Galvanized tempered steel is a popular choice for ductwork due to its customizability and ability to minimize energy losses. Its smooth surface helps improve airflow and resist mold and mildew growth. Fiberglass panels are used less often, but they can provide good acoustic properties. The ducts are made of flat sheets of fiberglass folded into the required shapes, with no metal except for the hangers.
Rigid sheet metal is the most common type of ducting, and it offers many benefits. A sheet metal company in Ruston, LA can create custom sheet metal ducts to fit any space, including square, round, and decorative shapes. Metal ducts are more expensive than other materials, but they are worth it due to their shape retention and low air resistance. This can help reduce energy bills in George, Utah, as the furnace and air conditioning unit won't have to work as hard to supply air to the entire building.
For example, if you have a 12 x 12 duct that is lined with 1 acoustic coating and should be the net free area of the duct dimension, then the sheet metal duct network will need to be 14 x 14. Sheet metal is essential for effective and efficient ducts that can prevent leaks by moving air through the HVAC system. Unlike sheet metal ducts with an insulating fiberglass layer, fiberglass air ducts are sealed to prevent fiberglass particles from entering the airflow.