roof pitch to 7/12. GT-12 is an internally braced 12" turbine. Residential or light commercial use only. Turbines are exhaust vents.
Extends the life of shingles, insulation and other building components by exhausting damaging heat and moisture from attic space
Galvanized steel construction for lasting durability
Wind powered turbine maximizes ventilation capacity while geared towards going green
Includes roof pitch gauge to help determine roof pitch