What is the recommended thickness of a vapor barrier under a 18″ raised house in southern Miss.?
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myragold
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What is the reccomended thickness of a vapor barrier under a 18 inch raised house in southern Mississipi?
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Replies
You mean the floor joists raised 18" off the ground? On a concrete perimeter foundation? On piers? Is there framing or skirting around the base?
Margaret,
Assuming that you want to cover dirt under a house on piers, you should use polyethylene that is at least 6 mils thick. A thicker ground cover will be more durable than a thinner one.
Hold the polyethylene in place with bricks, stones, or a layer of sand. Be sure to install skirting to keep out cats and raccoons.