Originally Posted by Shanks12
And on an un-related note, I noticed this in the bathroom. Would you be concerned. I'm guessing this is an easy way for water to get inside. not sure how long it has been this way, but we have had a lot of rain the past few days and I don't see any leaks. The other side has the seal bubbled up as well. In the picture behind the crank it is actually broken in half (the seal).
The vent lid does have a lip that extends down beyond where the seal contact point is so you still have some protection in the rain. It probably won't seal going down the road though with the seal bubbled up like that.
Sometimes that seal will swell (the sun as well as roof treatment chemicals sometimes don't always play well with other materials) and I've been able to slip it back in place on the metal lip of the vent housing and cut off the excess.
As mentioned vent covers will help but you are going to need to address the seal regardless.
I'd have more concern about that big @s$ bug on the vent screen!