Thank you both for your input. My only concern is what is under the "slit" that I make. It's difficult to describe. It feels to me, like there is an 18 -24 inch piece of something (thin wood, aluminum flashing ?) that is under the membrane. It is definitely a piece of "something". When I press down, the "panel" goes down as a whole and definitely hits something solid. Whether it's a roof truss, or another layer of paneling of some sort, I am not sure.
I am concerned that when I get it open, I may not have "correct/adequate surfaces to glue, and that I may need to use mechanical fasteners anyway.
A couple of more things. What type of contact cement would you recommend ? And lastly, I've heard of, but never used Eternabond. I went to their web site, and it appears that there are multiple products to choose from. Any recommendations on which one(s) to use ?
Thanks.
http://www.eternabond.com/RV-Leak-Repair-Products-s/22.htm
