Performance+ Duct Liner Supports IAQ, Acoustics, and Thermal Control

This duct lining solution is formaldehyde-free and Certified Asthma & Allergy Friendly.
Dec. 2, 2025

Performance+ Duct Liner is Knauf Insulation’s HVAC acoustical and thermal duct lining solution. Engineered to support better indoor air quality, acoustics, and thermal control in sheet metal ducts, it’s the only formaldehyde-free line of HVAC fiberglass insulation products in its category. The fiberglass duct liner has a durable airstream surface that resists dust and microbial growth while maintaining a clean, finished appearance inside the ductwork. The durable mat-face allows for duct cleaning.

The liner is manufactured with Knauf’s ECOSE Technology, a sustainable, plant-based binder that contains no added formaldehyde. It meets GREENGUARD Gold standards for low emissions and is Certified Asthma & Allergy Friendly by Allergy Standards, Ltd. The liner is also code-compliant, meeting ASTM C1071, UL 181, NFPA 90A, and NFPA 90B standards.

This product is a 2025 Product Innovation Award winner.

Judge’s Comment: “I am glad to see the industry responding to concerns about historically standard chemical use, such as formaldehyde.”