The Adco Olefin HD All-Climate + Wind RV Cover for Class C Motorhome, # AD54ZR is constructed of non-abrasive, triple-layer polypropylene. This has built-in vents that allow air to escape in windy conditions but you will want to use the cinch ropes at front and rear of cover remove slack and reduce billowing. If properly installed, this will not cause damage to the painted surfaces. view full answer...