Rain Leak at co-pilot seat
My '07 Fleetwood Excursion has developed a roof leak that results in my co-pilot after it rains, getting showered down when I brake and the nose of the rig drops down. I can actually hear water sloshing around up in the ceiling on the front passenger side of the rig. After a heavy rain there is a lot of water up there, probably a quart or two.
The water actually comes out of a hole in the ceiling in the small speaker compartment above her seat. There are many wire runs up there so I can not really tell beyond that where the leak has originated. I have been able to put together the following observations about this leak:
1) I don't think the source of the leak is the door awning or porch light since I observe water above this level on the inside of the coach.
2) I don't think the leak could be associated with the main awning mounting lag bolts, (at least not the forward ones) because when I removed them the other day after a good rain, a large amount of water came out. The rig was parked nose low. I don't see how the water level could have filled above the level of those two bolt holes if they were the source of water entry. In the attached drawing of my rigs construction, I see that there are several extrusions used in the upper roof radius area and I believe the awning is lag bolted through the "sidewall upper extrusion" where I have added my annotation. Somehow water must be getting into that extrusion and gets trapped in there. For the most part that extrusion should be water tight except where it is penetrated by fasteners (awning lag bolts etc) or by wire and cable runs.
3) I have not been able to find water stains on the ceiling anywhere inside the coach and there is no sign of water ingress near the flush mounted ceiling lights or the TV elevator/rotator crank.
4) I have replaced the front AC unit gasket. I have removed and replaced all of the Dicor sealant up on the roof. I have ensured the rubber boot on the TV antenna is sealed.
The volume of water that seems to be collecting in that area after a good rain is so large that I have a hard time believing that it could be coming from some distant place such the TV antenna base or one of the AC units and not see some evidence inside the coach near those areas.
Looking for help on this one.
Thanks in advance
07 Fleetwood Excursion