Go buy a roll of EternaBond tape. Comes in different sizes. Will seal that right up.
While winterizing my trailer for the winter I came across this puncture on the roof. No idea when it happened. There’s no damage at all to the inside that I can see. My question is what the best way to fix this hole? It’s that rubbery canvas material (common?) I’ll be running a space heater for the time being to ensure it dries out fully from the inside. Thanks