[Jim W]

Others may chime in but I have never covered my two 5ers. They sit out all year. Either in a storage lot or we are camping in the 5er at a campground. I will wash and wax the unit twice a year once in the spring and once in the fall. This is the only protection that I have done to them.
The trailers are built to with stand the elements and I have had friends that have had there units ruin by covers. The wind will whip the covers against the camper body and this will wear away the fiberglass on the camper.
My other thought is what about full timers that live in their 5er year round. Do they cover them?

The only item that I cover are the rubber tires to protect them from the sun light.
Jim