Knauf Insulation GmbH
One Knauf Drive
Shelbyville, IN 46176
Toll Free: (800) 825-4434
Tel: (317) 398-4434
Fax: (317) 398-3675
E-mail: info.us@knaufinsulation.com
Web site: www.knaufinsulation.us

Knauf Rigid Plenum Liner

Description
Knauf Rigid Plenum Liner is a heavy-density fiber glass board insulation made from inorganic glass fibers bonded by a thermosetting resin. Its base board is amber with a black top layer of fiber glass. A black polymer overspray is applied to the airstream side for a smooth, tough finish.

Application
Knauf Rigid Plenum Liner is specifically designed as an interior insulation material for heating, ventilating, and air conditioning plenums and sheet metal ducts. It offers an optimum combination of efficient sound absorption, low thermal conductivity, and minimal air surface friction.

• Low thermal conductivity.
• Fire-resistant, non-corrosive.
• Tough and resilient.

• Energy conservation.
• Better temperature control.
• Lower operating costs.
• Greatly reduces noise from fans and mechanical equipment, as well as noise from 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

• ASTM C 1071; Type II*
• ASTM D 5116
• ASTM G 21, G 22
• GREENGUARD Environmental Institute^™
• California Title 24
• NFPA 90A and 90B
• State of Alaska IAQ Specifications
• State of Washington IAQ Specifications
  *Replaces HH-I-545B; Type II

• CAN/ULC S102-M88
• CAN/CGSB 51.11-92

Technical Data

• 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.

• Up to 250°F (121°C).

• Maximum 5000 fpm (1524 mpm).
• Tested to 12,500 fpm (3810 mpm).

• Less than 3% by weight.

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

Application and Specification Guidelines

• Inside storage is recommended. Protect stored Rigid Plenum Liner from water damage or abuse. If stored outside, stack cartons on pallets and cover adequately to prevent moisture infiltration.

• Install Knauf Rigid Plenum Liner in metal duct and plenums operating at 250°F (121°C) service temperature or less, and velocities of 5,000 fpm (1524 mpm) or less.
• Liner shall be applied with the treated surface facing toward the air stream.
• Mechanical fasteners shall not compress the liner 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.
• Adhesives that conform to ASTM C 916 shall be applied to the sheet metal with at least 90% coverage.
• All internal duct areas designated to be lined shall be completely covered with liner. Transverse joints shall be firmly butted together with no gaps, and coated with adhesive. All exposed leading edges shall be coated with adhesive.
• Mechanical fasteners shall be used to secure the rigid plenum liner and spaced in accordance with NAIMA's Fibrous Glass Duct Liner Standard.
• Corner joints shall be overlapped so no gaps are present. Top pieces shall be supported by side pieces.
• All longitudinal joints shall be coated with adhesive conforming to ASTM C 916 when air stream velocities exceed 2500 fpm (762 mpm).
• All damaged areas to air stream surface shall be repaired with an adhesive that conforms to ASTM C 916.

Notes
The chemical and physical properties of Knauf Rigid Plenum Liner represent typical average values determined in accordance with accepted test methods. The data is subject to normal manufacturing 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.

Check with your Knauf regional office to assure information is current.