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Old 08-22-2021, 12:52 PM   #41
John Mercier
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Zip is OSB with the WRB (think Tyvek, Typar, Rexwrap, etc) already applied.
The problem is that it has more seams to tape, it is harder to flash for penetrations like windows and doors, and if the outer coating is damaged in any way... and not taped over... it will take in water like an OSB with no WRB protection.

https://www.qualitybuilt.com/resourc...pros-and-cons/

If you look toward the bottom of the article, you will see pictures of application issues for each.
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