I guess I should have given a little more info. I have a 45foot trailer that I am using to load my drag bikes and putting in living quarters. The previous owner put some diamond plate on top and was going to use it as an observation deck. The roof leaks I think from the pop rivets that he used to secure the plate to the roof. So I was looking for what the best type of (paint like) material to use to coat over the rivets and any other seams/cracks that might be up there. I was going to use that snow roof stuff that they put on mobile homes, but thought I would check with the knowlegable membership here.
Mike