Forum Discussion

biggjb's avatar
biggjb
Explorer
Jun 15, 2019

Rubber roof confusion

I am in the middle of repairs on my TC and have removed a portion of the rubber roof due to holes and damage. I also repaired the roof and replaced the OSB with plywood. I am replacing only this portion of the rubber roof and am going to buy enough rubber roof to cover it. my confusion is when I go to various websites they state either EPDM or TPO material. Are they both the same with the same physical properties? Also, if they are different I am not sure which one would be better for the TC roof. Camping World sells rubber roof cleaner and repair kits. Can these products be used on both the EPDM and TPO material? Thanks in advance as I am coming close to finishing my TC.
Truck Campers
  • gitpicker2009's avatar
    gitpicker2009
    Explorer
    Jun 15, 2019
    There's a company here in the Houston area which will remove your old rubber roof and replace it with an indestructible spray on bedliner material. When mine gets old enough to need it, that's the route I'm going. It's about 2 grand for 38 foot RV, so a TC should be very reasonably priced. They even go about 2 inches over the roof, like a lip, so there are literally no seams. Why don't manufacturers do that in the first place???
  • theoldwizard1's avatar
    theoldwizard1
    Explorer II
    Jun 15, 2019
    I am not an expert but ...

    My research says TPO is more durable, especially if you the commercial grade 60 mil. The big difference in between EPDM and TPO is that all seems on TPO are "heat welded" using a special high temp hot air gun. Very little, if any caulk is required.

    Watch some of these video RV Roof Install The also RAISE all roof penetrations on "curbs" and then install and weld factor made curbing resulting in much better leak resistance.

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