The EPDM (I think it is EPDM) roof on my 2004 Outfitter TC is coming unglued from whatever is underneath it. I see several areas that are lifting up. None are raised more than 1/4" but they show up....
the roof on my 1997 31' 10" 5th wheel rv trailer has looked like that in spots since new.
I do a twice a year roof check for blisters or tears or holes in the membrane....sealant cracks...cracked or broken roof jacks and other fixtures. Just keep a eye on it but I sure wouldn't add any more holes the roof for more places for water intrusion.