cupolas
dayton 4hx63 roof curb18 in high
roof curb adjustable ventilated curb height 18 in inside square 28 to 43 in outside square 31to 46 in for commercial kitchen uses 16 gauge galvanized steel construction use with dayton ventilators having a square base from 32 1 2 to 44 1 2 inches br b features b ul li curb height in . 18 li li for use with nfpa 96 ul 705 and ul 762 applications li li inside square in . 28 to 43 li li item roof curb li li outside square in . 31 to 46 li li type adjustable ventilated li li construction 16 gauge galvanized steel li li use w dayton ventilators having a square base from 32 1 2 to 44 1 2 li li top flange surface width in . 1 3 4 li li flashing flange in . 5 li ul