FPSF – subslab insulation

Hi folks,GBA lurker here making a first-time post. Parts of this topic have been covered but I’m hoping to consolidate notes and get some additional input.I’m in Portland, ME (AFI… Hi folks,GBA lurker here making a first-time post. Parts of this topic have been covered but I’m hoping to consolidate notes and get some additional input.I’m in Portland, ME (AFI…Read MoreGreenBuildingAdvisor