I don’t know if anyone as any experience using Tyvek? I’ve been doing some reading on it since I saw this post. A quick read says that it allows water vapor and gases to pass through and is considered “breathable”
“ Tyvek® is breathable, which means water vapor and gases can go through Tyvek®. The moisture vapor permeability of Tyvek® is much higher than that of plastic films. Compared to most textile fabrics, the air permeability of Tyvek® is low. Customers should evaluate Tyvek® in their specific application.”
https://www.dupont.com/tyvekdesign/design-with-tyvek/dupont-tyvek-faq.html
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That’s the link from the Q/A page. It also covers use with chemicals and some other “fun” facts about it.
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Above link is from the forum that talks about the same topic of discussion here. May be useful
