EcoRenovator - View Single Post - Superinsulation retrofit with rigid foam-anyone done it?

Ryland · 07-25-11, 08:41 PM

One point that I forgot about is, apparently if you wrap your house in foam in a humid enough climate then you either need to make sure it's super tight and go with the 4" or more, or make sure it can breath and drain, because if you just wrap it in plastic, or a small amount of foam you can create a water tight condensation point on the inside, get 4" of foam or even more and the inside of that foam stays warm enough in the winter that water will never condense on it.
It helps to fill out the user profile a bit so we have an idea of where you live and what issues you are dealing with.

07-25-11, 08:41 PM	#5
Ryland Master EcoRenovator Join Date: Mar 2009 Location: Western Wisconsin. Posts: 913 Thanks: 127 Thanked 82 Times in 71 Posts	One point that I forgot about is, apparently if you wrap your house in foam in a humid enough climate then you either need to make sure it's super tight and go with the 4" or more, or make sure it can breath and drain, because if you just wrap it in plastic, or a small amount of foam you can create a water tight condensation point on the inside, get 4" of foam or even more and the inside of that foam stays warm enough in the winter that water will never condense on it. It helps to fill out the user profile a bit so we have an idea of where you live and what issues you are dealing with.