Motorhome cover

Fisherman

My Autocruise Rhythm is parked on my drive and we use all year round. Considering buying a cover to fit over it whilst at home. How easy are they to put on and take off? There is a status aerial fitted, will the cover affect this or does it stick through
the cover?Where do you tie down the cover and is there any likelyhood of scratching the paintwork? Any suggestions welcomed.