Some of the discussion suggested using murphy s oil soap on the roofs.
Simple green on epdm roof.
Simple green is an all purpose cleaner that is suitable for cleaning your rv s rubber roof.
The recommended dilution ratio for cleaning your rubber rv roof is about 1 10.
Epdm rubber is widely used as the waterproof membrane for green roof construction because of its waterproofing properties and resilience.
Mix 6 ounces of simple green all purpose cleaner with 8 cups half gallon of cold water in a bucket or large container.
For example if used on uncoated aluminum and left too long before washing off it might dull the finish.
These rubber roofs can fall into one of two different types.
Clear the rv roof of any debris leaves or loose dirt with a broom.
You should rinse thoroughly with water after cleaning with simple green.
I won t use it on clear plastics like an instrument panel as it may cloud it.
It does not contain any abrasives solvents d limonene or petroleum distillates.
Wet the roof and spray on the simple green.
From what i have read elsewhere murphy s oil soap can be used on tpo roofs don t quote me though do your own research if you own a tpo roof.
Do not use this for your epdm rubber roof on your heartland trailer.
Tpo rv roof thermal polyolefin and epdm rv roof ethylene propylene diene monomer.
Simple green is a very powerful degreaser and can cause problems when used on certain surfaces.
For rubber roof i have always used the blue dawn dish soap.
Directions for cleaning a rubber rv roof.
Also need to rinse off the roof water from the sides to protect the wax.
A green roof also known as eco roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane.
Scrub with a soft brush and rinse the roof with plenty of water.
Also be aware it may strip off waxes.
I d be careful with the runoff down the sides.
Mix your cleaning solution.
But simple green is nontoxic and does not contain bleach ammonia formaldehyde or petroleum distillates so i guess your good to go.