Specifically, are they both dangerous to human health?
Possible Duplicate: Mold remediation in crawlspace House with crawl space has mold and mildew on the sub-floor. I've determined the cause is no vapor barrier and a leaky pipe and there is ...
Just bought a 25 year old home that has improperly installed insulation in the crawlspace. The insulation is fiberglass rolls with a paper backing, and is installed with the paper facing down, toward ...