Hi guys, This is probably the wrong format for seeking out the answers I need but in all honesty I’m getting desperate and appreciate any help you could provide me.
Two months ago we had a fire. The insurance company wants to strip the drywall and existing insulation out, then seal the studs and sheathing with an oil based Kilz primer. This also applies to the attic where they will be sealing the underside of the roof and the 2x4 trusses. They then want to come back and install kraft faced insulation batts.
My concern is that Kilz doesn’t even seem to test for vapor perms and that I am going to have problems in 10 -15 years due to the walls being sealed #1 on the wrong side of the insulation but then also that the kraft facing will slowly make the problem worse.
In the attic the same situation will occur on a larger scale where the structure will be sealed and yet there will still be a kraft paper under the insulation trapping moisture up there.
So #1 is this a valid concern. We live in Chicago so we do get pretty cold winters which vary between very humid and very dry air.
I’m trying to get the insurance to spend $7000 to do a combination of 1" of CC foam and 2.5" of OC foam in the walls and 6" of closed cell to encapsulate the attic sheathing and trusses. This should make both assemblies pretty air and moisture tight. I do understand that I will most likely need a dehumidifier to keep the house under 50% humidity.
I would greatly appreciate any insight, I have reached out to a bunch of folks and they either look at me like I am crazy or want $5000 to talk which I honestly can’t do right now.