EcoRenovator - View Single Post - Affixing insulation board without thermal bridges?

jeff5may · 10-24-16, 06:08 PM

If you are using the foil-faced polyiso board, it makes for a pretty good vapor barrier. If you tape your seams on the inside, that counts as a vapor barrier. Make sure not to inadvertently build a vapor barrier sandwich.

10-24-16, 06:08 PM	#6
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,428 Thanks: 431 Thanked 619 Times in 517 Posts	If you are using the foil-faced polyiso board, it makes for a pretty good vapor barrier. If you tape your seams on the inside, that counts as a vapor barrier. Make sure not to inadvertently build a vapor barrier sandwich.