ckb346, welcome to iRV2.com. We are glad to have you join us here and look forward to following your project. I am sure you will enjoy this website and forums.
If you have structural damage you will want to attack this from the top. Everything on the roof will have to be taken off and a good inspection done around all air conditioners, vents and sky lite framing. Let us know what you find and if you can post photos to help us see it; that would be great. Take care and be safe.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7