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.
Do turbine roof vents work?
Highly Effective. In low wind situations, turbine vents do an admirable job of moving warm air out of the attic areas of a property. However, when the wind is blowing, these vents turn into a powerful vacuum of warm air, drawing it up through the vent as effectively as any powered alternative.
How many turbine roof vents do I need?
A general guideline is homeowners need one square foot of roof vent for every 300 square feet of ceiling space, if your home has a roof with a vapor barrier, or 1:300. If not, you should have one square foot of roof vent for every 150 square feet, or 1:150.
Do turbine roof vents leak?
Turbine vents are a type of exhaust vent. They have fins that open when they turn in the wind, and this spinning action creates suction that draws hot, humid attic air outside. Turbine vents can leak, but you don’t always have to replace the vent.
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.
Do whirlybird vents work?
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.
How effective are whirlybirds?
Whirly birds just by themselves are not very effective. They require vents (either in the eaves or in the ceiling of the house) to let cooler air in as the warm air is expelled through the turbine. So, if you are getting whirly birds installed, make sure that there are adequate ceiling vents to allow air replacement.
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.
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.
Are ridge vents better than power vents?
While a power vent fan combined with a ridge vent can work against the natural flow of air through the attic, it will still exhaust more hot air than not having a fan at all, it’s just not the most efficient way to go about it.
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.
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 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.
How much does it cost to install a roof turbine?
Roof Turbine Installation Expect to pay $65 to $250 to install a roof turbine, including labor and materials. Units are priced $20 to $100 each. A pro can install one in an hour or two at a rate of $45 to $75, for a labor total of $45 to $150.
What is a Globe vent?
Description. The FAMCO GBV globe vent is an economical gravity ventilator for use on residential, commercial and industrial applications. This vent is not rated for any forced exhaust applications. The FAMCO GBV features watertight construction and a low silhouette while offering positive draft for good airflow.
What are the best whirlybirds?
In terms of whirlybirds, the Windmaster is perhaps the most reliable of the lot.
