Flexible ducts are essential for navigating tight, complex spaces in modern HVAC layouts. Constructed with a flexible wire helix core, fiberglass insulation, and a durable vapor barrier, they provide excellent versatility and noise reduction at a low installation cost.
However, maximizing performance requires precision. To prevent severe static pressure drops and airflow friction, flex ducts must be fully extended, properly supported with wide hangers every 4 feet, and sealed tightly at junctions using mechanical drawbands and mastic.
To choose the perfect R-value and diameter for your system, explore the Astberg Ventilation Flexible Duct Guide and the Complete HVAC Ventilation Guide by Astberg.