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Old 03-11-2012, 02:04 PM   #37
builder, anti-builder, rebuilder -- Moderator
Join Date: Mar 2009
Location: oahu
Posts: 13,143
No need to defeat the foil if it's got a perm rating of 9. It's not a vapor retarder at that rating that you need to be concerned about.

"the road to hell is paved with osb, mastic, pre-mixed latex 'grout' or 'thinset', "

Last edited by dhagin; 03-11-2012 at 02:13 PM. Reason: +last bit
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