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John Mercier · 08-10-2021, 10:09 PM

Tyvek (a roof would be Epilay or Triflex) shouldn't trap moisture.
They are designed to allow water vapor to move from the inside to the outside.

08-10-2021, 10:09 PM	#6
John Mercier Senior Member Join Date: Jun 2021 Posts: 2,983 Thanks: 2 Thanked 529 Times in 435 Posts	Tyvek (a roof would be Epilay or Triflex) shouldn't trap moisture. They are designed to allow water vapor to move from the inside to the outside.