No fiberglass insulation in walls, ceilings or in HVAC plinth and ductwork which breaks down over time transmitting a toxic dust that leads to pulmonary disease. Instead we use all solid insulation which when cured puts off no VOC’s and is a superior thermal mass as compared to traditional fiberglass insulation in slowing transfer of heat either from the outside or inside and is an ex... https://www.ecosustainablehomedesigns.com//healthy-features/