Vapor Barrier Calculator
Rolls of 6-mil poly sheeting for under a slab, deck, or crawlspace.
Poly rolls
1 roll
Area to cover
600 sq ft
With overlap
690 sq ft+15% for 6" overlaps & waste
6-mil poly rolls
1 rolleach 10'×100' = 1,000 sq ft
Cost (est.)
$70~$70/roll
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