I've got a 16' Princecraft Holiday DLX that has a couple of popped rivets on the bottom of the hull. I've replaced rivets before but this situation is a little different. The rivets are on side (seam) guard. I tried to hammer the guard back flush with the hull but it is pretty heavy duty aluminum and I didn't make any progress. It probably needs to be heated up and bent back in but I don't want to attempt that.
Any ideas or places you can recommend for this type of repair?