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Old 08-16-2018, 07:55 AM   #1
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Meridian 36 roof leak

My new to me 2014 coach has a major roof leak. During a Florida squall water drips down from above the front windshield onto the dash/defroster ducts. The water is coming from behind the cabinet above the driverís head, traveling across a body lip, and dropping down from the center of the forward headliner panel. Water covers the dashboard.

Local LaMesa dealer cannot find the leak....anybody have a similar experience?
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Old 08-16-2018, 09:04 AM   #2
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I had a similar leak and the water was entering thru the joint between the front cap and the roof, in the area of the radius curve. Solved it by re-sealing the seam from end to end with Eternabond Tape.

The water entered there and follows along internal structure to above the headliner panel where it drips thru.

It is also possible that water is entering thru one of your running lights in the front cap.
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Old 08-17-2018, 09:45 AM   #3
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Please add your coach model/year to your signature. It makes it easier for people to help you if the know what you have.

I would start looking at the clearance lights mounted on the roof. Sealant and gaskets can dry up and the leaks begin. Doesn't take too big a leak to get lots of water in.
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Old 08-19-2018, 01:46 PM   #4
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Quote:
Originally Posted by Jeff Rogers View Post
My new to me 2014 coach has a major roof leak. During a Florida squall water drips down from above the front windshield onto the dash/defroster ducts. The water is coming from behind the cabinet above the driverís head, traveling across a body lip, and dropping down from the center of the forward headliner panel. Water covers the dashboard.

Local LaMesa dealer cannot find the leak....anybody have a similar experience?

I had a very large gap between the front cap and the main roof. I stuffed it with backer rod and sealed it with helicopter tape. Also, check behind the rubber trim strip on the windshield edge. This can also be a problem area. Use windshield caulk or weatherproof double-face tape behind it to seal the area at the top of the windshield.



Good video. I suggest that you take your dash panels off and make certain water didn't get into anything that might be a RV gremlin sometime down the road.


Happy trails,
Rick
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Old 08-21-2018, 11:17 PM   #5
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Having chased a similar leak coming from behind the cabinet over the driver side window and falling on the trans shift touch pad, I feel your pain. Solved mine, but could not tell you which area solved it.

Agree with the folks pointing you to front running lights and front cap to body joint. I resealed all those, plus the sat ant hold downs, sat ant roof penetration, radio ant penetration.

Good Luck!

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