Solving issue of frost/moisture on inside of drywall — Insulators’ proposed solution
We have a house that was built in 2008 and has had frost/moisture on the inside of the house where we have a bumpout that contains a bedroom closet, bathroom, and another bedroom closet. Our house is located in region 4A.
We had an energy audit performed and had the auditor investigate the situation. Per his report, “The condensation problems on the west side of your house are incredibly abnormal. We’ve seen light condensation on walls during cold snaps but never frost on the inside of a wall.”
This bumpout is not a cantilever but it is closed off from attic access, however there were two soffit vents. The insulator has proposed filling the open area with loose fill fiberglass completely and sealing the two soffit vents. They will cut holes in the zip board in the attic so they can access the cavity and they plan on leaving the holes open after they fill the cavity. FYI there are batts currently in this cavity.
Please see the pictures I have attached of the actual house as well as a couple of drawings of the current situation and the proposed solution. We also have a cantilever that is also leaking and they are proposing the same solution.
We want to do as much as possible to minimize the potential for moisture/mold as a normal precaution, but with our son already having numerous health issues, this makes it even more important. Does anyone see any potential issues with this solution? Thanks in advance.
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