Throughout the years we've found Dawn liguid soap is a good overall cleaner/degreaser. After washing down the roof I always then wash the trailer sides. Don't want any streaks...
Always double check the front roof seal as it takes the worst beating from the wind while traveling. Eternabond tape is the best but be sure to clean well before using it.
Bill B. (S.E. Michigan)
2014 Keystone Cougar High Country 321RES (was 2007 Eagle 322FKS)
2007 Dodge Megacab CTD