Igloo Cellulose is a company located in Canada (Dorval, QC) and USA (Agawam, MA). For over 45 years, we have been manufacturing cellulose, a biosourced insulation material for thermal and acoustic insulation of buildings. Cellulose is renowned for its high thermal performance, particularly its superior phase shift. While heat takes around 5 hours to travel through an attic insulated with glass wool, it takes over 10 hours to travel through the same attic insulated with cellulose. This high phase shift guarantees thermal comfort indoors, in winter and summer alike.