leak over cab Window?????

Take this for what its worth. I bought my 'C' new. They required several days to get it ready to roll. One of the things that they showed me was the marker lights on the cabover. They had removed the chrome covers and were in the process of caulking around the lights. They explained to me that when they are built in the factory, they install the trim rings with high power screwdrivers and sometimes crack the underlying fiberglass that gets covered up by the trim rings. Mine was OK.
Might be worth a look.

DrewE wrote:
...Gutter runoff beyond the ability of the weep holes to weep it out is a possibility. It sounds like not the best thought out design there.

X2
I was experiencing a leak in the same area and really could not figure out from where and it didn't seem to be a consistent leak.

It took being inside my coach during a real heavy rainstorm and actually seeing where it was coming from. I went outside and that gutter was funneling a ton of water right down the window.

Gutter run off right above the window in heavy rain and the window weep holes can not handle it and it comes inside the RV.

This is accentuated even more if the RV is not level and ever so 'slightly' tipped to one side.

Even the slightest tip of MH to one side sends even more water off the gutter down into the weep holes from that side window and right into the RV.

When the rain let up in between storms I ran the tire on that side up on just one leveler block. Second storm hit and no water intrusion.

If I know a rain storm pattern is coming thru and I am parked in a CG I will put one leveler block under both of the front tires to tip the whole MH to the back......that way the water runs off there instead of inside my cabover windows. And it really only takes a 'very little' off level to achieve this. You don't even notice it inside.

I suspect that many of RV windows have been replaced unnecessarily when it was only the gutter run off in a heavy rain coming in from the weep holes.

I even had this happen in one of the big windows in the bedroom. I was sure that window had to be replaced. Until I looked during a storm and sure enough, when I went outside to look, it was coming in from the weep holes from excessive roof run off on that side. Again lifted that side a bit and it stopped.

The inner flange is not intended to have a watertight seal to the outer part of the window. It is there merely to clamp it in place, similar in concept to the clamps underneath a top-mount kitchen sink. The seal is around the outer flange of the window and between that piece and the glass, etc.

Gutter runoff beyond the ability of the weep holes to weep it out is a possibility. It sounds like not the best thought out design there.

Check the marker light seals. The leak could be there also.