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 ins… ...

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.

Air Barrier / Sealing Air barriers are materials and sealant that don’t allow air to enter or leave the building due to simple air pressure differential. We want to use door sweeps and weather ...

But in some cases, water vapor builds up in tight houses until it forces its way through the inside wall surface, the vapor barrier and insulation, hitting the back of the cool sheathing, then ...

I need to add a vapor barrier and wonder about the best one. The foundation consists of granite slabs and rubble stone. It’s got small gaps in it where I see daylight.

Learn the difference between these two popular types of insulation to help determine which option is best suited for your home.

Vapor-barrier paints are less porous than standard latex and stop some moisture. A coat of shellac or glistening polyurethane helps too. But surface coatings don’t work as well as film barriers.

News Home and garden 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.

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 ...

I’d go with a cross-laminated vapor barrier that’s often specified for commercial and institutional work. Find one that meets or exceeds the ASTM E 1745 standard.