Lomanco LomanCool LPR10B Series Ridge Vent, 3/12 to 12/12 Roof Pitch, 10 ft L, Aluminum, Black Black (Pack of 10)

one-piece construction. 3/8 x 1/2 in slotted weep holes in wind baffles for water run-off. 1/8 x 1 in louvered openings inverted to block weather infiltration. Can be cut to desired length at 2 ft intervals. Pre-notched nail holes. 2 in W nailing flange. Male/female connections, no straps necessary. Adjustable from 3/12 to 12/12 roof pitches. 18 sq-in of net-free ventilating area per lineal foot. Miami Dade County approved 11-0602.01. 43 cfm at wind velocity of 3 mph, 117 cfm at wind velocity of 8 mph, 221 cfm at wind velocity of 15 mph. Online purchases are in packages of 10.