Sealing question for sides of Cruise Lite (aluminum sides)

[larry2c]

Our Cruise Lite is approaching 1 year old to us and about 18 months since it was built. The dealer was in Riverside CA and we live in San Diego so the trailer has spent its life in the land of the sun (I will defer to our Arizona neighbors, they beat us out on hot sun). Looking at the "seams" where the front & back of the TT join the sides, the butyl (or whatever they seal it with) is pretty dry.

Should I be looking at doing something with these areas? If so, what? Should these seams have Geocel/Proflex on them? Pictures of the front sesams are for reference.

All suggestions are welcomed!

[Splitshaft]

That stuff looks like Gray Putty Tape to me.

Putty tape is a heavy gray flexible mastic. Flexible grey putty tape is used for waterproofing overlapping metal seams.

I am not sure anything needs to be done unless the seams are leaking. It may appear dry where it is exposed, yet might be perfectly fine where it needs to fill gaps and voids in overlapping metal seams. The only way to replace it is to remove the vinyl insert from the outside corner seam and all the screws every inch or two, scape it all off overlapping seams, the outside corner seam strip and reapply new putty tape to include the 100's of screws. It can be done and it is a lot of work.

[larry2c]

Thanks for the feedback - and not doing something is one of my favorite fixes!

We have no leakage but we live in southern California so not much rain to test it. In the future we plan on traveling to far away places where rain is more common so I'll be watching for leaks. I asked about sealing the exposed edge with Geocell because there are a few places where that has been done but not on any of the big vertical edges.