Duct Liner is a thermally bonded HVAC insulation that offers superior acoustic and thermal performance. Made from natural fibers, Duct Liner contains no fiberglass and does not itch or cause skin irritation. The fibers used to manufacture Duct Liner offer excellent sound absorption properties. The surface is overlaid with a durable, fire-resistant black facing providing additional strength to the product. Both the insulation and the facing are treated with an EPA registered anti-microbial agent.

Duct Liner is used primarily as an acoustical liner designed for HVAC sheet metal ducts to absorb unwanted noise from multiple sources. Duct Liner also reduces heat gain or loss. Duct Liner contains no harmful irritants and is safe to handle and install.