Certainteed 90015280 Duct Wrap 3x48x50 Ft Fiberglass

Product Description

The CERTAINTEED 90015280 is a fiberglass duct wrap insulation blanket designed to insulate flexible and sheet-metal ductwork in residential and light commercial HVAC systems. It measures 3 inches thick by 48 inches wide and covers 50 linear feet per roll, providing a substantial run of thermal and acoustic insulation in a single piece. The facing is FSK (foil-scrim-kraft), which serves as both a vapor retarder and a finished surface. HVAC technicians and sheet metal installers apply this product to supply and return ducts running through unconditioned spaces such as attics, crawlspaces, and mechanical rooms.

This duct wrap is suited for new construction and retrofit applications in residential and light commercial settings. It is commonly installed on round, oval, and rectangular sheet-metal duct runs where continuous insulation coverage is required. The 48-inch width accommodates a wide range of duct circumferences, reducing the number of seams needed on larger trunk lines. The FSK facing is staple-and-tape compatible for securing to duct surfaces and taping longitudinal and butt joints per standard practice.

Key Features

• Fiberglass construction provides thermal and acoustic insulation for duct systems
• FSK (foil-scrim-kraft) facing acts as a vapor retarder and finished surface
• 3-inch thickness delivers meaningful R-value performance for unconditioned-space duct runs
• 48-inch width covers large-diameter trunk ducts with minimal seaming
• 50-linear-foot roll length reduces material handling and splicing on long duct runs
• Staple-and-tape compatible facing for standard field installation methods

Compatibility

Designed as an OEM-style insulation wrap for round, oval, and rectangular sheet-metal ductwork in residential and light commercial HVAC applications.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet-metal mechanics. Power down the air handling system before working on ductwork. Wrap the insulation snugly around the duct with the FSK facing outward, secure with staples along the longitudinal seam, and seal all seams and joints with approved foil tape per local mechanical code and SMACNA guidelines. Avoid compressing the insulation, as compression reduces effective R-value.

Technical Specifications

• Material: Fiberglass
• Facing: FSK (Foil-Scrim-Kraft)
• Thickness: 3 inches
• Width: 48 inches
• Length: 50 feet

Standard Information

• Brand: CERTAINTEED
• Manufacturer Part Number: 90015280