A RV tech told me to clean and treat my roof. But only remove sealant if it was already loose. He said that after cleaning if there were spots that werent loose but I didnt really like the looks of, just apply more sealant over the top of the other.
He said you risk doing more harm than good to your rubber roof by trying to pull or scrape off sealant that is stuck down.
2012 305sk traded, and 2010 F-350 power stroke with 220,000 miles. 2012 F-250 power stroke
2015 Grand Design 337 RLS