Daniel Levy specializes in construction, consulting, and training with autoclaved aerated concrete (AAC). He is building "Bellwether on Main," a mixed-use commercial and apartment project in Hillsdale, NY. The construction will be similar to his previous project, the Woodstock Passive House, which combined AAC with Foamglas™, rigid mineral wool, and cellulose insulation. Dan is a Certified Passive House Consultant, PHIUS Certified Builder., and LEED AP