Lomanco BIB12B Rigid Spider Turbine Aluminum Ventilator, Black Goggles Meets all UL 1786 requirements

Meets all UL 1786 requirements

Can be used with fiberglass cloth or mat if additional strength is needed

but works best with a few minutes of open time

Anchor-down - flat head

SBS modified and metal roofs

Lomanco BIB12B Rigid Spider Turbine Aluminum Ventilator, Black Goggles Meets all UL 1786 requirementsHighlights: Type: Rigid Spider Air Veocity: 110 Mph Material: Aluminum Vent Hole Size: 12" Base Size: 20" x 20" Standards: TDI, Miami Dade County Approved Special Features: 12 12 Roof Pitch, 302 Stainless Steel Ball Usage: for residential use only Forever guarantee residential use only Approved for all tile and slate roof construction Permanently lubricated upper and lower ball bearings that ensure long life and no maintenance All aluminium rust free