Choosing the right roof vent, well to put it simply it is not that simple due to the fact that a roof vent on its own will do nothing to ventilate the roofspace and cool the home. Why is that?
Well, roof ventilators need to be part of a system, so what you should really be looking out for is a roof ventilation system – so choosing the right roof ventilation system can also be a problem for the layman, there are two distinct advantages for an effective roofspace ventilation system to achieve – these are for a cooler home in summer and for a drier roofspace 24/7.
SO HOW DO YOU CHOOSE THE RIGHT VENTILATION SYSTEM FROM THE START?
When you may choose the wrong kind or two different types of ventilator that do not work well together, not enough ventilation or too much, how do you choose?
Well, for the most effective ventilation system you will need to have inlets to allow the ambient air to enter the roofspace and outlet ventilators to work in cohesion with the inlet to allow the ambient air to circulate and exhaust the stale moist excessively heated air to the outside atmosphere.
You will need a series of inlets and outlets to effectively ventilate the roofspace and cool the home, breaking the roofspace up into zones and having an inlet and an outlet in each zone.
The most effective roof ventilation system will have the inlet and the outlet in the roof covering – within the tiled roof or colorbond roof, this type of system will work for you 24/7 365 days a year. Being up on a roof roof vents need to be able to take all that mother nature has to throw at them so therefore it is desirable for the roof vents to be aerodynamically designed as well as taking the advantage of all the principles of fluid dynamics for roof ventilation – wind driven air flows, convection (Newton’s Law of Cooling) and the venturi effect.
So collectively you need to have roof ventilators with inlets and outlets preferably in the roof covering being designed to harness aerodynamics and all the principles for fluid dynamics. Having just the right amount of inlets and outlets for each zone of your roofspace, then you have an excellent roof ventilation system.