1996 36' Gulf Stream Scenic Cruiser on Spartan EC-2442 Chassis | Cummins B5.9L 230hp ++ | Allison MD3060 6-Speed
From this thread, it appears our Coach has a EPDM roof. It is original (21 years old) and I know we should probably replace it and will budge for that over the new couple years.
It looks like a rubber coating had been rolled on top in the past and in some areas has peeled (please see picture below).
Took a damaged vent cover off (already purchased one new one, will be replacing covers for both vents) and noticed the cracks in the old Dicor. Used my air compressor to blow stuff out of the cracks in the old Dicor around the vent. Also used a plastic putty knife to get some of the old Dicor off the vent cover brackets.
To clean around the vent, I want to use Turpentine (on a cloth) and ordered a 4oz bottle of this: http://www.diamondgforestproducts.com/~shop/4-oz-100-pure-gum-spirits-of-turpentine/186769/
Supposed to be pure and from Pine Resin, not from the wood chips/pulp. I know Home Depot has Turpentine but read bad things about it. I know some use Mineral Spirits or Denatured Alcohol to clean/prep the old Dicor before applying new Dicor. I also read not to use anything on the roof that is petroleum based. I see if you are careful with the cloth, just cleaning with Mineral Spirits/Denatured Alcohol on only the old Dicor probably is okay.
1)Should the Turpentine linked above be good for me to clean the old Dicor around the vent and other areas needed another layer of Dicor 501LSW?
2)Should I try to remove more of the old Dicor?
3)What about using EternaBond 4" around those vents instead of new Dicor, again knowing that the roof probably is past it's life and will need replacing in the future?
A concern I read about using EternaBond around vents is that it can be difficult to remove the EternaBond if the vent itself needs replacing.
I'll use Dicor around the skylight where there is a crack in the Dicor.
I'll post another question about fixing the peeling on the coating in Post #2