[Greenbuilding] Most permeable air barrier

[Ross Elliott]

I know Tyvek is way more permeable to water vapour than Typar, which are the only two choices available locally, but I'm building a sugar shack, which as its primary function is to dissipate a tremendous amount of water vapour. I don't want the water to condense on the ceiling air barrier, otherwise it may drip back into the syrup.  What's the absolute most vapour-permeable air barrier on the market, including those esoteric European membranes?


Ross Elliott
LEED-AP, RASDT, CPHC
President
Homesol Building Solutions Inc.
[cid:image001.gif at 01D09199.91152410]
53 Herriott Street, Suite 202-B
Perth, ON  K7H 1T5
(613) 466-0664
Toll-free: (844) 466-0664
Fax: (613) 466-0660
www.homesol.ca<http://www.homesol.ca/>
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