How to ventilate a crawlspace - PROcast Podcast for PROs

Construction Podcast 28: How to ventilate a crawlspace

Building science expert Justin Wilson talks with host David Dovell about how to ventilate a crawlspace, explaining the damage moisture can cause and how it negatively affects indoor air quality — what gets in the crawlspace, gets in the house. Wilson, vice president of Construction Instruction, gives advice on how to condition crawlspaces, most importantly filling any cracks in the walls and insulating with rigid foam. Plus, he says contractors should cover the entire floor with a concrete slab or polyethylene vapor retarder so ground water can’t seep in.

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