INC HVAC Duct Liner

Low cost acoustical treatment for HVAC applications

INC HVAC Duct Liner is easy to install in HVAC ductwork and plenums to reduce fan and other airborne noises. Bonded glass fibers specifically designed to be installed inside sheet metal ductwork provide acoustical and thermal benefits. The smooth, fire resistant airstream surfaces resist damage during installation and in service.

  • imageEnhances indoor comfort and more
  • Easy fabrication
  • Clean cutting
  • Comfortable handling
  • Lasting performance
  • Discreet appearance
  • Virtually damage-proof construction
  • Bacteria and fungi protection

 


Applications

  • HVAC ductwork
  • Plenums
  • Fan housings
  • Mixing boxes
  • Furnaces & AC equipment
  • Silencers & cross-talk vents

Product Features

  • Available in 1" and 2" thickness
  • Airstream surface resists fiber migration and damage
  • Resists fungi, mold, mildew, bacteria growth, mild dust, dirt and humidity
  • Clean to handle, cut and install
  • Installs with mounting pin assemblies, foam adhesive, or mechanical fasteners
  • 2" material has a thermal k factor of 0.25 at 75°F
  • Operating temperature range: -45° to 250°F
  • Maximum air velocity in ductwork of 4,000 fpm with intervals to 6,000 fpm
  • Available in 48" wide x 25" long rolls
  • Meets Flammability Standard NFPA 90A/90B

Not for use near open flame or sparks, in kitchen or fume ducting, or in applications that may come in contact with water.


Acoustical Performance

Standard Ductliner® Styles - Acoustical Data & Roll Size

Ductliner Style Roll Width Roll Length Sq. Ft. NRC by Octave Band Frequency (Hz) NRC
125 250 500 1000 2000 4000
1" Thick
DL100 48” 25’ 100 0.13 0.28 0.51 0.70 0.81 0.86 0.60
2” Thick
DL200 48” 25’ 100 0.14 0.41 0.80 0.92 1.01 0.94 0.80

 

Insertion Loss, dB per ft of Lined Duct

Ductliner  Style Roll Width Roll Length Sq. Ft. Frequency (Hz)
125 250 500 1000 2000 4000
1" Thick
DL100 48” 25’ 100 0.60 1.50 2.70 5.80 7.40 4.30
2" Thick
DL200 48” 25’ 100 0.80 2.90 4.90 7.20 7.40 4.30

Ductliner Insertion Loss based on a duct perimeter, ft/duct cross sectional area (ft2) = 8

download INC Acoustic Ductliner Specification and Installation Guide


Questions? Your INC Sales Engineer is ready to provide answers, planning help, application tips — whatever you need! Call us at 1-800-954-1998, send Email, or fill out a Request For Quotation — whatever is easiest for you.

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