Powdery paint on EPDM roof
Trying to clean the EPDM coat for installing solar panel mounts, with roof sealant under the mounts. With tapping screws into the roof plywood and rafters. The white "paint" doesn't look like a pai...
Forum Discussion
Almot wrote:You got it, it is a coating that is oxidizing and separating from the underlying EPDM.BFL13 wrote:
Somebody posted that white powder comes off for ten years and then all that is left is a black roof.
Makes sense, if this is oxidizing, i.e. slow disappearance of the white coat. The "white EPDM" is actually black on one side, so the white surface is a paint. When all the paint is gone, you see the real black color. Thorough cleaning on that small area for the bracket brought up some black dots where the white paint has worn thin.
