On a sunny day when looking down the side of the Hi Lo it looks "rippled" is this what is meant by delamination? Any cure for it?

Post a picture.

Will try but need a sunny day first lol it's been raining so much the last few weeks we have a swamp out back!

It sounds like it. Here in AZ it is very common due to the >110F temps. Very common with older RV's.

Rick

If you truly have delamination than the only proper repair is to take it to JR as they have the proper lamination equipment.

Ugh. Water causes it right? What is the actual process tho? Is the siding separating from the wall causing the rippling? Is it common in older RV's because of the type of material used? How new would it need to be to avoid that? (Thinking for future purchase perhaps)

Kathy

What does that process entail and is it expensive? JR is a distance from us any other type of place able to do that?

Kathy

The classic is made of three layers. !/8th paneling 1/2 inch foam board insulation then the fiberglass skin. You can repair it yourself. We used heavy duty liquid nails between the layers. Bondo was applied on the inner skin/fiberglass. No guarantees that all the layers will bond together if you diy. This happens because the glue dries out or it could be from a leaky window. The water runs down the wall and delaminates. You may decide it isn't that bad and just live with it.

This happened to us back in 2010. I called Filon (exterior panel manufacture) they told me it happened due to improper glue application or moisture between the Filon panel and the foam insulation panel. I called Tom at Hi-Lo, he said the Filon had to be removed cleaned up and re-laminated to the insulation board. Greg, now deceased did the job at the old Hi-Lo plant. It has remained tight ever since.