Help! More floor rot (after dealer repair)

[JLinder]

Long story, but I'll try to be brief.

We're the 2nd owners of a '07 Jayco 27BH. Purchased it when it was two seasons old and in good condition. We used it a fair bit the first few years, maybe 6-8 weekends per year. When not in use it was stored outside.

Last May when I was dewinterizing and preparing for our first trip of the season I discovered a soft spot in the floor under the bunks in the storage compartment. Our insurance company covered the repair and work was done by the original selling dealer. They removed the rear bunks and dinette to get the all of the damaged floor out and fixed what they thought was the cause of the leak. The whole ordeal took all summer between dealing with a busy service department, a flaky adjuster and our insurance company. We got the trailer back in October, and I immediately put it in covered storage. I didn't notice any of the areas now soft being that way when we got the trailer back. In fact I walked, stomped and jumped throughout the rig to make sure the floor was solid when we got it back.

Recently I went in the trailer to look for something and noticed a soft spot in the floor by the bathroom sink. This is right next to the area that was previously repaired. I haven't pull up the flooring but from feeling around it's obvious the plywood is completely rotten and who knows what else. There is still no obvious signs of leaking or suspect areas that look like the cause.

I'm taking the trailer back to the dealer in the next few days (as my schedule allows) but this time I fear the rot goes all the way under the bathroom which means another very costly repair.

I want to give the dealer the benefit of the doubt about fixing the cause of the leak but I don't know what to think. Is it possible that the subfloor, insulation or framing in this area was still damp ( but not actively leaking) and could cause a complete failure over the winter?

Anyone ever dealt with something similar?

Photos:

This is one corner I could pull back a little, it's located under the bunk at the back wall next to the bathroom wall. You can see the corner of the new plywood installed last year.



Another photo in the same spot, you can see the new green edge of the plywood that was replaced next to the very rotten stuff



Adjacent area under the bathtub drain where the floor has a factory cutout for the trap. The insulation and plywood I can see have white mold stuff visible here.




Another photo of the bad spot I can see

[JBarca]

JLinder wrote:


Anyone ever dealt with something similar?

Photos:

This is one corner I could pull back a little, it's located under the bunk at the back wall next to the bathroom wall. You can see the corner of the new plywood installed last year.



Another photo in the same spot, you can see the new green edge of the plywood that was replaced next to the very rotten stuff

I have dealt with slide floor rot and I corrected it myself to not occur again.

Seeing your 1st pic of the corner of new OSB next to total rot out wood sure points to that rot was never removed the 1st time.

There are certain things about OSB that are consistent in many cases.

It does take some time to rot apart like the 1st pic shows. My guess is 1 to 2 years plus. That is not 6 months old started rot. It is a lot older.

If that was a new leak since the floor was installed, then how did the water not infect the new floor? OSB will absorb water when wet unless you have a special high end treated version which may be unlikely.

I would ask the group who fixed it how can this happen? Listen for the answers and then make up your mind if they make any kind of sense and if you will let them touch your camper again. Get a 2nd opinion from someone how has no axe to grind.

I feel your pain. They where paid good money to totally correct this, they didn't.

Good luck

John

[Roadrash450]

May not want to go back to the same dealer who repaired it the first time! They didn't fix it right the first time, no garrantee they will fix it right the second time around!

Side note: I believe Jayco uses plywood for thier floors. They stopped in the mid 1990's with OSB. My neighbours 06 Jayflight is plywood, helped him replace his Lino as it split front to back.

[JJBIRISH]

It seems pretty obvious the rot wasn’t fully fixed the first time…

[ScottG]

I suspect there is a leak in the immediate plumbing. You need to pour lots of water down the drain and put pressure to the water system and check it out good.
I'm suspicious of the black ABS drain pipe in your third picture. I don't see any glue slopped in the joints.

[westend]

Obviously, the material used for the floor isn't the problem.
Since it is close to your water supply lines, has anyone tested them under pressure to see if there is a leak. Also, you live close to the coast so condensation issues might develop. If the area pictured is in an exterior corner, I would expect water intrusion from the outside is the cause.

Also, it appears the repair of the floor was not continued under the wall. If the original rotting floor was left in place, it may continue to rot.

[WoodGlue]

The "subfloor" is called OSB and it's very bad. Where it gets wet, it leaches into other areas, like a sponge would.

WoodGlue

[TKW]

As a former TT owner of similar fate, I feel your pain. I believe the original leak that caused the costly repairs was not fixed. So it's like a cancer that wasn't eradicated the first time around.
When this happened to my TT, it never came across my mind to check with insurance company. I didn't know that could be covered in the policy. I'm a fool.
After battling with floor damages a number of years. Having it fixed by professionals and myself time & again, I finally sold it as a handyman special 2 weeks ago at a crazily low price. It was so low that it was gone in 24 hours. There were 150 inquires before I pulled the ad.