The Flexible Foil Duct 150 mm × 6 m is a lightweight yet robust ducting solution for roof ventilation, exhaust fans and general air transfer. Supplied neatly compressed in a convenient bag, the six-metre length provides generous reach while its highly flexible construction makes routing through tight ceiling spaces straightforward. Manufactured from multi-layer aluminium foil bonded to a polyester core and reinforced with a high-tensile steel wire helix, the duct combines excellent crush resistance with long-term flexibility. The foil laminate reflects radiant heat and resists moisture, helping to maintain consistent airflow and inhibit condensation within the duct run. A smooth inner bore minimises pressure loss, ensuring efficient performance for powered extraction systems. Key features 150 mm internal diameter suits most domestic and light-commercial roof ventilators, bathroom fans, rangehoods and dryer outlets Supplied in a six-metre continuous length, compressed for easy transport and storage Triple-layer foil/polyester laminate with galvanised wire helix for strength and durability Operating temperature range –18 °C to 90 °C, suitable for warm air extraction Fire-retardant to AS 4254:2012 for added safety in ceiling cavities Quick to cut and install with standard duct tape or worm-drive clamps Technical specifications Parameter Value Internal diameter 150 mm Standard length (extended) 6 m Material Aluminium foil / polyester laminate Reinforcement Galvanised steel spring wire Bend radius (minimum) 1 × diameter Temperature rating –18 °C to 90 °C Air velocity (max) 30 m s⁻¹ Variations available Diameter Typical application 100 mm Toilet exhaust, small dryers 125 mm Ensuite fans, inline boost fans 150 mm General roof ventilation, rangehoods 200 mm Whole-house extract, commercial kitchens All diameters are supplied in the same 6 m bagged format, ensuring consistent quality and installation practice across different projects. Applications Roof ventilators and turbine vents Bathroom and laundry exhaust systems Kitchen rangehood discharge to eave or roof cowl Air transfer between rooms or plenums Temporary ducting for site dehumidifiers or heaters Installation guidance Uncoil the duct and trim to length with snips, allowing a little slack for fan vibration. Slide the cuff over the spigot, seal with aluminium tape, then secure with a stainless clamp. Support long horizontal runs every 1.5 m with nylon strap to prevent sagging and maintain a gentle fall towards the outlet for condensate drainage. The Flexible Foil Duct 150 mm × 6 m offers a practical, cost-effective route for high-volume roof ventilation and exhaust tasks. Its combination of strength, thermal stability and easy handling makes it a dependable choice for installers seeking reliable airflow with minimal fuss.
