How to Insulate Crawl Space Walls
Insulating the crawl space walls in a building or home can greatly prevent heat loss. Since the heating and cooling ducts run typically through the crawl space, cold air will cool the heated air from the furnace before it even reaches the living space. Water lines are also typically run through the crawl space, and cold air in an uninsulated crawl space can cause the pipes to freeze and burst, resulting in water issues and expense. Does this Spark an idea?
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Instructions
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Inspect the crawlspace perimeter for utility lines like water, gas, cable and electric that pass through the outside walls. Spray expanding foam insulation around the gaps to stop air from passing through. Even a small gap can create sizable energy loss.
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Place small cut pieces of insulation in each of the band joist cavities. Cut the pieces of insulation slightly larger than the size of the openings so the pieces fit tightly.
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Level the ground of the crawl space if it is dirt. Place at least a 6-mil vapor barrier (polyethylene) on the ground of the crawl space. Spread it out and either staple it to the wood around the perimeter of the crawl space or use a hot glue gun to spot glue it to concrete around the perimeter.
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Using furring strips, place insulation vertically down the crawl space walls. The length of the insulation should extend 2 feet on the ground away from the wall. Continue to place insulation until all of the walls of the crawl space are covered.
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References
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