The black mold spots that grow over time on this roof are not a major concern.
Black spots on edpm roof is it mold.
This typically means covering the vehicle whenever it is in storage.
The only reason to clean your roof is to reduce the black streaks and there are much better and more effective solutions imo for that issue.
The sun comes out and dries up the water but also gives mold spores what they need to grow.
It generally goes by the name of synthetic rubber and many manufacturers use it in their design.
For those with fiberglass roofs this can be cleaned away in exactly the same way as mold spots on the siding are cleaned.
Keeping your roof dry is the best way to prevent mold from growing.
Some covers are not resistant to wind.
During a windy rainstorm water can get up under the cover and settle on the roof.
Mold stains can form on roof shingles that are in permanent shade.
Occasionally campers will have issues with mold growing in their rv roof.
Mold and or mildew on your epdm roof is simply a parasite that attaches itself to the roof.
Dicor recommends that you wash your roof an average of 3 4 times a year using a non abrasive cleaner and a medium plastic bristle brush.
These roof invaders require a moisture rich environment usually.
The black spots discoloring your asphalt roof are more than likely the pervasive and prevalent algae known as gloecapsa magma.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
Your roof is at risk of accumulating black spots that often come in the form of black mold or mildew if it is often exposed to extensive moisture.
However if you have a rubber roof the job becomes a bit complicated.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside not to worry though because you can clean the mold off with basic household bleach and save.
That usually happens if you park your vehicle beneath trees that drop fruits or seeds further exposing your rv s roof to moisture even longer.
Regular cleaning of your rubber roof will help prevent mold and or mildew from forming on the epdm roof.
Epdm is one of the most common and reliable rv roof materials.
How to clean mold from an rv roof.
Just clean them off with the above mentioned rubber roof cleaner and if you want put a coating of uv ultra violet protectant on.