Table of Contents
Where should a turbine roof vent be installed?
Whirlybird® turbine vents should be located near the peak of the roof on the rear slope, exposed to the wind from all directions. When installing two, place each one ¼ of the total length of the roof peak from each end of the house.
Are turbine roof vents any good?
They are incredibly effective at venting hot attic air, but there’s not always room for them. When an attic space needs ventilation but there’s no more room for ridge vents, turbine vents are usually the next best solution. They are very flexible regarding placement, and there’s almost always room for them.
How do roof turbines keep water out?
During installation, turbine vents are sealed at several points to prevent water penetration. The base of the vent, where the flashing meets the stack, the nail heads, the bead joining the upper and lower sections, and the vertical seams in the stack are typically sealed with roofing cement or silicone caulk.
How many turbine vents do I need?
How Many Vents Do I Need? The general rule of thumb in these situations is of roughly one vent per every 300 square feet of attic area if the attic has a vapor barrier. If not, there should be one vent for every 150 square feet. You will need to have 1 square foot of vent area for every 150 square feet of attic space.
Do whirlybirds let rain in?
When installed by professionals, whirlybirds do not leak or let in rain. When there is no wind and the turbine is not spinning, the rain water simply runs down the outside of the fins on the whirlybird turbine.
Should I cover turbine roof vents in winter?
Roof ventilation is important year-round. You should absolutely leave your roof vents open during the winter – do not cover them! During the winter, roof ventilation works to keep temperatures even. Closing your vents makes the attic space too warm and dry – dangerous conditions for mold as well as pests.
Are whirlybirds worth it?
The answer to the question “do whirlybirds work?” is yes. Whirlybirds work to remove hot air from roof voids, effectively ventilating the room or space below. This helps to keep houses and properties ventilated, clean, and prevent the accumulation of hot air.
Which is better ridge vents or turbines?
If you value a more subtle look, the ridge vent wins in that category. Still, despite running the entire length of your roof, ridge vents are static and won’t move air the same way turbines do. As long as there’s a healthy amount of wind to power them, turbine vents will provide superior ventilation for your attic.
Do turbine vents rust?
MAINTENANCE/CARE Some roof turbines have ball bearings that need maintained and lubricated every once in a while. Rust can also become a problem for some roof turbine models. To prevent rust, look for aluminum roof turbines.
How long does a turbine vent last?
A single 12-inch-diameter turbine vent can provide a complete change of air in the attic space every 52 minutes if the outside breeze is just 5 mph. A 14-inch diameter unit can provide a complete air change in the attic every 14 minutes if the wind is 15 mph.
How do you stop a roof turbine from squeaking?
If the squeaking persists, or gets better but does not go entirely, try spinning the fins and spraying some more as the fins spin. Most of the time, this will be enough to cure your squeaking roof turbine vent.
How do you install a whirlybird on a tin roof?
Place the whirlybird so that it overlaps the ridge cap. Use the whirlybird base as a template and mark a circle. Make a hole and circle using snips. Remove any teks from the ridge cap. Place the whirlybird base under the ridge cap. Bend the sides over the sheeting ribs. Tek the whirlybird base into place.
Can rain get into roof vents?
But some roof air vents sit fairly flat to the roof, with a mushroom style hood and unprotected sides. And on occasion a hard driving rain with whipping wind will cause roof vents to leak water. If your roof vent leaks during heavy rain, the rain may be blowing up under the hood and into the vent.
What does a turbine vent look like?
Turbine vents do indeed look like small wind turbines installed on your roof. As the wind moves across your rooftop, it turns these turbines and draws air up out of your attic area. No additional source of power is needed, and turbines are available in a wide variety of sizes and styles.
Are turbine vents waterproof?
Turbine Vent Cover 420D Waterproof Material: Window air conditioner cover are made of high quality 420D waterproof oxford cloth, with a silver inner layer, better waterproof effect, washable and durable.
Can you have too much ridge vent?
Yes, it is possible to install too much ridge vent. Passive attic venting systems are now designed so that they intake air from the soffits and expel air near the ridge. This is normally done without power by using the fact that hot air rises.
What happens if a roof is not vented?
Unventilated or poorly ventilated attics don’t have an escape route for the heat that builds up. This buildup of heat can damage your shingles from the inside out. An evenly vented roof will allow the hot air to escape keeping your roof and attic cooler.
What size roof turbine do I need?
Measure the square footage of your house and calculate the number of vents necessary for them to work properly. Refer to the chart in the references section for further details. For example, a house that is 1,300 square feet requires two 12-inch wind turbines.
