Roof leak getting worse.

[rjsurfer]

Over the last few years I'm have been struggling with what I thought was a leaky kitchen window. Its an on again off again minor leak that would drip down on the inside wall.

I resealed the window many times and enlarged the weep holes etc and still no luck.

I finally took the inside frame of the window off and carefully inspected the area during a rather heavy rainstorm and noticed water slowly dripping from the inside of the wall's Luan surface. The wall is a fiberglass/foam/Luan compressed bonded design with the fiberglass obviously on the outside and the Luan facing inside. It appears the water is wicking down from above the inside window frame eliminating a leaky frame as the culprit. Water has to be leaking past the the roof edge seal but how is it getting to the inside Luan surface?

I went up on the ladder in the rain to check the roof out and how the water was flowing down the drip rail and everything looked OK. I even went so far as to peel off the vinyl strip that covers the screws holding the drip rail/roof seal assembly and didn't notice anything out of the ordinary The roof material is in good shape and there are no through roof fittings within 6' from where the leak appears.

Has anyone else had an issue in this area?

And, is that drip rail edge seal assembly one piece? I'm wondering if there is a seam that has to be caulked.

On my next trip up there when things dry out I will be pulling those screws out and pushing caulk into their holes...

Thanks

Ron W.

[path1]

Leaks can be hard to find.

[Snowman9000]

A picture of your rig would help. But, I had a fiver that had a leak at one or both of the big lag bolts used on one end of the awning mount at the upper sidewall. From there the water dripped down onto the kitchen window framing, and eventually could be seen dribbling down onto the kitchen counter. When I pulled the window to check things out, the upper part of the framed opening was rotted out. I ended up removing kitchen cabinets, some paneling, replacing a bit of wood, and putting it back together. Including, sealing the lag bolts. The lag bolting of the awnings is even worse than most bad RV sealing practices. Many makers just screw in the bolts with no caulking whatsoever.

Photo of mount and bolts that leaked:

[lots2seeinmyrv]

Take it and get the air pressure test. I think we paid about $135 to make sure no leaks.

[2oldman]

Trying to find a leak may be an exercise in futility. Get some Heng's rubber roof coating and coat everything where water has a chance of entering. Goes on like paint, much easier than caulk.

[GENECOP]

Air pressure test....read about it, you can probably rig a test up yourself....

[rjsurfer]

I agree, water travels but I checked the AC roof seal and pulled off every light and speaker looking for water intrusion and as I said there isn't ANY roof fitting within 6 feet and the ones further away I resealed them anyway even though they looked good.

Got to be related to roof edge seam.

Ron W.

[azrving]

I recently had a 1997 Jayco that was in excellent condition. It had been stored in a pole barn and used a couple times a year. It started leaking out of the center light fixture so I inspected every inch of the roof and everything looked fine. It ended up being the rubber boot around the antenna cable.

It looked ok but had relaxed enough over the years that it would let enough water by to cause a slow drip. The water would run across the top of the ceiling panel to the light fixture. So.....your leak may not be directly above the window area.