Nose cap bulge

[scycle]

After our last trip on some rough highways, I noticed a small bulge at the bottom of the sidewall, right behind nose cap. passenger side. It's a very solid, like new condition 2012 318SAB and I see no signs water damage. Could it be just age and frame flexing?

[flybouy]

Posting a picture would help. While roads are terrible they won't cause delamination. With a 10 yr old camper and being next to the front cap I suspect water intrusion either from the cap or the pass thru door. From your description I would inspect the joint at the front cap to sidewall and use an appropriate caulk (not automotive silicone) to seal it.

[scycle]

A few pics, It's difficult to get a good angle but I can tap around and hear where it's not as solid. It shows up the most in the brown stripe about 8" from lower trim and 18" from nose cap. It is under cover and has been with us and previous owner and all the joints look good, is very well taken care of.

[bsmith0404]

Looks like delam. Doesn’t always take water intrusion to cause it. I’ve seen it happen many times on new trailers from heat. I know you said it’s covered, but does that part of the rv get exposed to sun while it’s under the covered storage?

[scycle]

Yes it gets late afternoon and evening sun. Thought about removing the lower trim and getting some adhesive up behind it.

[bsmith0404]

Typically they repair them by injecting at the sight, not coming in from a nearby access point. I’ve seen delam repairs “work” for the spot they repaired, but more times than not another will occur with in a few inches of the original. I don’t know if it’s because the area was already compromised or if the repair caused the new compromise. One thing I do know is they never get better on their own.