So how many times... Late at nite ..the wind picks up, just a bit, and you here tap...tap..tap tap. As the vent over the stove on the outside taps back and forth. Just enough to wake you out of that Bliss full nites sleep. After Long hrs of computational math, Months of experiments... and 34 Travel trailers Motor homes and 5th wheels...WA LA the band aid... taking two regular finger sized band aids and attaching to the inside of the flap.... no more late nite tap..tap...tap. + they are thin enough to still latch the cover for transport. Thought I'd share this Multi Million Dollar fix with the rest of my R-Ving Friends. Stay safe... and remember .. shinny side UP.

A couple of pieces of old refrigerator gasket magnets hot glued to the flapper and the housing does the trick too.

hehehe