HVAC Insulation
HVAC systems are used in both commercial and residential buildings — from offices to factories, hotels to homes. They’re a big factor when it comes to the overall comfort of your home or building. Adding HVAC insulation can help improve that comfort and even lead to lower utility costs.
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Key Benefits
Thermal Performance
Maintains temperature for improved process control
Reduced Utility Costs
Reduces energy loss which can lower utility costs
Sound Control
Helps absorb operational noises

The Importance of HVAC Insulation

When you think of metal ductwork, you may think about those noisy booms and cracks that come with it. The acoustical properties of HVAC ducting insulation can help absorb these operational noises, minimizing sound transfer.

Because HVAC systems directly control your heating and air conditioning, proper insulation can pay off. By adding thermal HVAC insulation, you’ll see improved temperature control which can reduce energy loss. This will help your HVAC system work more efficiently and you’ll even see a reduction in your utility costs.

Choosing the Right HVAC Insulation

There are different types of HVAC duct insulation solutions. Determining what to use is dependent on the project needs. Here are the common types of HVAC insulation and their primary benefits:

  • Duct Liner: Used to line sheet metal ducts when both thermal and acoustical performance is desired.
  • Duct Board: Fabricated into the duct itself, duct board offers both sound and thermal control.
  • Duct Wrap: Thermal insulation installed on the outside of sheet metal ductwork helps to increase the efficiency of the system and with FSK facing can aid in the condensation control design of a system.

Browse Our HVAC Insulation Products
Our line of fiberglass HVAC duct insulation can help you achieve desired results for increased acoustical and thermal performance, as well as increased comfort in the building.
Atmosphere™ Air Duct Board
Validated formaldehyde-free board used to fabricate the complete air duct, providing excellent acoustic insulation.
Applications
Thickness
1"; 1.5"; 2"
R-Value
4.3; 6.5; 8.7
Stiffness
EI-475; EI-800
Eclipse® Air Duct Board
Used to fabricated air duct systems, this board provides excellent acoustic characteristics to help minimize noise.
Applications
Thickness
1"; 1.5"; 2"
R-Value
4.3; 6.5; 8.7
Stiffness
EI-475; EI-800
Atmosphere™ Duct Liner
Designed to offer excellent sound absorption, temperature control and energy conservation in sheet metal ducts.
Applications
Thickness
0.5"; 1"; 1.5"; 2"
Length
50' - 200'
Density
1.5 PCF; 2.0 PCF
Atmosphere™ Rigid Plenum Liner
Duct liner board delivers efficient sound absorption, low thermal conductivity and minimal air surface friction.
Applications
Thickness
1"; 1.5"; 2"
Length
48" - 120"
Width
24"; 48"
Atmosphere™ Duct Wrap
Designed to wrap the duct, providing excellent thermal properties, energy conservation and condensation control.
Applications
Thickness
1.5" - 3"
Length
50' - 100'
Density
0.75 PCF - 1.5 PCF
Black Diffuser Board
Delivers efficient sound absorption, low thermal conductivity and minimal air surface friction in HVAC systems.
Applications
Length
60" - 120"
SAC
0.13 - 1.07
Density
3.0 PCF; 4.0 PCF
Equipment Liner M
OEM liners for HVAC equipment designed to resist damage and provide trusted thermal and acoustical performance.
Applications
Thickness
0.5" - 2"
Width
16" - 96"
Density
1.5 PCF; 2.0 PCF
FDM Blanket Insulation
Insulation engineered as the foundational thermal component of the flexible duct within HVAC systems.
Applications
Thickness
2"; 2 5/8"
R-Value
R-6; R-8
Length
125"; 150"
KN Series Blanket
Highly versatile and available in densities from 0.75 - 2.5 PCF to provide thermal insulation up to 650ºF for appliances, transportation and more.
Thickness
1" - 6"
Length
30' - 125'
Width
36" - 96"
Earthwool® Pipe & Tank Insulation
Designed for large-diameter pipes and tanks, it's noted for its sustainability, thermal performance up to 850ºF and high quality.
Thickness
1" - 3"
Length
16' - 48'
Width
36"
KwikFlex® Pipe & Tank Insulation
Available in 3 facings, it provides excellent acoustical and thermal insulation up to 850ºF for tanks, vessels and pipes.
Thickness
1" - 3"
Width
48"
Length
18' - 52'
Earthwool® Insulation Board
Versatile board deliver fast and easy install, alongside excellent thermal and acoustical performance.
Applications
Thickness
1" - 4"
SAC
0.05 - 1.18
Density
1.6 PCF - 6.0 PCF
How to Choose the Right Insulation
Fiberglass Insulation
The smart choice to make spaces more comfortable and energy efficient.
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R-Value
The ability to resist heat flow — insulation's thermal resistance.
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Thermal Properties
Ability to enhance a thermal enclosure for comfort and efficiency.
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Insulating For Sound
Sound absorption characteristics, helping reduce noise transmission.
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