I wash mine at home, I usually wash it twice a year, once at the beginning of the end of the season. I treat my roof at the same time. I use a wash/wax combo and have had good results in the short year we have owned it.
2015 Forest River EVO 2850
2012 Dodge Ram 2500 6.7 Cummins
Yamaha 2k x 2 with parallel cable
EMS 30 PI portable w/ Edison plug
Nights Camped (2016-13) (2015-13)