For Outdoor Applications, KD Manufacturing Co. recommends ThermaDuct. Thermaduct combines the best of air distribution technology with choice outdoor barrier to create a duct that offers the highest R-value and lowest air leakage rates in the industry. Unsurpassed performance was the goal in creating Thermaduct; not to deliver every cubic foot of air as it is fed, but to keep fibrous or volatile organic chemical latent liners away from air distribution.

Indoors, the air passes the smooth aluminum of Kingspan KoolDuct. The outer layers include a factory applied FSK aluminum with a 5 ply, zero permeability cladding sealed on both ends with aluminum channels. Once installed, all seams are comletely for uncompromising integrity.

Outdoor Quality  Air distribution is a part of a construction project that is often ignored, yet accounts for up to 30% of the HVAC energy utilized. Building construction has employed thermal transmission reduction initiatives though the emerging energy codes, but most ducting systems in the US have not even achieved the performance of the average windows being installed today. When you combine the thermal performance with air leakage rate experience...your existing duct is letting you down.

More imminent in most duct systems is migration of water into the air passage system. The proof is on the roofs of buildings that employ outdoor ductwork. As duct systems leak, they inflate and deflate the outer protective layer that is intended to provide water integrity. Over time, the performance of the moisture barrier degrades to a point where moisture is allowed in. Moisture reduces the performance of the insulation and augments microbial growth either on, or in, the duct.

Thermaduct offerings of industry solutions like no other that meet or exceed the ASHRAE and ICC Energy Codes not only today...but 10 years from now. Choose one of the following or request custom values from R-8 to R-20

Kingspan KoolDuct offers unparalleled performance in indoor applications. Not only will you save your customers money with far less air leakage with this pre-insulated ductwork, but the other advantages will save you time, energy and space.

Weight Advantages  With KoolDuct weighing up to 85% less than insulated sheet metal, there are a lot of factors that lead to a savings of time and money. Fewer supports, lower handling cost, reduced transport costs, and easier installation. KoolDuct is also pre-insulated, so there’s no need to wrap ductwork. One worker can do much more with less weight to work with.

Energy Savings  The energy savings of Kingspan KoolDuct are great for the environment and building owners. With high R-Values, R6 and R8.1, The Kingpsan KoolDuct System is an excellent choice for air distribution. The fabrication is nearly air tight, making the air leakage a fraction of what conventional sheet metal ductwork experiences. Both of these factors make the operational costs of a KoolDuct installed HVAC system much more energy efficient.


Space Advantages  Insulated sheet metal requires additional space compared to bare sheet metal. Kingspan KoolDuct can be installed flush to ceilings, saving you an extra 6-8” while still maintaining a high R-Value. This space can be extremely valuable in remodeling projects.