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Right – A heavy polyethylene sheet covers the floor of this crawlspace providing a capillary break and vapor barrier to keep soil gases out of the house

Right – A heavy polyethylene sheet covers the floor of this crawlspace providing a capillary break and vapor barrier to keep soil gases out of the house
Display Image: Righ--AHeavyPoly.jpg
Author(s): Gilbride
Organization(s): PNNL