Interesting info here, even if its almost 2 years old. Back when I was uneducated and had a metal camper with some leaks, I had a mobile RV shop come out and they taped and rolled the roof with rubber coating. They then applied acrylic latex chaulking, in a thin, neat bead, around all the windows, vents etc. Removing all these protrutions and Butyl tapeing them would have been the correct method but I wouldnt have paid them to do that and didnt have time or experience to do it myself. Now that I have my beloved Casita
, things will be done right on it. More time, money and Im keeping this one.