Knauf Eclipse Air Duct Board

• Submittal
• MSDS
• Guide Specifications

Description

Knauf Eclipse^TM Air Duct Board is a resin-bonded fiber glass formed into rigid, rectangular boards faced on one side with a fire-resistant foil-scrim-kraft (FSK) vapor retarder and a lightweight black fiber glass mat on the airstream surface. Available in EI-475 or EI-800. Both types are available with a butt edge or a factory-molded shiplap edge. The airstream surface of Knauf Eclipse Air Duct Board is treated with an EPA registered, antimicrobial agent that prevents growth of mold, fungus or bacteria in accordance with ASTM C 1071, G21 and G22.

Application

Features

• Low thermal conductivity of 0.23 at 75°F (24°C) mean temperature.
• Low installed cost, insulated duct system.
• Excellent acoustical characteristics.
• Non-woven all-glass mat facing on the airstream surface.
• Assured insulation thickness, shiplap joints, and FSK vapor retarder.
• If necessary, can be cleaned in accordance with NAIMA's “Cleaning Fibrous Glass Insulated Air Duct Systems Recommended Practices.”
• Knauf Eclipse Air Duct Board systems meet the fire and smoke safety regulations of most federal, state, and local building codes.
• Fabrication in shop or on jobsite.
• Dark black glass mat airstream surface.

Benefits

• Fabrication in shop environment lowers field installation time.
• One craft required to fabricate and install system.
• Minimum capital investment for fabrication equipment.
• Portability allows for assembly or fabrication at job site.
• Black mat facing ensures a smoother airstream surface for a cleaner cut and added durability.
• Lower installation cost than with duct wrap and duct liner with sheet metal.
• Quiet, efficient air delivery.
• Reduces noise generated by air turbulence and mechanical equipment.
• Eliminates “booming” and “cracking” sounds caused by sheet metal duct contraction and expansion.
• Condensation control.
• Strong thermal performance.
• Code compliance.

Specification Compliance

In U.S.:

• ASTM C 1136; Type II (FSK facing)
• ASTM D 5116
• ASTM G 21, G 22
• GREENGUARD^TM Certification
• BOCA
• CABO
• California Title 24
• Corps of Engineers Guide Specifications
• ICBO
• International Mechanical Code
• NFPA 90A and 90B
• SBCCI
• UL 181; Class 1

In Canada:

• CAN/ULC S102-M88
• CAN/CGSB 51-GP-52M (facing)
• CAN/CGSB 51.10-92
• ULC Issue 869C; Class 1

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.

Flexural Rigidity

• Available in two stiffness values: EI-475 and EI-800.
• Flexural rigidity (EI) is the product of Young's modulus of elasticity (E) and moment of inertia (I) as determined in accordance with NAIMA AHS-100-74.

Service Temperature (ASTM C 411)

• Up to 250°F (121°C).

Air Velocity (UL 181)

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

Internal Static Pressure (UL 181)

• Maximum ±2" water (498 pascals [Pa]).

Water Vapor Permeance (ASTM E 96)

• Less than 0.02 perms.

Water Vapor Sorption (ASTM C 1104)

• Less than 5% by weight.

Microbial Growth (ASTM G 21, G 22, UL 181)

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

Application and Specification Guidelines

Storage

• Protect stored duct board from water damage, construction damage, and other abuse.
• If stored outside, proper protection from weather conditions should be provided.

Application

• Duct shall be fabricated and installed in strict accordance with NAIMA's “Fibrous Glass Duct Construction Standard,” “Residential Standard,” “1¹/2" Fabrication Manual,” or Knauf Insulation “Air Duct Fabrication Manual,” and in accordance with the conditions of UL 181 listing. Duct systems shall have all transverse joints, longitudinal seams, and duct wall penetrations sealed using 3" (76 mm) wide glass fabric and mastic, 2" (51 mm) minimum width heat-sealable tape, or 2" (51 mm) minimum width pressure-sensitive tape with acrylic adhesive. Rubber based adhesives are not approved.
• Only UL 181-A listed and labeled products shall be used for closure systems. A listing of approved closure products is available from your local Knauf sales representative.
  
  PRESSURE-SENSITIVE TAPES: Only those tapes listed under and imprinted with designation UL 181 A-P and registered with UL.
  HEAT-SEALABLE TAPES: Only those tapes listed under and imprinted with designation UL 181 A-H and registered with UL.
  MASTICS: Mastic systems listed and registered with UL and carrying the designation UL 181 A-M used in conjunction with a 3" (76 mm) wide glass fabric.

Procedures

Closure

Reinforcements

Notes

*Other lengths on made-to-order basis. **Palletized packaging on request.