Water over membrane under trailer

[greenguy]

Finally upgraded from pop-up to TT. 2006 Zinger quad bunk. Found water soaked up in the insulation over the membrane on the underside of TT. Mostly in all 4 corners and middle front. Middle of camper dry. Found some interior damage in front storage compartment. Caulked hole on roof over that damage. Why would water be in back corners too. Why is middle of camper dry? Just looking for ideas. Thanks

[mark5w]

It could be from water sloshing back when you were on the road or when they delivered it to the dealer. Is there water in membrane now?? If so you will have to get rid of it and check around the perimeter to see if it is sealed. I heard others sealed it with Gorilla tape and it held really well. You got to find the source of the leak. Check gasket around the edge of the storage compartments.
Good luck.

[greenguy]

I pulled out all of the insulation that was wet. Still looking for the water source. I plan on letting it dry for a while. Then Gorilla tape sounds like a good idea.

[Dayle1]

Which membrane? Lower one between the main frame rails or upper one on top of the frame that is the full camper width?

[greenguy]

Above frame rails and below wooden floor joists

[Dayle1]

Originally Posted by greenguy

Above frame rails and below wooden floor joists

I am totally without meaningful ideas. All four conners and center front, can't see any rain leak or road spray causing that kind of pattern, let alone a plumbing leak. Maybe a super fine plumbing leak or road spray that created high humidity condition under the floor and the places still wet have the least ventilation. But that is a stretch.

[greenguy]

Thanks for the ideas. Still looking for cause.