Q&A / 

Shane lives in Burien, WA. He's wondering about putting rigid foam on his house. He's also not sure about house wrap. "Can I put rigid foam on the exterior of my house and does the house wrap go on top of the foam or under the foam?" Shane, you can put rigid foam as an […]

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Missy Merritt, who lives in Ocean View, NJ, has a problem in her pool house. " I have a pool house that was build without a foundation. You have to step down to the pool house. This is my only guest room and it is very musty smelling. The pump from the well is in a […]

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Ruth Hendrickson, who lives in Lincoln, MA wrote to me with a very fascinating question: "My wood frame house built in 1927 has wood shingles outside and plaster over rock lath inside. No wall insulation. Probably balloon construction. Is it safe to put insulation in the walls, or will I get water vapor condensing in […]

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Janice Rozier, who lives in Folkston, GA, sent me a fascinating email: "I'm having an addition built onto my existing brick home. The question I have is about the house wrap vs vapor barrier. The addition is framed wood structure with cement siding, (already installed), cathedral ceiling, and concrete floor. Do I need the vapor […]

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Tar paper has been time-tested as a weather barrier. Normally used on roofs, tar paper makes a great barrier for the exterior walls of your housing, building or shed. Tar paper keeps the wood beneath it dry.

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Tim Carter shows how to use Dow closed cell foam insulation board to insulate the floor of an outdoor shed. Discover the additional benefits of the foam board in this video. Also watch for the ingenious tabs used to hold the insulation in place.

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A vapor barrier is essential when building or remodeling. Tim Carter shares some insights about vapor barriers and tips on vapor barrier installation for your next project.

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Wine room humidity and temperatures must be maintained for wine to age correctly. It is important to have a vapor barrier to trap the water vapor in the wine room so it does not migrate to other parts of the house. This is especially true if one or more walls of the storage room are exterior walls of the house.

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Crawl space ventilation became essential to avoid moisture damage in modern, energy efficient homes. Crawl space vents may now be eliminated with newer high performance vapor barriers. Convert your crawl space to an unventilated one with a quality vapor barrier, and minimize dampness, temperature swings, and gain storage space.

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