Windows on Washington wrote:
It is preferable to caulk the flange but you should be okay with the sealed flanges via the membrane tape.
Don't caulk the Tyvek as you can trap moisture against the home in some cases.
Have him caulk the remaining units.
Thanks WOW!!! That was a fast response!
If it is bad to chalk between the tyvek and the sheathing then should the membrane not be attached directly to the wood on the top of the sill? Would it be better to have the tyvek between the membrane and the wood on the top of the sill?
Should I have him caulk between the Tyvek and the foam too?
I was just reading a thread on the web where two people were arguing on what should go on the house first, Tyvek or the foam.
My contractor stated Tyvek should go first. He was telling me to save money by not using the 1/2 foam at all as the 3 r value would not do much anyways. Most ppl here in the north east use the foam, so I spent the extra money on it. Hope it was the right decision.
I imagine that the caulk will ooze out the nail holes even if used sparingly. Wouldn't this make the membrane not stick to the fin?