How about phenolic duct insulation board?

Phenolic air duct panel
The thermal conductivity of the phenolic composite air duct is 0.022~0.025W, while the thermal conductivity of the galvanized steel plate air duct and the glass fiber reinforced plastic air duct is much larger. In addition, the unique connection method of phenolic composite duct ensures excellent air tightness of the ventilation system, which is approximately 8 times that of galvanized steel duct. Some data show that when conveying the same heat (cold) amount, the heat loss of galvanized steel duct is 15%, that of glass fiber reinforced plastic duct is 8%, and that of phenolic foam insulation material duct is less than 2%.
73ef3b7b34c3d68240e2a4133c1fd8ce_
The weight of phenolic composite air duct is light, about 1.4 kg/㎡, while the unit weights of galvanized steel sheet air duct (0.8mm thick) and glass fiber reinforced plastic air duct (3mm thick) are 7.08 kg/㎡ and 15-20 kg/㎡, respectively. Therefore, using phenolic air duct panels can greatly reduce the load on the building, and is extremely beneficial for the installation of air ducts. During installation, only one bracket is required every 4 meters to provide sufficient support. This greatly reduces the requirements for the bearing capacity of supports, hangers, etc., making transportation and installation very convenient.So phenolic foam duct board is a good choice for you.


Post time: Mar-22-2023