As a Floridian I searched for a rain protection since it bought an old rv with failing seals. Sun was not my concern, since it’s nothing compared to a subtropical rain fall. The hight tech tyvek cover is freely releasing the water through, and now the situation is even worse: it is crazily hot & humid. Bonus, when you call costumer care they educate you, instead of honoring their “warranty”. So instead of buying this junk simply donate them whatever you want to waste. This is a cover for steaming up rv, so this way your seal are peeling off much faster.