I installed my toppers mostly to help with water intrusion when the slides were closed. Sweeping the slide roof is OK but with a bedroom slide on a fifth wheel they can get pretty high. Climbing up and walking on a slick roof held no appeal for me. Blowing off a slide top may work for big leaves and sticks but not so good for wet Fir and Hemlock needles. They were a good add for us especially when they ejected a thin sheet of ice at Yellowstone. Installation was easy even though my trailer did not have the top channel pre installed.