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05-15-2015, 09:11 AM
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#1
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Oct 2011
Location: Everywhere USA
Posts: 152
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Roof leak... suggestions to find source?
I have a roof leak and cannot find the source.
With a heavy rain or when there is a driving wind, water drips from the top frame of the driver-side cockpit window and also drips (but more slowly) from above the cockpit fan on the driver side. I reapplied dicor on the roof, applied lexel caulk around the window and the side mirror, and resealed the marker lights.
Any suggestions on where else to check/seal?
__________________
Consuelo
2004 National Dolphin LX 6342 on W22
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05-15-2015, 09:24 AM
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#2
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Senior Member
Join Date: Apr 2010
Posts: 1,295
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Maybe antenna wires going through the roof. I had a similar leak but it turned out to be the marker lights. I had mine pressurized at a local dealer but it did not find the leak.
My front air conditioner had also come loose but that drip came from inside the air conditioner.
Where is the bat wing antennae in relation to the leak?
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Pcurt
2007 Fleetwood Bounder 38V
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05-15-2015, 09:37 AM
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#3
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Senior Member
National RV Owners Club Solo Rvers Club Freightliner Owners Club
Join Date: Mar 2011
Location: FT for 6 years, NW in the summer, S in winter.
Posts: 1,173
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Re-seal any antenna mounts and "through-the-roof" leads anywhere on the front end cap. Re-check the front end cap to roof joint. Rook
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When you get a chance to dance, or sit this one out......I hope you DANCE!
98 National Tradewinds 7370, powered by a 3126B 300HP CAT Turbo, Freightliner XC chassis
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05-15-2015, 11:12 AM
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#4
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Senior Member
Workhorse Chassis Owner
Join Date: May 2005
Posts: 672
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If you have the make-believe air horn check the sealant around the mounts. I had a similar leak as yours and it was the air-horn mount.
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Fred Kennerson
2003 Dolphin L/X 6320
Yucaipa, Ca
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05-15-2015, 11:17 AM
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#5
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Senior Member
Country Coach Owners Club Oklahoma Boomers Club
Join Date: Jan 2015
Location: Woodward, OK
Posts: 1,147
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Find a dealer with this system and you will find every leak in your RV. SealTech Manufacturing USA | Industry Standard for RV Leak Detection
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Jay Devereaux
1992 Country Coach Magna #4926 "Maggie" 25' Stacker "The Toy Box"
Facebook | IRV2[SIGPIC][/SIGPIC]
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05-15-2015, 12:15 PM
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#6
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Senior Member
Monaco Owners Club
Join Date: Apr 2012
Posts: 260
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Ours was an after market satellite dish that the previous owner had installed. Never could get the thing sealed. Had it removed and the roof patched. No more leaks!
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Tom and Barbara in Delaware, USAF Retired Aircraft Crew Chief
2001 Monaco Dynasty Regent DSO FD - 40 ft DP with Tag Axle - Towing a 2003 Jeep Wrangler
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05-18-2015, 06:24 PM
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#7
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Oct 2011
Location: Everywhere USA
Posts: 152
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Quote:
Originally Posted by pcurt23
Maybe antenna wires going through the roof. I had a similar leak but it turned out to be the marker lights. I had mine pressurized at a local dealer but it did not find the leak.
My front air conditioner had also come loose but that drip came from inside the air conditioner.
Where is the bat wing antennae in relation to the leak?
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The leak is dripping out the driver window. The tv antenna is front curbside, but water travels so I'm not ruling it out. But I've already resealed all.seams and roof penetrations but the pesky leak persists.
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Consuelo
2004 National Dolphin LX 6342 on W22
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05-19-2015, 12:55 PM
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#8
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Oct 2011
Location: Everywhere USA
Posts: 152
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After resealing the window, the windscreen, the side mirror, the snap-screws for the windshield shade, etc. etc. the pesky leak was still not resolved. I went back up on the roof this morning (after applying more DICOR to just about everything a couple weeks ago) and took another look around. And... I found a crack in the Dicor on the front mount for the air horn assembly. This crack was not visible before, or maybe I missed it, but in any event I am hopeful I finally found the source of the leak. See photo below.
I scraped away some of the old Dicor in that area and reapplied VERY liberally. Now waiting for another heavy rain to verify - shouldn't be long, this time of year in Livingston TX is rain, rain, rain!
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Consuelo
2004 National Dolphin LX 6342 on W22
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05-19-2015, 09:07 PM
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#9
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Senior Member
Workhorse Chassis Owner
Join Date: May 2005
Posts: 672
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Like I said in post #4, that is what happen to me. Glad you found it.
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Fred Kennerson
2003 Dolphin L/X 6320
Yucaipa, Ca
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05-21-2015, 06:16 AM
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#11
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Oct 2011
Location: Everywhere USA
Posts: 152
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Quote:
Originally Posted by Doggy Daddy
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I think I resolved... waiting for a heavy rain. I have about 3 hours into the roof work... wonder how long the prep would take before applying rubber roof coating? I would imagine a lot longer than that to remove all the dicor, etc. Will see what happens next.
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Consuelo
2004 National Dolphin LX 6342 on W22
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05-22-2015, 03:50 AM
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#12
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Senior Member
Join Date: Nov 2010
Posts: 346
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roof leak
I feel your pain! (as one of our presidents said). I had a leak in the in the front, bad leak, of course any leak is bad. It stained the ceiling and I had to replace a section, what a job. the leak was where three cables came through the roof after I installed a Winegard Dish traveler satelite antenna. Caulked the devil out of it, Don't want to have to replace the ceiling again!
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Sam
2001 Islander
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09-25-2015, 01:46 PM
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#13
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Senior Member
Join Date: Feb 2011
Posts: 337
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The last leak I discovered was around the side mirrors. Sealed, so far so good!
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09-25-2015, 08:50 PM
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#14
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Senior Member
Join Date: Sep 2012
Location: Yakima, WA
Posts: 546
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Quote:
Originally Posted by Doggy Daddy
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National RV Dolphin has full fiberglass roof which curves over the sides (no side joints up there). No plastic, no rubber, no joints (except the very front cap and very rear cap joints) nothing to seal (or deteriorate) except the few places something is mounted.
We can even wax it if we're that off-kilter I suppose........
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GySgt USMC (Ret) '79~'99
2005 National RV Dolphin Limited 5342
Workhorse W-22
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