Knauf Insulation E24875FSKLKDW Eco-duct Wrap Fsk 2x48x75

Product Description

The KNAUF INSULATION E24875FSKLKDW is a fiberglass duct wrap insulation with a foil-scrim-kraft (FSK) facing, designed for wrapping rectangular and round sheet metal ductwork in HVAC systems. This roll measures 2 inches thick by 48 inches wide by 75 feet long, providing substantial coverage for commercial and residential duct insulation projects. The FSK facing serves as a vapor retarder and radiant barrier, helping to reduce heat gain and loss across supply and return duct runs. HVAC installers and sheet metal contractors use this product to meet energy code requirements and maintain system efficiency.

Eco-duct Wrap is suited for insulating externally exposed ductwork in attics, crawlspaces, basements, and mechanical rooms. The 48-inch width accommodates a range of duct sizes without requiring multiple strips on larger trunk lines, reducing labor time on bigger installations. The FSK facing is stapled and taped at seams to create a continuous vapor retarder envelope around the duct. This product is appropriate for both new construction and retrofit HVAC duct insulation work where an FSK jacket is specified.

Key Features

• FSK facing provides an integrated vapor retarder for duct wrap applications
• 2-inch thickness delivers meaningful thermal resistance for supply and return ductwork
• 48-inch width reduces the number of seams needed on larger duct sections
• 75-foot roll length provides high linear coverage per roll, reducing material handling on larger jobs
• Fiberglass construction is non-combustible and resistant to moisture absorption

Compatibility

Designed as an OEM-style replacement and standard-fit duct insulation wrap for rectangular and round sheet metal ductwork in residential and light commercial HVAC systems where an FSK-faced fiberglass wrap is specified.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal contractors. Power down the air handling system before working on ductwork to prevent airflow interference during installation. Seams and stapled edges of the FSK facing should be sealed with UL 181-rated FSK tape to maintain the vapor retarder integrity. Consult local energy codes and ASHRAE standards for minimum insulation R-value requirements applicable to the installation location.