Insulating Pier and Beam house


Old 11-25-02, 02:55 PM
Robert Diaz
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Insulating Pier and Beam house

My house is built on Pier and beam giving me an approx 30" high totally open crawl space under an uninsulated 1 1/4" subfloor and then a wood floor on top of that. Is batt insulation the best way to go? Maybe covered by foam board? Which way should the paper go - to the house or to the grade? Any help is appreciated!!

Robert Diaz
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Old 11-27-02, 04:27 PM
Join Date: Nov 2001
Location: Taylors, SC
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Batt insulation would likely be the simplest to install. The paper usually faces the living space, because it is a vapor barrier. There is a product for holding batts in place under a house. They are along the lines of a plastic or metal rod looking affair that one pushes into place between the joists to hold the insulation up in place. You can get a batt that is wrapped in a plastic material that is manufactured to pass vapor so that you could use them under the house rather than the raw batts, if you already have a vapor barrier installed.
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