Q&A / 

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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A vapor barrier is essential to stop water vapor from the soil from penetrating through your basement and crawl floors and walls. Vapor barriers of polyethylene have been used as a vapor retarder for some years now, but it has limitations. Newer high performance, high density polyethylene sheeting is the key to stopping water vapor from finding its new home in your wood floors, insulation, or carpeting.

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Vapor barriers used beneath ceramic tile are not ordinary plastic poly vapor barriers. These high performance vapor barriers keep water out with two layers of materials. Here are some vapor barrier manufacturers.

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Water vapor is constantly trying to leave your crawl space. It is very hard to vent and remove this condensation. A crawl space vapor barrier may be the best way to stop the water.

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