2017 Minnie Winnie Roof Delamination: Repair or Replace?

[clotus]

I’m looking for some advice on how best to handle a roof issue on my 2017 Winnebago Minnie Winnie 31K.

The roof is a flat, laminate-style roof with a Filon/fiberglass top layer. My understanding is that the roof gets much of its strength from the various layers being bonded together.

I have several areas where the top layer has delaminated and bubbled up. I have no indications of any water leaks inside the RV, and the roof still feels solid when walking on it. The bubbled areas will press down when pushed, but the structure underneath still feels firm.

I’m trying to determine the most reasonable approach at this point and would appreciate your opinion:

• If there are no leaks and the roof remains structurally solid, is this something you would simply monitor for now?
• Would you recommend trying to repair the individual bubbled areas by injecting adhesive underneath the Filon and bonding it back down?
• Or does this type of delamination generally indicate that a complete roof replacement is the better long-term solution?

I don’t want to replace an otherwise functional roof unnecessarily, but I also don’t want to ignore something that could eventually become a much larger problem.

I'm getting some pretty expensive quotes in the $10,000 to $20,000 for full roof replace (including RV Armor). I am asking for the high-end estimates as the total cost won't be known until the filon is removed. I am in So-Cal if anyone has any recommendations for shop to handle too!

Any advice would be greatly appreciated.

 

[klook]

Mine is loose all over. It was known issue that they would separate from the channel on the side and blow off! Check out the AZexpert on youtube. All the penetrations hold it down as well. Vents, antenna's, AC units etc. I just removed the dish and am going to remove the tv antenna as well. I am not worried about it flying off so long as I keep the edges fastened down. Mine had came loose sometime in the past as I can see the repair effort. Even the rubber membrane roofs come loose sometimes.

 

[bigbAZ]

Seem Winnebago had delamination issues on 2013-2018 models. As mentioned, James has lots of videos on Winnebago roofs. While the side channel securement is the most common issue, your delamination is a separate issue and James has at least one video that I have watched on that issue.

Personally if they get worse I would drill and inject some adhesive, weight it down till dry then put pieces of Eternabond over the drilled holes.

 

[Tim.D]

Not sure if the 2017 applies but mine is a 2025 and has a 10yr warranty on the roof. You may want to check with winnebago to see if yours has that same 10yr warranty.

 

[clotus]

unfortunately the warrant period just ended as it went into service beginning of 2016 as a 2017 model. Not sure they would warranty it either, they would likely say its cosmetic only, but I am a but anxious about roof leaks/failures especially with a laminate roof.

 

[RayIN]

unfortunately the warrant period just ended as it went into service beginning of 2016 as a 2017 model. Not sure they would warranty it either, they would likely say its cosmetic only, but I am a but anxious about roof leaks/failures especially with a laminate roof.

Cotact the selling dealer tomorrow. IMO that is a material defect and covered by the 10yr warranty. All they can do is say no, but if they say yes, you're in like Flint.

 

[Oahudivers]

I’m looking for some advice on how best to handle a roof issue on my 2017 Winnebago Minnie Winnie 31K.

The roof is a flat, laminate-style roof with a Filon/fiberglass top layer. My understanding is that the roof gets much of its strength from the various layers being bonded together.

I have several areas where the top layer has delaminated and bubbled up. I have no indications of any water leaks inside the RV, and the roof still feels solid when walking on it. The bubbled areas will press down when pushed, but the structure underneath still feels firm.

I’m trying to determine the most reasonable approach at this point and would appreciate your opinion:

• If there are no leaks and the roof remains structurally solid, is this something you would simply monitor for now?
• Would you recommend trying to repair the individual bubbled areas by injecting adhesive underneath the Filon and bonding it back down?
• Or does this type of delamination generally indicate that a complete roof replacement is the better long-term solution?

I don’t want to replace an otherwise functional roof unnecessarily, but I also don’t want to ignore something that could eventually become a much larger problem.

I'm getting some pretty expensive quotes in the $10,000 to $20,000 for full roof replace (including RV Armor). I am asking for the high-end estimates as the total cost won't be known until the filon is removed. I am in So-Cal if anyone has any recommendations for shop to handle too!

Any advice would be greatly appreciated.

I bit the bullet and had AZ RV Roof in Prescott AZ apply Flex Armor. Not cheap, but lifetime transferable warranty. I was a little skeptical, but observed the entire 3 day process. Oustanding workmanship, plus they will do small "above and beyond" work as needed at no charge. Hit a number of heavy thunderstorms in Utah, nice not having to worry about a leaking roof.
2014 Winnebago Journey 40U.

 

[Morich]

In this case, I would certainly not be against asking about warenty but nothave a lot of hope for good results due to the way that warrenty is likely to be written! Small details that we might never catch can bite us!
One obvious out for the warrenty may be that it requires regular maintenance and checking that roof. If we can't come up with proof of that being done at a dealer shop, it is pretty simple for them to win that case without even going to court!

 

[TJFogelberg]

Watching thread so I have ideas on what to do if issues arise...we bought a 2017 31D in Oct 2016. We're out on the road anywhere from 40-120 days a year (mostly 40 now) and so far no issues. We store it inside all winter and also during the hottest months (mostly camp Spring and Fall). Service in Forest City has gone downhill in the last couple of years...I'll never go back there. Early on, they were great, fixed a few things after year 1 at no charge because they took responsibility for a bad transfer switch. On last visit (2025) they ripped us off on a simple slide repair and tried to upsell us on 2 things we didn't need at great cost. After fixing the dining room slide, they said the new controller required a new motor if we didn't want the light to flash. Slide works without it so we said no to the $800 new motor. They said there were hairline cracks in the roof sealant, a ghastly quote to fix something that doesn't exist. (I go up on the roof regularly and inspect and clean. There are no cracks!). Then said the couch slide needed adjustment, again ridiculous quote. It works fine and has for 10 years. I speculate they are under financial pressure...what a way to run a business.