Even when the turbine is not being turned by the wind it gives one more exit point for hot air from your attic.
Wind turbine on roof letting in water.
Normally when there is wind and rain no water will enter the attic space due to the blades moving around.
Just last night i noticed a water stain about 10 in diameter on our ceiling.
A ridge vent runs across the top of the roof s peak.
The pressures created by a 130 mph wind will drive water about 6 inches up through any crack or opening anywhere on the roof gable wall or through the soffit.
Roof vents of any kind work best when there is adequate ventilation along the eaves such a continuous soffit vents.
If you live in a coastal area or have a cabin near the lake then this turbine is ideal.
When the turbine is spinning raindrops are deflected off of the spinning surface keeping your attic nice and dry.
A turbine is installed directly on the top of a roof and uses wind power to suck hot and humid air out of the attic.
The base of the vent where the flashing meets the stack the nail heads the bead joining the upper.
The pressures created by a 100 mph wind will drive water about 3 1 2 inches up through any crack or opening anywhere on the roof gable wall or through the soffit.
We haven t had any issues with them until now.
With a marine proof coating the turbine is able to withstand harsh weather and water splashes unlike other models.
My home has three whirlybird turbine vents on the roof.
The key selling point for this home wind turbine is that it can be installed on land or in a body of water like a lake pond or beach.
The wind blowing across a roof can create a partial vacuum on the leeward side of a roof.
However when there is rain and no wind water can enter the attic and land on the insulation since the blades are not moving.
There s a reason that wind farms are placed offshore rather than in urban areas the turbines are typically huge difficult to erect and need a solid sustained gust to produce any meaningful amount.
Wind that blows across the roof anytime of year also acts to vacuum air from the attic space.
A small 12 inch diameter turbine vent with a constant wind speed of 5 miles per hour mph can remove 347 cubic feet of air per minute cfm from the attic space.
During installation turbine vents are sealed at several points to prevent water penetration.
A turbine has a series of vanes that spin as wind passes through them.
When the wind blows and at the right angle a significant amount of air can be pulled through the attic space by the vacuum created as wind blows across the peak.
Depending upon the diameter of the vents and the wind speed outdoors the turbines can expel vast quantities of humid air before it becomes a problem.