Why Use Fiber Duct Versus Sheet Metal

Made from sheet metal ducts with internal and external fiberglass lining.

Why use fiber duct versus sheet metal.

The idea of the porous insulation on the interior just doesn t seem like a good idea. Flex ducts are better for existing trunk and branch heating and cooling systems. Some sheet metal air ducts are lined with an external or internal fiberglass duct liner. N in fibergl removal before and after page 3 duct flow wikiwand fibergl conduit hangers champion bridge fibergl conduit hangers champion bridge n in fibergl removal before and after page 3 harold r whelden heating refrigeration.

These three curves are shown in figure 1. Sheet metal friction is based on surface and joint. As for metal v flex for taps thats your call metal is better but flex is fine. One of the major advantages of sheet metal ductwork is its staying power.

Sealing duct seams is messy work so wear old clothes. Duct joints should always be secured with 8 sheet metal screws before seams are sealed with mastic. In comparison to metal duct flex duct is easier and faster to install. This is because they re more versatile and flexible.

The most common materials used for sheet metal ducts are aluminum and galvanized. The blue curve is the sheet metal curve the green curve is that of unfaced or finished duct board and the yellow is our best estimate of the desi gn values for the laminate faced new generation duct board product. Made from compressed fiberglass strands which are bonded with resin and covered with a foil laminate for moisture protection. Metal metal do it once and do it right.

Mastic is a gooey non hardening material with a consistency between mayonnaise and smooth peanut butter. As a rigid material your sheet metal ductwork needs to have adequate space. Because of what it s made out of it tends to last a long time especially when it is properly cared for. Metal ducts are more rigid due to the nature of steel making them ideal to build an entire hvac system.

We also use third party cookies that help us. Use to design the duct systems. We use all metal duct with wrap on the outside only. I have never liked duct board or ducts lined with fiberglass.

Fiber glass lined ducts. Sheet metal fibergl ductwork fabrication installationbeach. We see to much duct board falling apart at the joins with nasty mold growing in it.