Certainteed 717070 Duct Liner 0.5 X 4 X 100 Ft Hvac

Product Description

The CERTAINTEED 717070 is a ToughGuard R duct liner engineered for installation inside sheet metal HVAC ductwork. It measures 0.5 inches thick, 4 feet wide, and 100 feet long, providing a substantial roll for both new construction and retrofit applications. The liner serves two primary functions: thermal insulation to reduce heat transfer through duct walls and acoustic dampening to limit airborne noise generated by the air-handling system. Licensed HVAC technicians and sheet metal contractors are the typical installers of this product.

This duct liner is intended for use inside rectangular or flat-oval sheet metal supply and return air ducts in residential and light commercial HVAC systems. The 100-foot roll length reduces the number of joints needed across a duct run, which supports cleaner installation in longer straight runs. The 0.5-inch thickness is suited for applications where duct interior clearance is limited but thermal and acoustic performance are still required.

Key Features

• 0.5-inch thickness suitable for space-constrained duct interiors
• 4-foot width covers standard duct panel dimensions with minimal trimming
• 100-foot roll length reduces field splices on long duct runs
• Designed for interior lining of sheet metal HVAC ductwork
• Provides both thermal insulation and acoustic attenuation in a single product

Compatibility

Designed as an OEM-style interior liner for rectangular and flat-oval sheet metal HVAC supply and return air ducts in residential and light commercial installations.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal workers following SMACNA duct liner installation standards and applicable local mechanical codes. Power down and lock out the air-handling unit before working inside or on ductwork. Liner must be secured with approved adhesive and mechanical fasteners per applicable code requirements to prevent delamination and airflow obstruction. Cut edges should be sealed to maintain surface integrity inside the airstream.

Technical Specifications

• Thickness: 0.5 inches
• Width: 4 feet
• Length: 100 feet
• Application: HVAC Sheet Metal Duct Interior Lining

Standard Information

• Brand: CERTAINTEED
• Manufacturer Part Number: 717070