Air barrier on top of Roxul insulation
From everything I read, I need an air barrier on top of the roxul insulation we have in a vented attic space we are renovating. I put the roxul down and am struggling to find a cheap, easy way to create an air barrier without causing moisture issues.
I'd love to buy some rigid foam to help the Rvalue, but am worried about creating a moisture issue.
Tyvek is expensive
Are any of these cheap ideas viable?
I had been thinking of going to an appliance store and begging for free sheets of cardboard, but never got around to it.
I bought the red paper which goes under flooring, but it doesn't seem durable.
I have a few pieces of sheetrock (with some mold spots on them because they were in a workshop) I am ready to put at the curb, along with several old doors.
Any thoughts would be appreciated...
This is a dormer area and there might be alot of air movement to get to the baffles under the cathdral ceiling in the neighboring roof on it's way to the ridge.
Posted Tue, 10/23/2012 - 16:58
Edited Tue, 10/23/2012 - 17:59
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