I just bought a Trail Lite B+ 211s with 8.1 Chevy engine. This is my fifth motorhome (others range from an old 20' Vagabond, and three Winnegagos, from 19 to 32'. This vehicle is fantastic. I am...
Pretty easy to replace, actually. Carefully pull the vertical weatherstrip on the sides up to the edge of the roof; unscrew the screws in the aluminum strip beneath that weatherstrip; unscrew the screws on the inside edge; then carefully separate the double-sided-adhesive-taped edge on the back wall.