LOMANCO Whirlybird BIB14BR Turbine Ventilator, 110 mph, Aluminum, Brown

Permanently lubricated upper and lower ball bearing system that ensures long life and no maintenance; all-aluminum rust free construction; exclusive vari-pitch base adjusts to 12/12 roof pitch; tested to withstand winds of 110 MPH. Easy installation and reduces winter ice buildup. Forever guarantee - residential use. BIB12 Dade County Approved 16-0510.26. BIB14 Miami Dade County Approved 15-0831.08. BIB12 features a 20 x 20 base and 17-1/4 height. BIB14 features a 22 x 22 base and 20 height. Turbines are exhaust vents.Permanently lubricated upper and lower ball bearings that ensure long life and no maintenance

Permanently lubricated upper and lower ball bearings that ensure long life and no maintenance

Riveted at every connection

21 air foil curved vanes with rolled vane edges to deflect water

Large flashing for easy installation

Tested to withstand winds of 110 mph

Easy installation

Reduces energy bills

Reduces winter ice build up

Big Whirly 14 in moves up to 37% more air than the 12 in