Crawl Space Vapor Barrier Detail

Per foot is usually the best thing you can do to reduce crawlspace moisture.

Crawl space vapor barrier detail. Complete guide for installation of crawl space vapor moisture barriers 10 and 15 mil thick. When you combine a crawl space vapor barrier with a waterproofing system now you have the ultimate moisture protection of the crawl space from both liquid water and water vapor before it has the chance to enter your building. This is accomplished by putting into place a vapor barrier that covers and seals surfaces.

Crawlspaces should have a continuous sealed groundcover of vapor diffusion resistant materials such as taped polyethylene or preferably a thin poured concrete slab over polyethylene with perimeter and control joints sealed. The guardianliner is a vapor barrier designed to match up in appearance and performance with the cleanspace brand head to head. More recent thinking from building scientists dictated that crawl spaces should be sealed insulated and installed with a vapor barrier.

Stego industries cad drawings are merely a guide. Laying out rolls of ordinary sheet plastic. Looking for an affordable crawl space liner in the 20 mil class.

Cover the dirt crawlspace with a plastic moisture polyethylene vapor barrier. Where discrepancies arise local building codes astm e1643 aci 302 360 and structural engineer s recommendations take precedence. A debate ensued and because some builders are slow to change many foundation vents continue to be installed.

Overlap any seams and tape them. Although lengths and widths are different the barrier s formula is comparable. Prevent the infiltration of water vapor into the crawl space.

This white vapor barrier can be applied to an existing home s crawl space or it may be added during construction. Sloping the soil away from your home at about 1 2 in. Mollie from denver co on 7 18 2014.