Here in this photo, Fiberglass insulation has been infected by moisture and mold. Fiberglass Insulation is porous and absorbs moisture which can not only lead to mold issues, but an inability to retain heat.
Crawl Space Mold & Rot can become a real problem for insulation if not treated properly.
Basement Systems of NY provides mold control in the greater areas of Newburgh, Middletown, Poughkeepsie and Spring Valley.