapor retarders, are used to control water vapor, a gas, from entering the thermal cavity. Its ability to do so is measured in perm ...

Homeowners often ask if a vapor barrier is necessary for optimizing attic insulation and protecting their homes from moisture-related damage. The answer, however, isn’t one-size-fits-all.

Q. A lot of us with older (100 years) homes are getting energy audits with recommendations to blow in cellulose into the empty exterior wall cavities. I have read that without a vapor barrier ...

Ask The Builder: Vapor barrier and insulation in crawl space will mean warmer floors Sat., Sept. 9, 2017 This is a pretty normal creepy crawl space.

Question: The crawl space under my 1910 home is just exposed dirt and leftover building materials. I need to add a vapor barrier and wonder about the best one. The foundation consists of granite ...