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.