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Tape/seal all visquene joints (crawl space vapor barrier)?
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| Default User 2006-05-27, 7:21 pm |
| This new house I bought has 8 mil black visquene down over a bed of chat
gravel (limestone type). The coverage is pretty good, and they used metal
U-spikes to join the visquene pieces where they meet at seams, etc. Would
it be worth the time to seal the seams better with tape or some sort of
sealant? The visquene is attached to the crawl walls via the u-spikes as
well (tagged into the sheathing on the block wall).
This is a closed (no vents in the block walls) crawl space that is
conditioned via HVAC registers coming off the main supply plenum. No return
air is drawn out of the crawl for the HVAC, the crawl is simply supplied
conditioned air via the registers.
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| Default User 2006-05-27, 9:21 pm |
| Did some research and seem to have answered my own question. Looks like
I'll be buying some Duct Mastic and going to work on the seams :~()
I found tons of good info on crawl spaces here:
http://www.crawlspaces.org
Most of the grant money for the research they conducted came from US Dept of
Energy.
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| tbasc@bellsouth.net 2006-05-27, 9:21 pm |
| That's an interesting looking web site.
You might want to look at Building Science Corporation web site.
In Charleston SC," the low country", with high water table and moisture
in general, this is an important issue. Don't forget to seal the poly
to the surrounding masonry and consider a relief stack if you are
concerned about radon.
TB
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| tbasc@bellsouth.net 2006-05-27, 9:21 pm |
| That's an interesting looking web site.
You might want to look at Building Science Corporation web site.
In Charleston SC," the low country", with high water table and moisture
in general, this is an important issue. Don't forget to seal the poly
to the surrounding masonry and consider a relief stack if you are
concerned about radon.
TB
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