rubber roof

[blay]

inspecting my roof I found a spot where it looks like they started to cut a hole for a vent changed their mind about the vent and just covered it with roofing material . My question is what can I repair it with? I have a patch kit and eternabond tape

 

[JRTJH]

We had the same question yesterday. Here's the thread:

http://www.keystonerv.org/forums/showthread.php?t=18177&highlight=eternabond