I had two vent covers installed today. Lol, not sure why but seemed like a good idea. Does anyone leave their vents open while the TT is in storage? The covers seem like they would keep the rain out.
I never close mine unless I am running heat or A/C. I also put a computer fan in one to keep some air moving. It stays on all the time vents are open, but I am in Florida. Might be different in other places.