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.

When selecting barrier products for air and vapor protection, experts counsel that there’s never a one-size-fits-all approach. Each project must be evaluated based upon climate, construction ...

Finally, depending on thickness, moisture barriers can cost between $0.30 and $0.50 per square foot, and this will go much higher if you include installation costs.

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.

A new technical brief from SPRI, the trade association representing the manufacturers of single-ply roofing systems and related component materials, addresses construction-generated moisture and its ...

If the vapor barrier is run up the crawl space wall to the level of the floor joists, termites could build mud tunnels on the foundation wall that would be hidden from view.

The average cost of vapor barrier plastic is between 25 cents to $1.50 a square foot. You’ll also need to purchase the tape that seals it and specialty stakes.