Duct Liner
CertainTeed has added ToughGard R rotary duct liner to its line of HVAC insulation products. ToughGard R combines a sustainable fiberglass mat with the thermal, acoustical and moisture control performance of the ToughGard liner airstream surface. ToughGard R is manufactured with a commitment to environmental stewardship as well as rigorous monitoring and energy management that reduces the amount of energy needed to produce it. The duct liner now features a sustainable plant-based binder that contains no added formaldehyde, acrylics or dyes and is Greenguard Gold certified for low chemical emissions. Its main raw material is sand, an inert, abundant and naturally renewing resource, and it includes a high percentage of recycled glass.