Can I apply a rolled roofing membrane over a metal sunroof?

I went around the entire sunroof and replaced the damaged seams with new and applied the mesh with sealant. I cut off the gutter edge because it was 3" higher than the roof which created a shallow pool. All in all it truly is a poor design. There was ice build up this year and the leak was not as great as in the past. Can I apply rolled rubber membrane to this metal roof?