Exhaust Ducting

Buildmat supplies exhaust ducting and ventilation accessories to renovators, builders and homeowners across Australia, with products for connecting, extending and finishing residential ventilation systems. Our range includes flexible insulated ducting, connectors, adaptors and exterior outlets, along with selected ventilation modules and heat transfer kits.

Exhaust Ducting & Accessories by Type

Choose the components that suit your ventilation layout and installation requirements.

• Insulated flexible ducting: Connect compatible exhaust fans and ventilation systems using flexible ducting that can be routed through suitable ceiling spaces. Explore Ventair insulated ducting in the available sizes.

• Duct adaptors: Connect compatible duct components of different diameters, including Ventair's 200mm to 150mm adaptor.

• Y-duct connectors: Join compatible duct branches within a ventilation system. Check the fan's capacity and system design before combining multiple ducts.

• Roof cowls and exterior vents: Direct extracted air outside through a suitable roof or wall outlet. Our range includes Ventair roof cowl exhaust kits and stainless steel surface-mounted vents.

• Heat transfer kits: Move warm air between suitable areas of the home using a purpose-designed heat transfer system.

• Ventilation modules: Explore selected IXL Tastic Luminate vent modules and compatible ventilation components.

For the fans themselves, browse our ceiling exhaust fans, including ducted and inline options.

What We'd Check Before You Buy

The most important part of choosing exhaust ducting is making sure every component works with the fan and installation layout.

• Duct diameter: Check the outlet size of your exhaust fan before ordering. Common duct diameters include 100mm, 125mm, 150mm and 200mm, but the correct size depends on the model.

• Duct length: Measure the distance from the fan to the external outlet, allowing for the actual route through the ceiling or wall. Keep duct runs as short and direct as practical.

• Bends and connectors: Tight bends, unnecessary joins and changes in duct diameter can restrict airflow. Check the manufacturer's recommendations for maximum duct length and permitted configurations.

• Insulation: Insulated ducting can help manage condensation where warm, humid air travels through cooler spaces. Check whether insulation is required for your installation.

• External discharge: Confirm where the air will exit the building and whether you need a roof cowl or wall vent. Bathroom and laundry exhaust systems generally need to discharge outdoors in accordance with applicable building requirements.

• Compatibility: Check whether your exhaust fan already includes ducting, connectors or an external vent. Some products are sold as complete kits, while others require separate accessories.

Exhaust Ducting Prices at Buildmat

Our exhaust ducting collection includes individual connectors and outlets through to complete ventilation kits.

Ventair Y-duct connectors and stainless steel surface-mounted vents are priced at around $38, while duct adaptors are approximately $49.

Insulated flexible ducting starts from around $138, with roof cowl exhaust kits priced at approximately $282. Heat transfer kits start from around $480, depending on the configuration.

Complete Your Ventilation Setup

Make sure you've got the right fan and accessories before installation.

• Ceiling exhaust fans: Explore ducted, inline and ceiling-mounted exhaust fans for bathrooms, laundries and toilets.

• 3 in 1 bathroom heater, fan and light units: Choose combination units that provide heating, lighting and ventilation in one fitting.

• Bathroom heating and ventilation: Browse the wider range of bathroom exhaust fans, heaters and ventilation products.

If you're replacing an existing fan, check the ceiling cut-out, duct connection and available ceiling cavity space before choosing a new model.

Shop Exhaust Ducting by Brand

Our exhaust ducting collection includes ventilation products from Ventair and IXL.

Ventair: Explore insulated flexible ducting, duct adaptors, Y-connectors, roof cowls, surface-mounted vents and heat transfer kits. Ventair also offers compatible ducted and inline exhaust fans for different room sizes and ventilation layouts.

IXL: Shop selected Tastic Luminate ventilation modules and components for compatible IXL bathroom heating and ventilation systems. Check the model and component specifications before ordering replacements.

Visit the Buildmat Selection Centre

Not sure which ducting or ventilation accessories you need? Our team can help you compare product specifications and identify suitable components for your exhaust fan.

Visit our Buildmat Selection Centre at 45 Warrigal Rd, Hughesdale VIC 3166. Visits are by appointment, so book ahead and bring your fan model number, duct measurements or installation plans.