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12-16-2015, 06:30 AM
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#1
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3 Rivet Member
2021 27' International
Fredericksburg
, Texas
Join Date: Oct 2015
Posts: 239
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Need advise on fixing a leak in the roof area
Need advise on fixing a leak on our 2011 22FB. We have a minor drip at the corner of our vent when we get a hard rain. The vent cap that opens and retracts appears to have a good seal. There is a minor hairline crack on the exterior vent frame that sets in the roof. The external area around the vent frame appears to to good as well as the closest rivets.
Should I remove the manufactures sealing material and apply a coat of new sealing material where the manufacture had apply and also over the hair line crack?
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12-16-2015, 06:40 AM
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#2
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1987 Avion 34W owner
Vintage Kin Owner
Good Ol'
, USA
Join Date: Mar 2014
Posts: 2,090
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My advice would be to clean off all of that prviously-applied sealant and cover those seams with EternaBond AlumiBond tape. I would use the 4" tape. While you're at it, do the same around all of the vents and anything coming through the roof skin. Once you finish that, I seriously doubt that you'll ever need to worry about leaking seams on the roof.
Here is a link to pictures I uploaded from the work I did on the roof of our Avion:
2014 Roof project - Photo Gallery
__________________
I this great country!!!!
1987 Avion 34W
1995 Ford F250 7.3L PowerStroke
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12-16-2015, 09:17 AM
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#3
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Rivet Master
2008 25' Classic
Full Time
, Texas
Join Date: Nov 2012
Posts: 4,309
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Quote:
Originally Posted by TexasVine
The vent cap that opens and retracts appears to have a good seal. There is a minor hairline crack on the exterior vent frame that sets in the roof. The external area around the vent frame appears to to good as well as the closest rivets.
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Is that crack in the plastic vertical part of the vent frame? If so you may want to drill a tiny hole at the end of the crack to prevent it from expanding and then seal with a suitable caulk or a strip of that sealing tape.
Kelvin
__________________
2008 Classic 25fb "Silver Mistress"
2015 Ram 2500 6.7L Cummins. Crew Cab, 4x4, Silver
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12-16-2015, 10:37 PM
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#4
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Rivet Master
1987 32' Excella
Nepean
, Ontario
Join Date: Mar 2006
Posts: 1,414
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I'm not sure if it would work in this case, but you may want to try some Capt. Tolley's Creeping Crack Cure - It is available through Amazon Amazon.com: creeping crack cure
__________________
VE3JDZ
AIR 12148
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel
WBCCI 8080
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12-17-2015, 12:40 PM
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#5
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Rivet Master
Currently Looking...
Taos
, New Mexico
Join Date: Oct 2014
Posts: 566
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The world is good when there is a product to repair creeping cracks - especially if it really works!
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12-17-2015, 02:53 PM
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#6
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3 Rivet Member
2008 27' Safari FB SE
Frederickburg
, Texas
Join Date: Apr 2008
Posts: 195
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I would love to know if you try the above products Capt. Tolley's creeping crack cure or the eternabond alumibond tape. I have a mystery leak (fortunately small) in my roof and have wondered how to find and repair it. Thanks everyone!
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12-17-2015, 03:29 PM
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#7
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1987 Avion 34W owner
Vintage Kin Owner
Good Ol'
, USA
Join Date: Mar 2014
Posts: 2,090
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Looking closely at where you pointed to the hairline crack, I would definitely us the 4" Eternabond AlumiBond tape. Cut a strip for each side of that vent, make each strip about 4" longer than the vent edge that contacts the roof. Lay it so it covers the seam that contacts the roof, and make it cover the vertical edge of the vent as well. You can trim the ends of each strip to allow you wrap the tape around each corner of the vertical edges of the vent. I found that a pair of tin snips trimmed the Eternabond tape nicely.
PaulnGina
1987 Avion 34W
1995 Ford F250 7.3L PowerStroke
Blessed and highly favored
__________________
I this great country!!!!
1987 Avion 34W
1995 Ford F250 7.3L PowerStroke
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12-17-2015, 04:18 PM
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#8
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Rivet Master
2000 25' Safari
Davidson County
, NC Highlands County, FL
Join Date: Aug 2006
Posts: 4,493
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I would remove the screws holding the fan in place, remove the fan, clean off all the caulk from both the fan frame and roof surface, to make 100% sure it is cracked. Scratches look like cracks. If it is cracked, since the fan is fairly new, I would call the fan manufacturer and ask for a replacement fan frame.
If you patch it with Eternabond, that stuff is a real PITA to remove next time it leaks. It will leak again, at least mine did!
__________________
Alan
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
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12-17-2015, 05:30 PM
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#9
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2 Rivet Member
1985 25' Sovereign
Olympia
, Washington
Join Date: Dec 2005
Posts: 52
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I had a similar leak problem around our Fantastic Vent ast year. Leak is now gone by (1) scraping away and smoothing the existing sealant with a plastic scraper (2) scrub down well with alcohol, (3) applying 4-inch EternaBond tape, and (4) sheltered all with a MaxxairII vent cover. Jim
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12-17-2015, 07:50 PM
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#10
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Rivet Master
2002 30' Classic S/O
Fleming Island
, Florida
Join Date: Nov 2013
Posts: 4,673
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That's what I did
Quote:
Originally Posted by A W Warn
I would remove the screws holding the fan in place, remove the fan, clean off all the caulk from both the fan frame and roof surface, to make 100% sure it is cracked. Scratches look like cracks. If it is cracked, since the fan is fairly new, I would call the fan manufacturer and ask for a replacement fan frame.
If you patch it with Eternabond, that stuff is a real PITA to remove next time it leaks. It will leak again, at least mine did!
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The rear fan on my 25 leaked big time about 6 months after we bought it. It had been leaking for a while as there were stains on the walls and rusted screws. Someone had tried to fix it by smearing caulk over caulk. There were three or four different sealants on the fan when I removed it. Two problems - the original gasket was white foam and had compressed and hardened, and the thin sheet aluminum expands and contracts with heat and breaks any surface seal. I put some 1/8" x 1" aluminum bar behind the skin to stiffen the mount and used Sikaflex caulk instead of replacing the gasket. If you use caulk, Don't tighten the screws all the way at first. Tighten them just until you get good squeezeout all the way around and then let the sealant cure. After 24 hours or more, come back and tighten them some more. That way you will have a thicker bead of sealant between the fan and skin and it will be under more compression.
There was a lot more flexing near the front fan due to the TV antenna. After mounting the fan I sprayed some "Minimal Expanding Great Stuff" foam between the inner and outer skins. The area is now very rigid and should keep the skin from flexing and breaking the seal.
Al
__________________
“You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO WBCCI 1322
2002 Classic 30 Slideout -S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
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12-17-2015, 11:04 PM
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#11
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3 Rivet Member
1971 31' Sovereign
Temple
, Texas
Join Date: Aug 2015
Posts: 125
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leaking vent fan
I have built 6 teardrop style camping trailers from scratch. All of them had Fantastic vent fans installed. I used butyl tape between the fan frame and the aluminum skinned roof instead of the gasket that came with the fan. None of the campers have ever experienced a leak related to the fan installation. I certainly don't consider myself to be an AS expert, but this stuff seems to work well.
VTS sells some good quality tape. Butyl RV Putty Tape
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12-18-2015, 08:07 AM
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#12
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4 Rivet Member
2011 30' Classic
2007 25' International CCD
1993 32' Excella
Largo
, Florida
Join Date: Nov 2013
Posts: 355
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Another vote for butyl tape
>>ron<<
__________________
2015 GMC Denali 2500, 4x4, Duramax diesel, Topper, Pro Pride 3 P, Sendel 16" with Michelin LTs, one Yellow Labrador Retriever (AS security)
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12-18-2015, 08:56 AM
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#13
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Rivet Master
2000 25' Safari
Davidson County
, NC Highlands County, FL
Join Date: Aug 2006
Posts: 4,493
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Quote:
Originally Posted by TxDave
snip>>>>I used butyl tape between the fan frame and the aluminum skinned roof instead of the gasket that came with the fan. None of the campers have ever experienced a leak related to the fan installation<<<<<snip
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^^^^
I agree!
The foam gasket should not be used.
Both of the fans in my 2000 Safari were leaking when I purchased it in 2010. After letting the butyl ooze out for a few minutes I trimmed it, then caulked with Dicor on the screw heads and fan edges. No leaks since then!
__________________
Alan
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
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12-18-2015, 07:34 PM
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#14
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3 Rivet Member
2005 25' International CCD
Glendale
, California
Join Date: Sep 2008
Posts: 224
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leak on fantastic fan
look at this thread http://www.airforums.com/forums/f455...cor-96561.html I have the eternabond for 3 years now you cant beat it when you need to replace it who knows when , just use a blow dryer on it and pull it up watch the video.
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12-18-2015, 07:38 PM
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#15
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3 Rivet Member
2005 25' International CCD
Glendale
, California
Join Date: Sep 2008
Posts: 224
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eternabond on fantastic fans
I have photos of my trailer with the new eternabond on the fans. you can get it a granger. http://www.airforums.com/forums/f455...cor-96561.html
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12-19-2015, 06:08 PM
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#16
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Rivet Master
1987 32' Excella
Nepean
, Ontario
Join Date: Mar 2006
Posts: 1,414
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I used to have a 1994 AS LY motorhome (diesel pusher) that suffered with roof leaks. I used Eternabond to seal the roof seams (and it did a good job of stopping the leaks). However, I'm not so sure that just using a hair dryer would allow the tape to be released. It chemically welds the tape to the roof. On the motorhome, the roof was fiberglass - the same type as is used on sailboat decks - the walls were fiberglass laminate and the quarter round where the roof and the walls met was aluminum. The Eternabond welded itself to the aluminum and could never be pried up.
__________________
VE3JDZ
AIR 12148
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel
WBCCI 8080
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12-20-2015, 06:10 AM
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#17
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3 Rivet Member
2005 25' International CCD
Glendale
, California
Join Date: Sep 2008
Posts: 224
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removal of eternabond
Quote:
Originally Posted by blkmagikca
I used to have a 1994 AS LY motorhome (diesel pusher) that suffered with roof leaks. I used Eternabond to seal the roof seams (and it did a good job of stopping the leaks). However, I'm not so sure that just using a hair dryer would allow the tape to be released. It chemically welds the tape to the roof. On the motorhome, the roof was fiberglass - the same type as is used on sailboat decks - the walls were fiberglass laminate and the quarter round where the roof and the walls met was aluminum. The Eternabond welded itself to the aluminum and could never be pried up.
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here is a link https://www.eternabond.com/articles.asp?id=165
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12-20-2015, 06:16 AM
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#18
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3 Rivet Member
2005 25' International CCD
Glendale
, California
Join Date: Sep 2008
Posts: 224
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removal of eternabond
I did not say it would be easy what is about fixing a leak on a trailer here is u tube video .
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12-20-2015, 07:21 AM
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#19
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3 Rivet Member
1979 31' Sovereign
Black Diamond
, Washington
Join Date: Oct 2015
Posts: 193
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Quote:
Originally Posted by silverbacksurfer
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Do you see any drawbacks to using eterabond on the ZipDee awning attachment to the AS? They have a alumibond product as well - any experience with this? Thanks for your time.
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12-20-2015, 07:37 AM
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#20
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1987 Avion 34W owner
Vintage Kin Owner
Good Ol'
, USA
Join Date: Mar 2014
Posts: 2,090
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Quote:
Originally Posted by Pygmypoacher
Do you see any drawbacks to using eterabond on the ZipDee awning attachment to the AS? They have a alumibond product as well - any experience with this? Thanks for your time.
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Can you describe more of what you mean? If you are meaning the upper and lower mounting brackets, I would suggest removing the brackets one at a time, clean the back surface of the bracket and the skin of the trailer, apply a layer of ParBond http://www.vintagetrailersupply.com/...-p/VTS-256.htm then reattach the bracket to the trailer. I can't imagine a good way of using the Alumibond to seal those brackets. However, I could see using the narrower Alumibond tape to seal the upper edge of the awning attachment strip on the trailer. And, I used the Alumibond to seal the seams on top of our Avion, and around the air and plumbing vents. http://www.airforums.com/photos/brow...c=3530&userid=
__________________
I this great country!!!!
1987 Avion 34W
1995 Ford F250 7.3L PowerStroke
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