Some electric fans run continuously but most are controlled with a thermostat.
Whirlybird attic fans.
An exclusive vari pitch base adjusts to a 12 12 roof pitch for use on many roof applications.
When installed with adequate intake ventilation the whirlybird turbine reduces energy bills and the likelihood of winter ice buildup.
Get free shipping on qualified roof turbines or buy online pick up in store today in the building materials department.
This device senses the attic s air temperature and.
How much air must be moved.
A largely arbitrary rule of thumb that s been adopted into most building codes calls for 1 sq.
Anytime the fan blade turns it draws air through the attic space.
Find roof turbine vents at lowe s today.
The whirlybird s large flashing makes installation easy.