Q–I want to add insulation to my unused attic. At present there are half-inch-thick waffled batts of a dark excelsiorlike material between the rafters and over the plaster and lath ceiling. A… ...

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… ...

Conventional practice is to apply vapor barriers toward the warmer air of conditioned spaces. We assume the wall studs are about 3 1/2 inches thick, so R-11 batts are what's needed.

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.

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.

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.

New moisture-buffering plaster 'sucks up' water vapor. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2014 / 02 / 140203112128.htm ...

Vapor barriers are a crucial part of any moisture management system in a crawl space and are not difficult to install. If you're considering adding a vapor barrier to your crawl space, read on to ...

Crawl space vapor barriers are constructed from 6 mil or thicker polyethylene sheeting. The material is available in rolls at lumberyards and home centers.

The newly developed moisture-buffering plaster can in fact absorb 90 g of water vapour per square meter, measured by the standardized «Nordtest» method.