PVC UV Stabilized Ventilation Units
Currently, there are several WhirlyBird roof ventilation products on the market. Our WhirlyBird roof ventilators of choice are the UV stabilized Pvc plastic units. In short, these units will give many years of benefits as they will not rust with time. Additionally, the bearings are sealed and are expected to last for many years. Also, the Roof Ventilation units’ design is more verticle than the traditional onion shape with a far lower ventilation rate.
Aluminium Roof Ventilation Units
The old-style whirlyBird roof ventilation units were made from aluminium. The ventilation units work well; however, the one downfall is corrosion as coastal air and aluminium do no go well together.
Stainless Steel Ventilation Units
The stainless ventilation units are a little on the heavy side, so they don’t spin as effectively as the lighter units. However, they do still remove heat and stale air from the roof space.