Frequently Asked Questions


What is Kingspan KoolDuct?

Kingspan KoolDuct is an advanced pre-insulated phenolic duct system. KoolDuct uses closed cell phenolic foam to deliver high R-values and Low Air Leakage in a thin, yet robust panel.


Is it spelled CoolDuct or KoolDuct?

While often searched online as Cool Duct to those new to the product, KoolDuct is spelled with a K.


Why should I use KoolDuct over traditional Sheet Metal Ductwork?

In addition to high R-values, Kingspan Kool Duct can reduce air-leakage rates to a fraction of that of traditional sheet metal duct, providing exceptional energy savings.


What insulation R value can Kingspan KoolDuct reach?

Koolduct is available in thicknesses that supply R-6 and R-8.1 insulation value.


How are Kool Duct installations different than traditional sheet metal?

KoolDuct has a fiber free insulation core for increased indoor air quality. Air passes through a smooth aluminum interior, free from fibers that are found in duct liner. Ductwork can also be installed flush to ceiling, saving your customer much needed space.


Where can I buy Kingspan Kool Duct?

Kingspan has a network of distributors in the United States. We represent 13 states in the midwest. For more information call 855-KOOLDUC.


How do I locate a qualified installer of KoolDuct?

In the Midwest we have trained fabricators and installers in key areas across the Midwest. If you do not see one in your area please contact us to get connected to an installer in your area.


How do I become a KoolDuct fabricator?

Contact Delta Air Systems for more information on becoming a fabricator in your area. For more information on becoming a fabricator, contact [email protected].


Will KoolDuct meet SMACNA construction standards?

Yes. SMACNA has recently published the Phenolic Duct Construction Standards which includes ductwork such as that found in Kingspan KoolDuct. These duct construction and installation standards will be internationally recognized by the leading authority in HVAC construction.


Is KoolDuct compliant with ANSI/ASHRAE/IESNA 90.1:2007, IECC 2003, 2006, 2009 & 2012, IMC 2009?

Yes. KoolDuct is compliant with ANSI/ASHRAE/IESNA 90.1:2007, IECC 2003, 2006, 2009 & 2012, IMC 2009.


Will KoolDuct produce smoke?

Kingspan KoolDuct is a certified UL 181 product for its excellent fire and smoke rating and easily meets the requirements of ASTM E84 and UL723 25/50 flame and smoke spread ratings.

Can Kingspan KoolDuct be painted?

Yes, Kingspan KoolDuct is paintable.


What type of foam is Kool Duct using?

Kingspan KoolDuct is certified to be greater than 90% closed cell content. This means a low potential for water intrusion, exceptional mold resistance and the highest R-value per inch of thickness.


What is the sound attenuation of KoolDuct?

Kingspan KoolDuct is a very quiet way to convey air. While it doesn’t present any “open cell fibers” to absorb noise…it does not have any inherent break out noise that is often confused with “the HVAC equipment operation”. Kingspan KoolDuct is a thick resin that does not have the propensity to resonate or transmit sounds and as such is a quiet high performance air distribution system.


Can KoolDuct be used in industrial, residential and commercial applications?

KoolDuct can be used in all applications where traditional sheet metal ductwork is used. KoolDuct is a no fiber insulation pro duct offering excellent IAQ and energy saving benefits to the residential markets. This medium pressure ducting system is excellent for commercial applications and ideal for industrial applications because of its closed cell, smooth aluminum surface.


Who do I contact to have KoolDuct specified for my project?

Please email us for a specifying engineer in your area that can assist you on your next project. For a copy of the guide specifications, please email [email protected].


Is KoolDuct an alternative for, fiberglass board, fiberglass insulation, galvanized metal, armaflex or armacell?



How do I get trained to install Kingspan KoolDuct?

You can be trained to install Kingspan KoolDuct from a distributor, a local fabricator or the Sheet Metal Workers ITI Training centers. For more information call 855-KOOLDUC.


What static pressures can Kingspan KoolDuct handle?

KoolDuct is designed for Positive 4 in. w.g. and Negative 3 in. w.g.


Is KoolDuct considered phenolic board?

Yes…with its proprietary closed cell, non-ozone depleting blowing agent, Kingspan KoolDuct is a premium phenolic board that meets the requirements of a Class 1 UL181 listed ducting system.


Can KoolDuct be used in outdoor exposed environments?

Because Kingspan KoolDuct is a closed cell insulated foam…it can be used in outdoor applications with special cladding. Contact [email protected] for more application assistance for outdoor ducting applications.

Need More Information?

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