Exhaust Systems

Design Features and Accessories

Weather resistant
Robertson Exhaust Ventilators are weather resistant under all positive flow conditions. All Robertson exhaust ventilators incorporate inbuilt drainage systems. Additional modifications are included for high rainfall areas.

Acoustic treatment
All Robertson natural ventilators can be acoustically treated to provide varying degrees of noise attenuation making the exhaust air passage compatible with Robertson acoustically insulated roof, wall and louvre systems.

Minimal maintenance
The use of Robertson's unique Versacor barrier coating provides maximum protection from the concentration of corrosives that all ventilators must withstand.

Frame protection
As standard, any steel support work is provided with a galvanised finish. Additional or alternative finishes are available on request.

Typhoon/Cyclonic resistant
Robertson ventilators are designed and have been proven to function effectively under high wind load conditions.

Applied Load Charts
Applied load charts Monitor and Ultra-Flow ventilators are available from your nearest RVI Service Centre

Optional Accessories

Birdscreens
Are supplied in materials compatible with each application.

Dampers
In order to control the exhaust rate for ventilators, simple damper arrangements are available. Dampers may be manually, electrically or pneumatically operated and can be provided with control panels if required.

Corrugation closers
Are manufactured from a closed cell polyethylene foam strip pre-profiled to suit most standard roofing profiles.