Duct Board Vs Sheet Metal Plenum

Sharp edges inside will cause material erosion.

Duct board vs sheet metal plenum.

Typically hvac duct systems are made of sheet metal but other rigid heatproof materials such as fiberglass or insulated plastic may be used. Duct board vs metal plenums supply is on perferable over the other. 26 ga plenum sleeve. 16 x 25 x 24 in.

Sheet metal products 8 x 20 x 20 in. Duct board is ok if the system design is correct and the duct and fittings are properly made and installed. The uncoated duct board classified as a medium roughness is controlled by higher surface friction. Proper aspect ratio for velocity and pressure drop is more important than sheet metal.

If i am going to have a supply plenum run for approx. Fiberglass lining is used to insulate air ducts from heat loss or to avoid condensation in cases where the supply air is very cold or there is a high ambient humidity in the plenum. Duct board insulation and wrap ducting and sheet metal ductless mini split flex furnaces package units r22 r410a thermostats shop all hvac. Those tiny microscopic glass strands can break off and enter the airflow.

26 ga duct plenum. Cut this duct board to size and use it to build your own hvac fittings or trunk duct and then assemble it with fiberglass weave and mastic or duct board approved duct tape for a convenient solution to your ducting problems. Duct board r 6 features fiberglass construction with an fsk backing for sturdiness over time. It is not rodent proof.

There s no filter to catch these fibers on the supply side of your hvac system. Some sheet metal air ducts are lined with an external or internal fiberglass duct liner. The faced coated duct board behaves only slightly rougher than sheet metal but does not have joint inter ruptions so we estimated it as overall slightly 5 rougher. Sheet metal friction is based on surface and joint configurations.

Consequently these glass strands can be carried with the airflow into your living space. The master flow 48 in. To see availability for this product personlog in or get online access.