comments:
phildeferrouille posted on r/rvliving1w
Not a big deal, this is mildew and it's quite normal. Mine was worse (2021 Coachmen, roof made of Dicor Tufflex PVC) . I found the magical product from Dicor and the results were amazing, this product is very good as whitening your roof. I did it last year and my roof is still perfect.