Are there any gotchas to be careful of in having spray foam insulation,
e.g. GacoGreen or similar "2 lb" quality, under the floors in a home w/
40-yr-old house in Pac.NW, rancher, 3 "levels" dropping approx. 4 ft
each time due to hill location, approx. 4ft high in most places. 16"
o.c. joists. Dirt crawlspace, very clayey soil, had ground moisture (not
wet, but close to it) but now with added vents, two layers of vapor
barrier on ground in winter, but pulled back and fans blasting in
summer, it's getting dried out. Mostly hardwood floors, and they're cold
When I renovate kitchen/bathrooms the plumbing will change, but in both
cases I want to put in radiant floor heating so I might do fiberglass
just in those areas.
Because of the moisture I'm leery of doing fiberglass, and from what I
have read in my research, the spray foam seems like it might be a better
solution from both moisture and sealing air leaks. But are there any
gotchas I should be considering?
I appreciate any comments.