
Spiral Ductwork: Pros, Cons & Cost
If you’re looking for an efficient air duct for commercial space or residential usage, spiral air ducts can be a good pick. Spiral ductwork comes with improved air quality and aesthetics. HVAC Spiral Ductwork: Pros, Cons & Cost Spiral ductwork was first manufactured in the 50s, made of galvanized steel. However, aluminum or copper can