phover2337, welcome to iRV2.com. We are glad to have you joinus here and look forward to reading of your adventures. Congratulations on the Yellowstone. You have been given good advise on windows. Clean and reseal the roof seams with a lap sealant. It comes ina tuce for a caulk gun. Good luck and enjoy!
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