Maintenance-free all aluminum, aerodynamic profile. Built-in weather baffle, extra wide free flow drainage areas, pre-punched nail holes. Design helps prevent insect, rain and snow infiltration. Base adjustable to broad range of roof pitch 3/12 - 8/12. Dade County Approved 02-0524.01. Nos.AR10BLF, AR10BRF and AR10WHF Florida Building Code (FBC) Approved FL5027.