Years ago I heard of a builder in New
Hampshire who installed polyethylene
vapor barriers in houses and then cut
them with a razor knife so "the house
could breathe." Foolish and selfdefeating
as that may seem, misconceptions
about moisture movement in
structures and the damage that moisture
can cause still abound. If after
reading countless articles and attending
numerous workshops you still
aren't sure about the difference
between vapor pressure and relative
humidity, or you pay careful attention
to stopping diffusion but don't plug up
cracks, Controlling Moisture in Homes
is what you need. It's probably the
best little primer on the subject I've
seen, although somewhat overpriced
for its size.
In 36 pithy pages you'll learn how
moisture moves,