Thanks for your replies. Kirk and others, hope this additional post clarifies my original post
I am thinking about having our roof resealed and not replace. The process that would be done would be to clean the roof, caulk as needed, apply a primer followed by two or three coats of EPDM roof coating. Our roof is the original. What we want to do is to extend the roof life of our 17 year old roof for maybe two years before our next RV purchase.
The question is whether we should also have the slideouts done with the primer and coating. Although our slideouts are not as bad as our roof, we were just wondering if we should have the slideouts done. We have heard stories that after the slideout was coated, there were seal problems with the slideouts. We also understand that slide coating is not offered by many companies so there must be a reason for that, besides cost.