If you don’t understand what housewrap does and how it’s designed to work, you are likely doing more damage to your house than you are good. This article demystifies the functions of a housewrap, discusses the pros and cons of several brands, and answers both common and in-depth questions about these products. Sidebars discuss the growing popularity of rainscreen housewrap membranes and modern pneumatic cap nailers, and building scientist Paul Fisette presents an argument for the use of felt paper.
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