Moisture in Bathroom Vents and Light Fixtures
Posted on Apr 15th, 2020
Check the exhaust vent cover on your lanai. The louvers on this vent do become brittle and will lose their ability to seal.
A simple, efficient and inexpensive fix is to purchase a new vent cover. You can then snap the new louvers from the unit you just purchased on your existing cover. You can buy a new unit - a 6" Deflecto Vent Cover with or without Bird Guard from Amazon for about $15 -$20.