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Old 11-02-2018, 05:03 PM   #41
DCARLTON
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Actually a lot of this makes sense in my case. Facing a similar situation on my still under warranty unit with damage in the middle of the room with the floor now settling about 1 inch, there definitely is some sort of build issue. My service guy called it a 'bonded floor' with the typical construction of luan/foam/luan. He can identify water damage on the bottom, but your explanation makes sense in that the top of the floor shouldn't fail due to the wicking of water up through a non wicking material (foam). This would indicate at least to me that if the top layer is failing and the bottom layer is wet, gravity is responsible for getting the bottom section wet.

Mine went to service today, hope to hear from them soon.
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Old 11-02-2018, 05:42 PM   #42
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Good Luck, Danny.

I hope your dealer gets on top of the problem and does you a good job. Finding the cause of a water leak is sometimes extremely difficult, but with persistence, they'll find and hopefully repair it. Keep us posted on what they find and how things progress. Thanks for the update.
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Old 11-05-2018, 08:30 PM   #43
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I agree with ctbruce. Darco is a "standard across all brands" product. It's used on literally millions of RV wheelwells. If it were unsuitable for the purpose and if it had a high failure rate or caused this problem repeatedly, there would be significantly more reports of "rotten floors caused by Darco" than we have seen on this and other forums. There simply aren't that many reports of such a problem.

That's not to say yours isn't (or wasn't) caused by a hole(s) in the Darco, but rather, to say that it's not happening to other trailers in any quantity. If it was a "Darco problem" we'd see a lot more posts complaining of wet, soft, rotten floors because every wheelwell that Keystone produces is covered with Darco.

As Chip said, it's the "low hanging fruit" and easy to blame whether it's the actual cause or not. I would be extremely suspicious of anyone who blames a "leak on the side of a trailer floor" as being the "cause of floor rot in the center of the trailer.... Sort of like blaming "rainwater from an open window" for a wet spot on the carpet in the center of a house while the new puppy sleeps in a dog bed in that same room.
Then it's the substandard assembly, presuming draco is a good product. My guess, like my bedroom door, shower leaks from both sides on near the wall, back shade not lowering or raising, it's substandard assembly. The door hole was was clearly cut to large and the shoved it in without shims so the screen door won't catch the necessary latch, misses by 1/2. The shower is leaking from both corners where the metal should be sealed to the floor pan, so I'm guessing no sealant there. The shower walls aren't sticking to the bonding agent underneath so they obviously didn't clean either the wall or the shower wall when bonding the two together. The rear shade hasn't worked since day one, clearly a bad shade and the people assembling it didn't care and let it go. Two windows are missing screens and inthe first Idaho rain it was in I noticed a leak under a rear window. Now mind you this was a good 1/8 of an inch in 24 hours so I can understand why it had issues. This is only after 3 weekend camping trips and two payments. I'm not even talking about the add on products that have failed, just the shoddy workmanship building the trailer. If these folks are paid over minimum wage keystones is getting ripped off, as the work is horrendous. Clearly there is little to no QA in the factory and no pride in the workforce.

I like the layout of the trailer and the look, but this thing has more issues than national geographic and is only been on the road three months.

Shoot forgot about the AC. When it was installed they failed to put the foam sheet in correctly that separates the intake and exhaust. It's in there but there is a two inch gap at the top so the intake and exhaust aren't separated. Keystone, quality is job, last.
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Old 11-12-2018, 12:05 PM   #44
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Good Luck, Danny.

I hope your dealer gets on top of the problem and does you a good job. Finding the cause of a water leak is sometimes extremely difficult, but with persistence, they'll find and hopefully repair it. Keep us posted on what they find and how things progress. Thanks for the update.

So we took our last camping trip on October 26-28, got home, unloaded EVERYTHING from the camper and took it to the dealer on November 2 so they could begin a deeper look into the issue of my soft spot that started at about 1 foot square in the middle of the backside of the 2018 30RIPR floor adjacent to the island.


In their initial investigation prior to this, they determined that the 1 foot square area had grown to be the entire width of the trailer from one opposing slide to the other and was about 2-3 feet wide, now about 24 square feet of floor was severely damaged with a 1 to 1 1/2 in drop.

So, we receive an email from them today indicating that they believe that water is coming from the tires spraying water into the bolts that attach the rv to the frame.

They are sending pics to Keystone and awaiting calls from them. Remember this is on a 2018, put in service the middle of May 2018. Yes we've driven it in a couple of normal rain showers but not any type of flooding rain and has Keystone's Thermal package which one would think would mean you could take it camping in the rain.


Before taking it to them, after reading this thread, I took pictures of this area above the tires to see if there were any damage to the Darco in that area (there wasn't). I did feel small bumps on the other side of the Darco above the wheels which in my experience indicates that the luan has been compromised but my experience had also been that those bumps were caused by water on the other side of the wood.
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Old 11-13-2018, 06:06 AM   #45
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Danny, thanks for the update. Very interesting, as I would never have thought the spray could cause the damage described.

Keep us posted on further developments as I'm sure this will help others in the future.
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Old 11-13-2018, 06:15 AM   #46
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Danny, thanks for the update. Very interesting, as I would never have thought the spray could cause the damage described.

Keep us posted on further developments as I'm sure this will help others in the future.

Believe me when I say I'm not convinced of this either as it defies logic and can't wait to hear what Keystone says. I found it interesting that this was the explanation especially after following this thread where almost the exact same answer was given to the OP. I don't know if this is a standard answer due to the 'I don't know' factor, or 'I can't figure it out' factor.


But then it's scary from a standpoint of how does the owner/consumer protect their rv from this happening if it is truly the case. Is the fix to add some other sealant in that area that requires checking similar to the checks required on other seals on the RV?


Looking forward to hearing from Keystones response for sure.
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Old 11-13-2018, 07:59 AM   #47
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Wow. I have narrowed my RV search down to Cougar and Jayco HT. I have to say this thread scares the begeezus out of me!
Dunno how the Jayco product treats its wheel wells, but I do know their flooring is tongue and groove plywood.
I sincerely wish you the best of luck.
This whole RV thing is daunting.
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Old 11-13-2018, 08:52 AM   #48
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Wow. I have narrowed my RV search down to Cougar and Jayco HT. I have to say this thread scares the begeezus out of me!
Dunno how the Jayco product treats its wheel wells, but I do know their flooring is tongue and groove plywood.
I sincerely wish you the best of luck.
This whole RV thing is daunting.
If I were to bet $$ I'd bet the entry level rvs from Jayco are the very same floor construction as any other of the manufacturers, jump up one slot from entry level & they may be tongue & groove, but OSB & maybe 3/8" though, not plywood. Get into the high end rvs it will be plywood.
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Old 11-13-2018, 09:58 AM   #49
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If I were to bet $$ I'd bet the entry level rvs from Jayco are the very same floor construction as any other of the manufacturers, jump up one slot from entry level & they may be tongue & groove, but OSB & maybe 3/8" though, not plywood. Get into the high end rvs it will be plywood.
Well, I believe it to be tongue and groove marine grade plywood in their HT line at least. https://www.jayco.com/download.php?f..._FINAL%203.pdf
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Old 11-13-2018, 10:12 AM   #50
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Wow. I have narrowed my RV search down to Cougar and Jayco HT. I have to say this thread scares the begeezus out of me!
Dunno how the Jayco product treats its wheel wells, but I do know their flooring is tongue and groove plywood.
I sincerely wish you the best of luck.
This whole RV thing is daunting.
You can be "almost 100% sure that the same construction techniques are used across all major RV brands. Construction (in any price range) is the major component cost. If there was a "significantly better or more durable technique" then all of the manufacturers would be using that method in their trailers. Jayco has "conveniently" eliminated the construction details that were a part of their brochures in years past. They leave much to "owner wishful thinking" after planting the "seeds of hope"... Looking at the current brochure, they state the roofing and floor decking are "tongue and groove". That gives a certain "impression" (to me it means better edge strength). Then a bit further down the list, they indicate the roof decking is 3/8" plywood. They don't state if it is luan or "USA origin" (pine plywood). The older brochures depict laminated floor construction with DARCO as the bottom layer, providing "a waterproof floor"....

IMHO, adding "tongue and groove" construction to the floor decking, on a laminated floor with 1/4" or 3/8" luan (or even plywood) top floor surface, won't improve the strength of the foam or make the floor any more durable than the "flat butt" technique used by Keystone, Forest River, Winnebago or DRV. You can only get so much "strength and durability" out of 3/8" luan or plywood when it's stretched across 24" aluminum stringers, backed with rigid foam and "protected from water intrusion" by DARCO film. The only "improvement" to be seen by the "tongue and groove" construction is less potential for a "visible wear line" on the vinyl flooring that's laid over the joints. Otherwise, potential for water damage, breakage by "stomping" on the unsupported spaces, durability "for the long haul" are essentially the same and aren't improved by "tongue and groove" joints.

As for which trailer brand to buy: They all use the same appliances, same construction techniques (within reason) same FILON, same carpet materials, same vinyl, same wallboard, same TPO roofing, same A/C, same ROMEX, same vinyl wrapped cabinet styles, same sinks, same water pumps, same holding tanks, same staples, same #2 Roberts screws, same converters/power centers, same windows, same butyl sealant tape, same....... same..... same....

For the most part, it comes down to floorplan, colors, which dealer you feel most comfortable buying from, etc. The trailers, for the most part, in any price range, are going to be "about the same quality" as the competition. Otherwise, the "bad choices" would become extinct and disappear..... YMMV
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