A friend had some mold/mildew in his crawlspace. I don't know if it
was on the structure of the house, or on the dirt, but he said that a
contractor came and sprayed the dirt with a chemical and then covered
the entire dirt with plastic.
What chemical do you think was sprayed on the dirt to inhibit spore
growth? How thick of plastic would need to be layed down? Have any
of you had this done?