I use a Calmark custom made cover for my 40 foot Class A. This is my 4th RV and I've used this brand cover for each of them. Most of my traveling is done during the winter so the cover is used for protection from the sun and to keep it clean during the summer months. I have never had a problem with them rubbing the paint off or getting holes. These covers definitely cost more but they are quality made. I am a 66 year old female and I put the cover on and take it off by myself, usually about a 30 minute job each time. I just take my time and be very careful, especially when on top of the RV.