Enviromax Motorised 250mm Roof Ventilator – Double Cap

Keep your roof space cooler and better ventilated with the Enviromax Motorised 250mm Roof Ventilator – Double Cap. Designed for higher-capacity roof-space ventilation, this powered system actively extracts trapped heat and moisture without relying on wind.

The double-cap design delivers an airflow rating of approximately 820m³/hr, making it suitable for larger roof cavities or homes requiring greater ventilation performance. Its thermostat-controlled motor automatically switches the ventilator on when the roof space reaches the set temperature and turns it off once conditions cool.

By removing built-up heat and moisture from the roof cavity, the Enviromax can help reduce heat transfer into the home, protect insulation and roof materials, and support a more comfortable indoor environment.

Key features

• High-capacity motorised roof-space ventilation
• Approximately 820m³/hr airflow
• Performance equivalent to approximately 7 typical wind vents
• Double-cap design for increased extraction capacity
• Thermostat-controlled automatic operation
• Operates independently of wind or sunlight
• Helps remove trapped heat and moisture from the roof cavity
• Helps protect insulation and roof structures from moisture build-up
• Durable, non-metal construction
• Suitable for Australian roof conditions
• 2-year motor warranty
• 7-year flashing and vent-cap warranty

How it works

The powered fan draws hot, moisture-laden air from the roof cavity and exhausts it through the double-cap roof ventilator. The thermostat automatically controls operation according to the temperature inside the roof space, providing ventilation when it is needed.

For effective performance, the roof cavity must have adequate intake ventilation through eaves, soffit or other appropriately positioned vents.