Sealing my TC's EPDM Roof

Hemi Joel wrote:
I am a commercial/industrial roofing contracor. We have installed millions of square feet of EPDM on flat roof buildings over the last 40 years. Believe me, you do not need to coat EPDM. A good EPDM will last over 30 years before it starts to break down. The problem with an RV roof is the penetrations. If I flashed commercial roof penetrations the way RV manufactures do, I'd be in prison. So maintain your penetrations. Do not let any cracks go, inspect often, do not let any water get under your roof. Water under the roof breaks down the surface of the underlayment and the bond to the EPDM will be lost. Dicor works fine at keeping up on them. The biggest enemy of EPDM is oil. Do not repair it with asphalt plastic cement, or anything oily, and do not clean it with anything oily. It is not necessary to clean your roof, but if you feel like you want to just because, use mild soap and water. I have 35 year old roofs that have never been cleaned. But DO scrub the repair areas clean with soap and water and a scotchbrite pad before applying the Dicor, this will help it stick.