I’d start by inspecting where the awnings attach. Specifically the larger one. It’s coming from up top. And if the roof is solid then next area to look at is where awnings attach
This is a 22 year old motorhome. I’ve verified all the caulking at the roof and seam at the wall. Then brought it to a RV repair center, they checked everything and found no issues. I can’t seem to figure out where the water is coming from. This area is soft. When I open the compartment (arrow), the wood behind the hinge is wet.
Is it bubling or rippling on the fiberglass or is the wood just wet in the compartment
That water is either coming from the roof or the side of the slideout has a hole or something
Is there something maybe with the wheel well?
If you already checked and redid the roof seams, next stop is the gutter and slide awning attachments. Anywhere there’s any hardware drilled into the wall, there’s an opportunity for water intrusion.
water does climb when it gets soaked into the wood so the water is not always going to come from above.
Source: Water Issue


