Hi APG,
As Gene said, the Sunline rubber roof can be wavy and that is normal.
Also heads up, the roof is not a direct walk on roof. You can go right through it if you step in the wrong location. To service items on the roof, you get a trap, canvas etc to put down on the roof to protect from abrasion and then using 3/8" to 3/4" small plywood pieces place them over the rafters (on 16" centers) to spread the load out and then you can climb on.
I use 2 ft x 4 ft pieces. Big enough to span the roof trusses and light enough to haul up and down. Depending on what I am doing, I use 2 or 3 of them.
For sure, check all the caulking joints, every one of them. Any tiny hair line split to a wide split needs to be fixed. This post may be helpful for you.
http://www.sunlineclub.com/forums/f7...1-a-11508.html
Congrats on your Sunny!!
John
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Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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