Holes in the slide top related to the gear box dripping oil
My TT is a 2018 model, I've noticed these bubbles above the slide roof several times but didn't take the time to really look at it. I concluded it was an slight oil drip from the cable driven, BAL Accu-Slide gear box. But, I mistakenly concluded it wasn't a real concern, otherwise the manufacturer wouldn't have built it that way. As usual, my mistake.
See four attached photos. It turns out that the oil, combined with the rubbing action of the two rubber seals that run the length of the top of the slide can (and did) wear a hole in the TPO roofing material. In the "oil drip areas" the TPO fabric feels much like bubble gum now.
After cleaning the area I discovered three holes in the TPO roofing material directly below where the gear box sets. The plywood below these holes looks yellow (like good wood) so this is likely a recent development. Otherwise the wood would be grey and oxidized from moisture contamination.
I'm looking for suggestions on how to seal this. I guess I could:
1. Put some Eternabond tape on it, but I'm concerned about the bulge.
2. Slit the TPO fabric to allow the fabric to lay flatter and then apply the Eternabond tape.
3. Some other suggestion.
The first 2 photos are above the Kitchen slide. It's not as bad as the recliner side. The last 2 photos are the recliner side where the holes show up.
@Dflower - After reading this post I decided I'd better take a closer look at my slide tops and I'm glad I did. Thanks for making the post.
You might also want to read this thread posted about 3 weeks ago "Bubble in the Slide Roof":
Dustin and Doris
2018 Crossroads, Sunset Trail 33CK,
38', 7600 lbs empty, 8300 lbs loaded.
2016 Tundra: 5.7L with towing package with added "Roadmaster Active Suspension"