If you are not fortunate enough to have a covered place to store your trailer during winter like me, here is what I have found works best after winterizing. I have over the years found the expensive RV covers to be a huge disappointment and waste of money. What I do is cover any sharp edges (awning ends etc.) with foam wrap then slide heavy weight clear plastic sheeting (not the black type, it leaves marks) over the entire roof as an extra measure and then I use a white 'Ag cover' from tractor supply. they are stronger, longer lasting and have stronger grommets for tying down and are way cheaper than the average RV covers. Hope this helps someone.