What material is typically used for the construction of ductwork in commercial HVAC systems?

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Galvanized steel is the most commonly used material for ductwork in commercial HVAC systems due to its durable properties, which can withstand various environmental conditions and resist corrosion. Its strength allows for the efficient passage of air at high velocities, which is essential in commercial applications where larger volumes of air need to be moved. Additionally, galvanized steel can be easily fabricated into different shapes and sizes to fit specific installation requirements, making it highly versatile.

While plastic ducts are lightweight and can be used in certain residential applications, they are generally not suitable for high-pressure systems found in commercial settings. Wood, while used in some older or specialized systems, is not practical due to its weight and susceptibility to rot and insect damage. Copper is an excellent conductor and is used for piping in refrigeration systems, but it is not commonly utilized for ductwork due to its high cost and weight. Thus, galvanized steel is the go-to choice for commercial HVAC ductwork.

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