While reroofing, alot of tiny asphalt particles got scattered around from the old BUR. The new PVC membrane has numerous specks of asphalt on it now. Topside and underside.
I’ve removed them with citrus cleaner where I could but there are many many more to do and the underside of the PVC is of course inaccessible for cleaning so they will remain.
Asphalt shingles also shouldnt make contact with PVC.
This flat roof has overlap contact with asphalt shingles all around the perimeter.
Should I be concerned with this? Is this swiss cheese roof in the making?