Ext. Foam, I hate to ask this but…
razzman
| Posted in Energy, Heating & Insulation on
I’ve never seen an affirmative reply here as to applying and sealing exterior foam on wall studs for insulation value and doubling as a rain plane, at the same time placing fiberglass batts between the studs and the standard 6 mil poly vaporbarrier.
Is the concept of creating a troublesome double vaporbarrier now also a mute point in insulation strategies?
Reason I ask is I recently watched a video presentation of this on the HGTV website a few have been brandishing around on here.
http://www.hgtvpro.com/hpro/pac_ctnt_ihdr/text/0,,HPRO_20976_28891,00.html?cat=4&vid=832
be just don’t know what to say
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‘Nemo me impune lacesset’
No one will provoke me with impunity
Replies
Greetings r,
This post, in response to your question, will bump the thread through the 'recent discussion' listing again tho' it ain't going to be worth shid to do so.
Perhaps it will catch someones attention that can help you with advice but don't bet on it.
Cheers
'Nemo me impune lacesset'
No one will provoke me with impunity
LMAO..
sure do it all..ya can't have too much insulation..be nike and just do it.
Spheramid Enterprises Architectural Woodworks
That seems like bad practice to me- I think Kraft paper (a vapor retarder) would be a better material for that application. However, where I live, the vb should be on the inside anyway, so. . . When it comes down to it, water vapor carried by air movement is a much more important factor than vapor transmission through drywall when the air isn't moving through the wall. But no wall assembly is perfect, some air will move into the wall cavity, and some moisture will enter from the outside, so where is it supposed to dry to?zak