Recaulking rubber roof edge
I have a rubber roof 1999 Fleetwood. The roof is in pretty good shape however the edge sealant is degraded. Basically the roof consists of a rubber sheet wrapped over the wooden frame roof edge th...
Forum Discussion
turboo wrote:
What do you mean "roof base material"? The black spots are in the rubber,not holes that show something underneath .( I think, I'll go up there right now and clean off a spot and take a photo of the cleaned area.)
I meant if the white surface layer is flaking off exposing black rubber underneath. Although, upon further research it doesn't look like a white EPDM roof has a black base material.
What is the difference between black EPDM and white EPDM membrane?epdmroofs.org/faq
In addition to the oils and the polymers used to make an EPDM membrane, another ingredient is added to the mix to enhance UV resistance. In the case of a black membrane, carbon black is added, which converts UV rays into heat. With white membrane, in lieu of carbon black, titanium dioxide is typically used to reflect UV rays and prevent it from attacking the polymer.
I also found this which may be of some help-
Truth About EPDM Rubber Roofs
