A solar fan is able to actively pull more air into your attic than a turbine can.
Solar conduit on roof vs in attoc.
Cons of solar attic fans.
These new england clean energy installations are neat tidy and attractive evenly spaced panels the arrays fit the roofs well and not an inch of conduit in sight.
When sunlight is blocked for whatever reason the fan comes to a halt immediately.
The solar fan does have its downsides.
This is a solar panel supplying free electricity to the attic fan under the silver dome on the rear roof.
A solar fan doesn t rely on the wind and it actually has a more powerful motor in it so it keeps the temperature of your attic regulated regardless of wind conditions.
When there s sunlight the fan runs on solar and when there s not it switches to ac power so you get daily cooling regardless best roof mounted.
Solar power is safer to use with an attic fan.
Conduit runs are hidden under the panels and inside attics not run over the top of the roof.
It will only function when direct sunlight falls on the panel.
Other factors also affect the operation of the solar fan.
They also create zones of negative pressure that could pull the ac cooled air into the attic.
That means tough luck if your attic is still hot when the sun goes down.