With all due respect to DuPont Tyvek I have gone with Prime Wrap for 1/3 the price.
Also got lots of insulating board from my Uncle Bob.
-
This website is the ramblings of The Pithole Hermit, living on his land in a cabin, off-grid, in northwest Pennsylvania.
Includes wild edibles, farming, primitive living, weapons systems and other off-grid subjects. And a few electronic projects along the way.