Duct liner is used in the interior of sheet metal ducts and comes as either flexible blankets or rigid boards of insulation. These liners come in thicknesses of ½ to 2-inches and are made of the ...

If duct cleaning is necessary, it is important that the cleaning professionals be familiar with both the North American Insulation Manufacturers Association (NAIMA) and National Air Duct Cleaning ...

This insulation is wrapped around the exterior of the inner duct, which is then inserted into the outer duct. This system offers both thermal and acoustical control, however, it is typically heavier ...

Pro-R Double Wall is a top market choice for specialty applications like wastewater treatment. Pro-R Double Wall is a pre-insulated phenolic duct solution available nationwide. The Patented Pro-R ...

Energy Star estimates that 20% to 30% of the air that moves through residential ductwork is lost through “leaks, holes, and poorly connected ducts,” accounting for a major loss of energy.

Q. We had a chimney cleaning service inspect our chimney and they suggested that we install an insulated flexible aluminum flue liner in our chimney connected directly to our gas water heater vent.