Shell

Questions that require a more in-depth explanation require you to click on "Answer" and are marked with an *

Q: Should we be using ACH50 and percentage reduction guidance in estimating what the final blower door number target should be? 

A: No. See “When should I stop air sealing?”

Q: Should I use the “No need to ventilate” rate in the ASHRAE calculator as a guide for when to stop air sealing?

A: No. See “When should I stop air sealing?”

Q: When should I stop air sealing?

Q: Where should the pressure and thermal boundary be located for a mobile home after weatherization?