You will need to decide on the exact positioning of your wind turbine or turbines.
Turbine vent installation metal roof.
Record those measurements on a notepad.
There are a few decisions to make before starting your whirlybird installation.
The wind seems to blow constantly so i expect this roof turbine to perform quite well and it comes wi.
Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof.
Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.
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Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space.
This video demonstrates the installation of a whirlybird roof ventilator on a trimdek metal roof.
The ideal position is to fit the base plate of the roof vent as far as you can under the ridge capping.
Attic must have 5 sq.
Measure the body of the vent.
When you have figured out precisely where the vents will be installed place the neck of the turbine up against the roof inside the attic.
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Using your marker pen trace around the edges of the vent on the underside of the roof.
You will need to cut the shingles.
You will then need to take the vent up to the top of the roof placing it centrally over the hole you have drilled and cutting around it.
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I vented my metal roof with a whirlybird roof turbine.
These can be ridge vents wind turbines or the flat vents your roofer wants to install.
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