Crawl Space Dirt Floor Insulation

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Crawl Space Dirt Floor Insulation. If your crawl space has a dirt floor, you first want to insulate it just like any other crawl space. If you have a closed crawl space, insulating between the joists is acceptable but we recommend insulating the foundation wall for even more comfort.

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If vents are not present in your crawl space, insulate the walls instead of the joist bays. To prevent rodent infestations, lay down a piece of sheet metal on top of your crawl space insulation materials. Cover the walls with insulation from the sill plate to the plastic covered dirt floor.

There is currently poly on the dirt floor and duct work.

If you are using foam, cut it in sheets to fit properly over the floor surface. Cover the walls with insulation from the sill plate to the plastic covered dirt floor. But crawl spaces with a dirt floor also need some extra attention. So the answer to the question should a crawl space be insulated is yes, they most certainly should be.