Condor Kinetic roof ventilators and roof ventilation systems 07 3272 3737    
     
 

architectural notes

       

 
     

Roof Ventilation Fans pt 2

The prevailing wisdom would seem to be against using fans for venting the heat out of the roof, particularly during summer months as regards to operational life and efficiency of the fan.

Of course there is nothing to prevent you from using a fan(s) for air ingress (eaves) into the roof space as the ambient air flowing over the motor is never going to be critical and as long as the roof ventilator does not create too much resistance so as to cause the fan motor to overheat, then it could be considered an alternative in creating a positive flow in ventilating the heat out of the roof space.

In all cases the roof ventilator needs to be able to cope with the flow required to ventilate the roof efficiently and the duty of the fan needs to be proportional to the release as a pressurized roof under these circumstances is something to avoid.

 

 
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