I gave up trying to salvage the paint because of too many small bubbles in paint ect. ect. While stripping the roof I noticed the crack in the paint at the seam. They filled it with bondo along with 2 coats primer followed by more primer and paint. I figured too much to paint over anyway. But how should I fill the seam ( which looks to be deeper and wider than it should) so the new paint does not crack? Thanks for all of your help during this project.

Jim M.

Are you talking about the seam that is above the 1/4 window?

Yes , thats the one. Sorry I was not more specific on the post.

Weld it up. It's originally a lead filled seam, but over time the lead cracks and cracks the paint also. You could re lead fill it, but it will crack again over time.