[BB_TX]

On the roof recently and noticed I was missing one of the small round vent caps. Also noticed some streaks in the area showing that at some time I had caught a low tree branch down the top curb side of the trailer. No roof damage fortunately.
The caps snap on, but also have a screw hole to secure them better. But the part of the base where the screw goes into was broken off. Bought another cap and snapped it on and it seemed pretty tight so I thought it might hold ok without the screw. Wrong. First trip out and it is missing again.
So I guess I need to replace the base also. Question is, how do you remove the caulking around the base to get the base off? And what kind of caulking do you use to put it back on?
Or I may just use a little Gorilla glue and snap another back on.