 Good morning. I'm doing good. I just made some notes. I get this question asked a lot of me, and this is a question people always ask me. Should a crawl space be completely sealed? And I tell them, yes, you should. All crawl spaces should be completely sealed and insulated from moisture in the air and from the ground. It makes the home a healthier place to live and breathe. Remember, 50% of the air you breathe is coming from your crawl space.