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In a heated crawlspace or one with uninsulated ducts or water pipes, the walls should be insulated.
R-19 PINK fiber glass insulation or R-25 insulation work best for this.
| Recommended Insulation Products: |
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R-19 |
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Fiber Glass Wall Insulation, unfaced |
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6 1/4" Thick |
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R-25 |
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Attic & Crawlspace Insulation; Unfaced |
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8" Thick |
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Installation: |
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First measure and cut small pieces of unfaced insulation and
fit them snugly into the band joist. |
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At a minimum, the insulation should be cut long enough to completely cover
the crawlspace wall. It is best to carry the insulation out onto the ground by 2 feet or more.
Use long furring strips and standard nails or use cap nails to attach the insulation to the wood plate
at the top of the foundation wall. When attaching the insulation try to
minimize any compression by only driving the nails part way into the plate. If using the wood furring
strips, pre-nail the wood so it is easier to install.
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After the insulation has been installed, a 4- or 6-mil polyethylene vapor retarder
should be spread across the entire floor. It should be placed under the insulation, then - to hold everything in
place - rocks or bricks can be set on top of the insulation that extends out on the floor. |
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