I have asked about this before and I really couldn't find anything that would work. I found this pic of a pop-up camper with something that kind of looks like what I am talking about. Imagine a cover that is light weight, breathable, easy to cover and remove, it does not have to be water resistant just provide good UV protection. My camper is stored outside and during the winter it is covered by a nice Adco cover, but it is not easy to cover/remove and would be damaged from the constant on & off.
The cover in the below pic is about the coverage that I would be looking at. The sun is brutal to the exposed top of the camper and I think this would prolong the life of the roof panels and exposed components.
The corners on the summer cover would need to be reinforced and some type of bungee cord attachment that is easy to secure would be nice.
If anybody knows of something that may be close to this let me know. If I can find some time I will contact Adco and some other cover manufactures and provide them with this concept for a summer cover.
Let me know if you think this is a good idea or not!