The 3 things I learned when I had my foundation repaired that shocked me: dust gets everywhere, zipper walls help

https://louisyuvc878.wordcanopy.com/posts/before-calling-3-things-to-know-about-crawl-space-encapsulation-with-foundation-repair

The 3 things I learned when I had my foundation repaired that shocked me: dust gets everywhere, zipper walls help, and covering returns keeps HVAC from spreading it.