All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows.
How to install a whirlybird on a flat roof.
Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents.
Step 4 install the flashing panel.
Step 1 identify the ideal location.
Step 5 install the.
Fasten the collar and flashing panel on the roof.
Installation of a whirlybird is not so expensive because the process only requires removing a section of roof shingles and drilling an appropriately sized hole to fit in the whirlybird.
At this point take the whirlybird up to the top of the roof and place it centrally over each hole you have drilled tracing out the perimeter of the cylinder on the outside of the roof sheet.
Unconventional install of lomanco whirly bird gt 12 on tin roof.
Step 3 cut the hole.
Most homeowners prefer installing the whirlybird on the side of the roof that is out of sight.
How to install a whirlybird on a metal roof.
For tiled roofs the same principle applies but you will need to cut each affected tile individually.
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Step 2 mark the position.
There are metal straps and screws provided for the fastening of the collar and flashing panel on to the roof.
Roll 40mm of the top edge up and over ensuring a return lip of 15 20mm is gained.
Reposition the flashing panel over the roof opening.
Ensure that you have each of them in the right position before placing the metal straps.
They should be placed at 5 7 and 12 clock positions.
Step 3 installing the whirlybird.
How to install a lomanco whirlybird turbine vent add ventilation your roof s attic space.
Make sure the shortest side of the flashing panel is facing down the roof slope.
Then remove the whirlybird and starting from the centre hole cut out the circle you have drawn.