Research Report Download
Brick, Stucco, Housewrap and Building Paper
by
Joseph Lstiburek
—
last modified
2008/10/15
The manufacturers of housewraps have for years promoted the fantasy that water vapor in wall assemblies only moves one way – from the inside out. So, therefore, walls should be designed to “breathe” outwards. So, therefore, you should buy a highly vapor permeable housewrap. So, therefore, you should buy “our product.”
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