Search:

Forgot to mention that the condensation was occuring when the A/C was on. There is no condensation when the heat runs.
This is most likely a summer/high humidity related issue.

Vented.

The drainage problem & repairs were done a couple of months ago. The white powdery substance is on the outside of all the ductwork. There was some white mildew (dry rot?) on some joist as well. We've...

The ductwork is wrapped externally where it branches off the main duct. The main duct is lined inside/outside.

The crawl has plastic vapor barrier. I corrected a drainage problem from the rear of the house where water was running down hill and collecting in the crawl. (Also had the rear deck removed from the...

What would be the main reason for insulated ductwork in a 4-5 foot crawl space dripping condensation be? The ductwork also has white powdery mildew on it. Would it be because of loose ductwork, high...