I figured no scraper. That thought scared me I’ll start with that. You think Dawn Dish soap is good enough? Any specific scrubbers with a pole you could recommend. Thank you
Your going to have to get on the roof and do by hand, no way around that, for soap, liquid dish detergent any brand. Scotch brite, I'd start with the one that is a the blue sponge should do the job, next is the green pads, but don't get too aggressive with the glass
IPA is certainly worth a try, but I don't think it will dissolve paint before desiccating, which is why I thought a 'stickier' solvent with some hold time would work best, esp. if applied and removed by cloth. IPA does work wonders on tar spots when I detail my Jeep, but I have to keep at it since it dries so damn fast.
Maybe I’ll do a mix. Start with distilled water rinse, top with some dawn and a soft sponge or Scott brite. Maybe try rinsing with some alcohol then more distilled water. If that doesn’t work maybe a harsher chemical.
Still going to work with the company who painted it to see if what they will do.
I just got some paint and self leveling sealant on my panels. I removed it with pressure washer because I don't want to use harsh solvents that could affect the seal to the frame. Or damage the back sheet.