Wanted to inquire from roofing professionals and enthusiasts with experience with either. I need to vent a 6-inch kitchen hood and a couple of bathroom fans. Everyone in my area sells Broan or Lomanco (which looks exactly like Broan). However, reading people’s experiences online suggests a lot of leaks with Broan vents with higher winds and rain. Apparently the flimsy damper flap opens in high winds and lets rain in, which then drips through the ducting.
I cam across IPS SnapCap Jack Vents - they use plastic damper instead of flimsy aluminum, however the damper is flanged and actual opening is smaller. Broan’s opening is almost 10 inches, which increases chance of rain penetration. Since I only need a 6-inch vent, IPS seems to hit the spot. Does anyone have experience with IPS vs. Broan? Any other suggestions for a good quality lower leak risk Jack Vent? I looked at Famco branded option, but their looks to use similar flimsy aluminum flap, but at least it has rubber seal instead of Broan’s foam seal.
Any suggestions would be highly appreciated.