Foam insulation

I recently bought a house in the Berkshires that has a crawlspace (part cement floor, part rock ledge, part dirt floor).  The previous owner had foam insulation installed in part… I recently bought a house in the Berkshires that has a crawlspace (part cement floor, part rock ledge, part dirt floor).  The previous owner had foam insulation installed in part…Read MoreGreenBuildingAdvisor