Roof back edge

[JLH]

Hello. The rear edge of my trailer has a black seal that appears to hollow. I just noticed that one end is open exposing a 3/4 to 1 inch hole that probably extends to the other side which is caulked over. I don’t recall seeing this before but it may have been this way. I assume the opening needs some caulking. Is that right? Or is the hole for air or drainage - seems unlikely to me but I’d figure I’d ask the experts. Thanks, Jack

[JFlightRisk]

Are you referring to the vinyl insert trim, that covers the screws on the metal strip? If so, that insert trim shrinks a little with cold temps, sun, and age. All it does is cover the screws, and makes it look better. A picture of it might help if it's something different that your questioning.

[JLH]

Thanks for the reply. Maybe that’s it. I will be taking my trailer out of storage and have a photo in the next 5 - 10 days.

[JLH]

Jflightrisk

Thanks!

With COVID-19 it’s been 3 months in coming but I got the cover off and reinspected the trim. Yes, that’s exactly what I have experienced. I need to get some black trim and black Dicor I think. I measured the existing trim and it appears to be 1 inch from side to side including the curved sides - I assume I’ll need 1 inch trim then.

Jlh

[JLH]

This is a photo