Atmosphere Duct Liner Roll Ultimate

Knauf Insulation Atmosphere™ Duct Liner Roll is 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
ECOSE Technology is 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 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.

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

Sustainability
Carbon negative: Knauf Insulation products used for thermal insulating purposes recover the energy that it took to make them in just hours or a few days, depending on the application. Once installed, the product continues to save energy and reduce carbon generation as long as it is in place
Glass mineral wool insulation with ECOSE Technology contains three primary ingredients:
Sand, one of the world’s most abundant and renewable resources
A minimum of 50% recycled content and UL Environment verification every 6 months
ECOSE Technology which reduces binder embodied energy by up to 70%

Product Data
Specification Compliance

ASTM C 1071; Type I
ASTM G 21
ASTM G 22
NFPA 90A and 90B
ASHRAE 62

Indoor Air Quality
UL Classified (UL 723)
UL Environment validated to be formaldehyde-free
UL 2824 certified to be resistant to microbial growth
Does not contain polybrominated diphenyl ethers (PBDE) such as Penta-BDE, Octa-BDE, or Deca-BDE
Tested and certified to meet all the requirements of EUCEB

Technical Data
Surface Burning Characteristics
Does not exceed 25 Flame Spread, 50 Smoke Developed when tested in accordance with UL 723, ASTM E 84, and NFPA 255
Temperature Range (ASTM C 411)
Up to 121°C (250°F)
Air Velocity (ASTM C 1071)
Maximum 6000 fpm (1829 mpm).
Tested to 15,000 fpm (4572 mpm).
Corrosiveness (ASTM C 665)
Does not accelerate corrosion on steel, copper or aluminum.
Corrosion (ASTM C 1617)

The corrosion rate in mils/yr will not exceed that of the 1 ppm chloride solution.
Water Vapor Sorption (ASTM C 1104)
Less than 3% by weight.
Microbial Growth
Airstream surface mat facing is treated with an EPA-registered anti-microbial agent to aid in the prevention of fungal and bacterial growth.
ASTM C 1338 – does not promote or support the growth of mold, fungi or bacteria
UL 2824 certified to be resistant to microbial growth

Application & Specification Guidelines
Storage
Inside storage is recommended.

Fabrication and Application
Fabricate in compliance with the latest edition of NAIMA’s Fibrous Glass Duct Liner Standard.
The 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 that conforms to ASTM C 916.
The liner should have adhered to the duct with 90% minimum area coverage of an adhesive which conforms to ASTM C 916.
Mechanical fasteners should not compress the insulation more than ⅛” (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 1219 mpm (4000 fpm), metal nosing small be used on upstream edges of the liner at every transverse joint.

Limitations
Knauf Duct Liner Duct Liner Roll with ECOSE Technology should not be used in systems operating at velocities exceeding 1829 mpm (6000 fpm) or at temperatures above 121°C (250°F).

Maintained Duct Systems are Key
The best way to ensure that an HVAC system, whether bare metal or internally insulated, will continue to provide efficient, quiet air delivery, occupant comfort, and cost-effectiveness is by following a regular system operation and maintenance schedule. This, along with a high-efficiency filtration system, assures protection of both HVAC system components and building occupants.  Maintenance procedures include inspection, detection, and remediation of probable sources of airborne contaminants and moisture.

Glass mineral wool insulation will not sustain mold growth.  However, mold can grow on almost any material when it becomes wet and contaminated.  Carefully inspect any insulation that has been exposed to water. If it shows any sign of mold, it must be discarded. If the material is wet but shows no evidence of mold, it should be dried rapidly and thoroughly.  If it shows signs of facing degradation from wetting, it should be replaced. Air handling insulation used in the air stream must be discarded if exposed to water.

Notes
The chemical and physical properties of Knauf Insulation Atmosphere™ Duct Liner with ECOSE® Technology represent typical average values determined in accordance with accepted test methods. The data is subject to normal manufacturing and testing variations.  The data is supplied as a technical service and is subject to change without notice. References to numerical flame spread ratings are not intended to reflect hazards presented by these or any other materials under actual fire conditions.  When condensation is permitted to occur between nested Atmosphere™ Duct Liner and galvanized steel panels, discoloration of the metal may occur.

• Tough, tightly bonded mat facing.
• Excellent sound absorption.
• Energy conservation.
• Better temperature control.