Bought a Sun Lite 6 foot slide in pop up last fall. I think its about a 1997 but I could be mistaken. How does one know what type of roof they have? I want to reseal it but not sure if it is TPO or EDPM. I am replacing the roof vent since it is broken and they had a very small water leak around that vent which I will repair but when done, I want to reseal the entire roof. I have heard horror stories if one uses the wrong product on the wrong roof material. I hope its a EPDM which leaves me more choices for a sealant and I can use Eternabond tape if ever needed.