TPO roof not coming clean

[starcraft69]

I am looking for some help in how to get my TPO roof clean. I have a 2015 jayco Eagle HT and cant seem to get the roof clean. I have used mild soap with brush, pressure washer, hand brush. It still has stains from leaves and from boots when on it wet and dirty. What can i do to make look new again?

[SoundGuy]

B.O. Plenty wrote:
The harder you scrub the more of the outer wear layer you take off.

With an EPDM rubber roof membrane, yes - with the TPO vinyl roof membrane the OP has, no - the outer layer does not rub off. That's one of the main advantages of TPO - it doesn't chalk as EPDM does. Regardless, once stains are embedded in the material it's not coming out.

[ksg5000]

I used to place a bar of lava soap in an old sock .. put my son on the roof and he scrubbed it clean. Looked brand new. When son moved out I decided that looking new wasn't necessary.

[old_guy]

rule number one, don't worry about it. you can scrub until you wear a hole in it and it will still look dirty

[B_O__Plenty]

The harder you scrub the more of the outer wear layer you take off. Lightly wash it with mild soap and a soft brush and rinse it off maybe once or twice a year. That's all. Nobody will notice, or care.

B.O.

[TurnThePage]

It looks clean from the ground.

[T18skyguy]

When I had a EPDM roof, it was the same. No way to get it pure white. I cleaned it real good with Dawn dish detergent let it dry, and put two coats of Kool Coat on it and it looked good for 12 years.