Knauf Insulation Atmosphere Duct Liner is a flexible, mat-faced insulation bonded with ECOSE Technology. It is faced with a tightly bonded mat to give the airstream a smooth, tough surface, resisting damage during installation and operation. The encapsulant edge coating eliminates airstream flaring.

ECOSE Technology is a revolutionary binder chemistry that enhances the sustainability of our products. The “binder” is the bond that holds our glass mineral wool product together and gives the product its shape and brown color. ECOSE Technology is a plant-based, sustainable chemistry that replaces the phenol/formaldehyde (PF) binder traditionally used in glass mineral wool products. Products using ECOSE Technology are formaldehyde-free and have reduced global warming potential when compared to our products of the past.

Specifically designed as an interior insulation material for sheet metal ducts used in heating, ventilating and air conditioning. Provides an optimum combination of efficient sound absorption, low thermal conductivity and minimal airstream surface friction.

Knauf Insulation’s products used for thermal insulating purposes recover the energy that it took to make them in just hours or days, depending on the application. Once installed, the product continues to save energy and reduce carbon generation as long as it is in place.

Key Ingredients

• Recycled glass content, verified every six months by UL Environment
• Sand, one of the world’s most abundant resources
• Our green chemistry initiative ECOSE Technology, which is validated to be formaldehyde-free

Features

• Low thermal conductivity
• Fire-resistant, non-corrosive, durable and resilient
• Tough, tightly bonded mat facing
• Excellent sound absorption
• Energy conservation
• Better temperature control
• Lowers operating costs
• Greatly reduces noise from fans and mechanical equipment as well as cross-talk and air movement
• Withstands damage from normal handling and shop abuse
• If necessary, can be cleaned in accordance with NAIMA’s "Cleaning Fibrous Glass Insulated Air Duct Systems Recommended Practices"
• Low emitting for indoor air quality consideration
• Airstream surface mat facing is treated with an EPA-registered antimicrobial agent to aid in the prevention of fungal and bacterial growth

Applications

• Fabricate in compliance with the latest edition of "NAIMA's Fibrous Glass Duct Liner Standard."
• Liner shall be folded and compressed in the corners of rectangular duct sections or shall be cut and fit to assure lapped, compressed joints. Longitudinal joints in duct liner should not occur except at the corner of ducts. Longitudinal joints in liner shall be coated with adhesive. All damaged areas of the air stream surface shall be repaired with an adhesive which conforms to ASTM C916.
• Liner should be adhered to the duct with 90% minimum area coverage of an adhesive which conforms to ASTM C916.
• Mechanical fasteners should not compress the insulation more than 1⁄8" (3 mm), and shall be installed perpendicular to the duct surface. All fasteners should comply with the guidelines of NAIMA's "Fibrous Glass Duct Liner Standard and the Mechanical Fastener’s Standard MF-1-1975."
• Metal nosings shall be securely installed over transversely oriented liner edges facing the airstream at fan discharge, at access doors and at any interval of lined duct preceded by unlined duct. In addition, where velocities exceed 4,000 ft./min. (20.3 m/sec.), metal nosing shall be used on upstream edges of liner at every transverse joint.