Description

Knauf Duct Liner E•M is a flexible, mat-faced insulation made from inorganic glass fibers bonded

by a thermosetting resin with an encapsulant edge coating. 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.

Application

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.

Features and Benefits

• 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."

Specification Compliance In U.S.:

• ASTM C 1071; Type I

• ASTM D 5116

• ASTM G 21, G 22

• GREENGUARD Environmental Institute™

• NFPA 90A and 90B

• State of Alaska IAQ Specifications

• State of Washington IAQ Specifications

In Canada:

• CAN/ULC S102-M88

• CAN/CGSB-51.11-92

Technical Data

Surface Burning Characteristics

• UL/ULC listed.

• Does not exceed 25 Flame Spread, 50 Smoke Developed when tested in accordance

with ASTM E 84, CAN/ULC S102-M88, NFPA 255 and UL 723.

Temperature Range (ASTM C 411)

• Up to 250°F (121°C).

Air Velocity (ASTM C 1071)

• Maximum 6000 fpm (1829 mpm).

• Tested to 15,000 fpm (4572 mpm).

Water Vapor Sorption (ASTM C 1104)

• Less than 3% by weight.

Microbial Growth (ASTM C 1338, G 21, G 22)

• Airstream surface mat facing is treated with an EPA-registered anti-microbial agent to aid in the prevention of fungal and bacterial growth.

• Does not promote or support the growth of mold, fungi or bacteria.

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.

• 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 C 916.

• Liner should be 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 4000 fpm (1219 mpm), metal nosing small be used on upstream edges of liner at every transverse joint (See illustration, right.)

Limitations

• Knauf Duct Liner E•M should not be used in systems operating at velocities exceeding 6000 fpm (1829 mpm) or at temperatures above 250°F (121°C).