Applying Vapor Retarder to Piers
Lindaloowho
| Posted in General Questions on
Is there an optimal height for sealed vapour barrier on piers in an encapsulated crawl? (This crawlspace does not have a direct capillary break between concrete and wood members.)
Also, on the interior rigid foamed walls of the crawlspace perimeter, should I run up the wall with vapour barrier as high as the floor assembly?
This property is in Southern Ontario with a wildly varied climate. From -25 degree Celsius ice storms in the winter to +35 degree Celsius days with high humidity in the summer. No termites in our area, but carpenter ants ARE a problem. Thanks in advance!
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Replies
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Hi Linda,
This Fine Homebuilding article should be helpful (https://www.greenbuildingadvisor.com/app/uploads/sites/default/files/Sealing%20a%20Crawlspace.pdf). It seems the installer wants a reliable anchor point. Everything (top of walls and around piers) has to be sealed with caulk and/or tape. Wall liner goes in before floor liner.
Thanks a tonne, Steve!