cleaning a rubber roof

thanks to all that replied. guess im not going to wash it then

X-2 for Murphys Oil Soap.

The roof material is designed to chalk. The layer of chalk acts as a 100% effective sunscreen for the unexposed material under it. Washing the chalk off means that a fresh layer of roofing material is exposed to weathering, and chalks sooner, and is subsequently washed away.

The #1 manufactuer of roofing material for RVs is Carlise. They sell it to Dicor, and it is sold to the RV industry under the Dicor label.

Years ago Dicor did NOT recommend washing of the roof. They actually frowned on it, in their frequently asked question section. But the RV owners kept asking them how to do it.

Dicor decided that this was a money making marketing opportunity and roof washing products were created to fill the demand.

A visit to the Carlise website reveals that the same material is made by them for the commercial building market. Washing is NOT required and is only recommended for the white material to remove dirt if maximum reflectivity is desired.

Mine gets washed when it rains.

I just use the same car wash soap I use for the sides and all my vehicles and a soft wash brush.

I don't need it sparkling white, just need to get the dirt off so it won't run down the sides and stain the siding..

11 year old trailer and no issues so far!

Good luck!

Mitch

The literature that came in my trailer warranty packet from the roof manufacturer
says Murphy's oil soap.

I use about a scoop of powder Tide in a bucket of hot water and a soft RV scrub brush.

ScottG, why would you say it shortens it's life?

I just use a soft bristle brush attached to a hose. Fresh water and a soft scrub once a year.

The RV has sat outside for 19 years and the roof is now showing signs of need for replacement or application of a sealant.

Just a thought but the more you clean it, the shorter its life.
Good luck.

I use "BEST" it's a cleaner/treatment and works really well for me.