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Thread: The Perverbial Rotted Floor due to Water

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    The Perverbial Rotted Floor due to Water

    I spent a few hours scouring this forum for information that would assist me in replacing two significant floor areas in my 2011 MPG 181. Like I've read so many of the buyers did here, I bought a travel trailer that had issues that I should have been able to diagnose and consider in my purchase. However, to my embarrassment and chagrin, I missed them. I haven't started tearing into the floor yet as I want to sniff out and snuff out the leaks first to mitigate further water damage. Not much sense in replacing a floor that will just get wet again in the next rain or trip through a rainstorm.

    I did get some great information herein respective to what may be leaking and how to test for and repair the leaks. I was hoping to gain some insight into the specifics of the ripout and replacement of the floor itself like: Is it from the bottom to top membrane, OSV board, styrofoam, OSV board and vinyl floor covering? Can you remove and replace certain floor areas without dismanteling and reinstalling the bathroom floor by simply cutting around it? (it doesn't seem to be leaking there) but I am prepared to see that the rot has migrated beyond the "soft" areas in the floor which are primarily under the dinette in the rear and the bed area at the front.

    Anyway, any help or guidance would be greatly appreciated. I do plan on taking pictures and posting them during this project to share with those who may be in the same boat, or in this case, trailer.

    thanx,
    robo
    Last edited by Robo; 2 Weeks Ago at 07:06 AM.

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    Moderator danemayer's Avatar
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    Re: The Perverbial Rotted Floor due to Water

    Hi Robo,

    Welcome to the Heartland Owners Forum.

    Sorry to hear that you have problems with the flooring. Hopefully another MPG owner has some experience with the repairs you're undertaking and can give you some guidance.


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    Re: The Perverbial Rotted Floor due to Water

    Robo,

    I did not have your model but let a leak go too long on a previous Big Horn. Let me try and remember the process as we had that “sandwiched” 6” thick floor.

    1. Any way I could I removed the flooring. Had both carpet and tile. Made the area larger than the soft spot. It was about 2 foot by 3 foot section.

    2. Removed the easy part of the wood until I got close to the edge. Then had to use a circular saw or chisel to remove all the way back to good wood. There was one structural “floor Joyce” and once I found it I tried not to cut into it.

    3. Around the edges, in several places, I used short pieces of 2 by 2 that I forced back under the good floor left and screwed them in place (counter sinking the holes) such that several inches of it extended out into the opening.

    4. Once that was done cut the odd shaped piece to put in new. This was probably the hardest part since it was an odd shape.

    5. Slathered glue everywhere I could and put the new piece in and counter sunk screws in to hold it in place.

    6. Replaced the foam pad and just laid the carpet and tile back down.....unless they take it apart the new owners will never know there was a problem.

    The whole thing is more time consuming than difficult. I was traveling full time when this happened so it was a pain.....but got it done in about 5 - 6 hours.
    Gary Powell

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    Re: The Perverbial Rotted Floor due to Water

    Quote Originally Posted by danemayer View Post
    Hi Robo,

    Welcome to the Heartland Owners Forum.

    Sorry to hear that you have problems with the flooring. Hopefully another MPG owner has some experience with the repairs you're undertaking and can give you some guidance.
    Thanx, I hope so too. It's obvious by the amount of traffic regarding this issue that there is a good chance that, sooner or later, there is a chance that TT owners may have to deal with this.

  5. Print this Post   #5
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    Re: The Perverbial Rotted Floor due to Water

    Quote Originally Posted by Garypowell View Post
    Robo,

    I did not have your model but let a leak go too long on a previous Big Horn. Let me try and remember the process as we had that “sandwiched” 6” thick floor.

    1. Any way I could I removed the flooring. Had both carpet and tile. Made the area larger than the soft spot. It was about 2 foot by 3 foot section.

    2. Removed the easy part of the wood until I got close to the edge. Then had to use a circular saw or chisel to remove all the way back to good wood. There was one structural “floor Joyce” and once I found it I tried not to cut into it.

    3. Around the edges, in several places, I used short pieces of 2 by 2 that I forced back under the good floor left and screwed them in place (counter sinking the holes) such that several inches of it extended out into the opening.

    4. Once that was done cut the odd shaped piece to put in new. This was probably the hardest part since it was an odd shape.

    5. Slathered glue everywhere I could and put the new piece in and counter sunk screws in to hold it in place.

    6. Replaced the foam pad and just laid the carpet and tile back down.....unless they take it apart the new owners will never know there was a problem.

    The whole thing is more time consuming than difficult. I was traveling full time when this happened so it was a pain.....but got it done in about 5 - 6 hours.
    Thanx Gary. That helped. Made the work seem not as intimidating as I thought it to be.

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    Re: The Perverbial Rotted Floor due to Water

    While I haven't worked on a MPG I have repaired a Jayco floor and more.
    This afternoon I will upload a couple videos to YouTube and link them here. Might be of some help.
    All I can say from my experience is be prepared. You really don't know the extent of damage till you tear up the floor covering.

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    Re: The Perverbial Rotted Floor due to Water

    Reading the fixes, let me add that you should seal any edges of plywood that are along the outside perimeter. Heavy paint, Gorilla tape, whatever. Do not leave raw edges.

    Pay particular attention to areas covered by wheel skirting. It’s probably wide open behind the ragged sheet metal behind it.


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  8. Print this Post   #8
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    Re: The Perverbial Rotted Floor due to Water

    Quote Originally Posted by Robo View Post
    Thanx, I hope so too. It's obvious by the amount of traffic regarding this issue that there is a good chance that, sooner or later, there is a chance that TT owners may have to deal with this.
    Here are a couple videos of a rotted floor and more repair.
    Although it was not an MPG the basics should be similar.
    Keep in mind that this project was extreme and hopefully yours will not be as bad.

    Vid 1

    Vid 2

    Vid 3

    Vid 4

    Vid 5

    Vid 6

    Hope this gives you a little confidence going forward.
    Good luck.

    Peace
    Dave
    Dave and Mary
    and C. J.
    2011 Bighorn 3585RL

    2013 RAM 3500, CC, DRW, Aisin
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    Re: The Perverbial Rotted Floor due to Water

    Quote Originally Posted by JohnDar View Post
    Reading the fixes, let me add that you should seal any edges of plywood that are along the outside perimeter. Heavy paint, Gorilla tape, whatever. Do not leave raw edges.

    Pay particular attention to areas covered by wheel skirting. It’s probably wide open behind the ragged sheet metal behind it.


    Sent from my iPhone using Tapatalk
    Thanx for the tip John.

    - - - Updated - - -

    Quote Originally Posted by cookie View Post
    Here are a couple videos of a rotted floor and more repair.
    Although it was not an MPG the basics should be similar.
    Keep in mind that this project was extreme and hopefully yours will not be as bad.

    Vid 1

    Vid 2

    Vid 3

    Vid 4

    Vid 5

    Vid 6

    Hope this gives you a little confidence going forward.
    Good luck.

    Peace
    Dave
    Wow, what a mess! Thanx for the reference material.

  10. Print this Post   #10
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    Re: The Perverbial Rotted Floor due to Water

    37F9B82B-0846-4F65-A05B-0130EDB9CD86.jpg
    Started the floor ripout. I’ve got a question that I am hoping someone may be able to help me with. The picture attached shows the exposed alum angle that the 1/2” rotted Particle board was attached to. They run from one side of the trailer to the other but they are 50.5” apart! That seems like a large gap for frame spacing. There must be some intermittent support but I can’t tell from looking under the trailer as I am trying to keep the rubber vapor barrier intact. I am also trying to keep from removing the styrofoam for fear of damaging the barrier from the topside. Is there someone on this forum that might have some drawings or photos that might help give me some insight into the floor?

    Also, if someone tells you that a soft spot in the floor of an RV that you are considering to purchase RUN, RUN like the wind.

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