This product is on because of

Low-allergy materials (avoiding dust, mould, chemicals etc.)

Avoiding risk of heat stress or cold-related illnesses

Low or No VOCs (volatile organic components) or nasty chemicals

Good insulation for well regulated room temperatures
GreenStuf® Thermal and Acoustic Soffit Liner is designed to be installed to the underside of masonry and metal pan floors and ceilings to improve the thermal performance and energy efficiency of the building.