If that is correct, could you put a thin layer of wood (Shim) on top of the joists that would bring the plywood level? If … I never could for sure figure if humid air in West Central Missouri (down in the woods close to river) would cause more humidity to be under whole trailer even when the ground moisture was not there. The floor may roll a marble and looks to slope now that the carpet has been removed. Amazon, or your local library, have a variety of books on how to pick contractors that cover the subject in more detail that I can here. Paul I could never see that removing old flooring was worth the cost/effort. Hi Denise, The area that has been wet was from where we used to bath my later husband sitting on a shower chair. Should you use 1/2 or 3/4 inch plywood over an existing floor your covering in a mobile home? My first thought would be to crawl under the home and see if there is water trapped under there. The bathrooms both have what looks like new partical board patched around the toilets. Been there & done that I don’t want to damage them trying to separate so I could reconnect after patching framing. Good luck with the project. Yes. An unlevel floor results structural problems that can become severe. I assume the original floor is particle board. It’s now really soft. I have looked at the windows and caulked a few but the problem is still there. It was a lot of work cutting out to right depth and trying to sand & or remove gluing under the particle board on the joists so I LIKE the idea of using tar paper over the particle board and and going over all with 3/4″ outdoor grade plywood for that part of the trailer. We have a hard hump in the Dining room and I am wanting to replace carpet but I am afraid of what is going on with the floor. Thanks for the longer post. Your comment brings up a lot of interesting issues. Near tub and other places where the old flooring breaks away you can fasten wood strips to the floor joists the being them level with the rest of the floor. I beleive just weak particle board. Floor has become uneven. what about the toe kick -any advice would be very helpful-i plan on replacing all the floors room by room Carpet manufacturers are constantly searching for ways to produce carpet that looks and feels better but is cheaper to produce. Excellent comments and help! I always liked to use 3/4″. I am “assuming” the moisture causing the particle board to fail has been a gradual deterioration from humidity coming up from the soil under the trailer over the years on that end of the trailer that is closest to the ground? Did that to match heighth existing to surrounding linoleum. The floor is not level or square, built in the 70's. Use a grout saw to remove the grout around all four sides of the damaged tile. If you choose to fix it now, you’ll get a variety of benefits from it. As far as the toe kick, what if you get a piece of 3/4″ plywood and lay it on the floor to see if the added height will be a problem? Paul To me it looked like a lot of work to cut out the old, clean off old glue/nails, install support along the cut edges, etc. However, we live in Mississippi and do get a lot of rain. Now, over the last couple of weeks I had a hump in my kitchen , currently vinyl. In a new home, or one that has just been moved, the sticking door is probably a fairly simple adjustment problem. I have appreciated your commentary on fixing soft mobile home floors. The subfloor in my MH kitchen is buckling in several spots. I think the decision to cover the old versus remove and replace depends on the skills and tools available to the person doing the work. Paul They frequently occur in bathrooms, under flower pots, below windows, and behind washing machines. we have a very soft spot about to cave just in front of the toilet. I'd suggest 2 ft deep and slightly larger than any block you intend to use. This is a job best done when replacing the floor insulation in your mobile home. I was going to cover the entire room with new plywood but now that it has the hump a sheet of plywood won’t lay flat. as well. Throughout the process, make sure that your floor is level. Paul I’ve noticed the linoleum is peeling away from under the floor jamb that connected the faux-wood linoleum to the walk-in shower seal on the floor. If it doesn’t rain the floors start to dry. I have a 2001 doublwide mobile home which has brick around bottom. Paul I have a general question. Would you still recommend laying new floor over this of OSB or Plywood? I had good luck using drywall compound to fill in the grooves and seams in the old paneling and then spraying texture on it. It would save you from having to re-do the whole area and dealing with the cabinets. When doing a home renovation or remodel, there are many considerations. I am tired of chasing this but i know it is not good for home to continue like this and also i would love to install flooring like i had planned to do in the beginning. Kevin Given the work you are already contemplating, it would not add a lot of either cost or time. We have had all ac ducting replaced, have put plastic put underneath, added another return air installed made sure the belly has no opening. Not everyone agrees with me. ... with a ridge from one side of the home to the other as mentioned the first thing to do is have a qualified expert mobile home contractor check and relevel the home if needed. For example, would it hold a piano? I currently live in a mobile home, the floors have multiple soft spots and I am wanting to replace the entire floor. This is not the way to go, because it takes as much time to explore the entire mobile home floor and find the soft spots. Randy I have seen a circular area of a floor destroyed by a large plant in a clay pot that wasn’t properly waterproofed. They may be crimped together in manner they couldn’t slide apart if the trailer has been painted a few times which it has. Soft spots are less common in newer homes that have plywood or OSB (Oriented Strand Board) subfloors. Hello Mr. Paul, I just read my email….glad you understood exactly what I intended to say…I will take your advice and use the better size wood….ok…here’s the next question, who do you recommend to replace the kitchen cabinets? I not sure you need the tar paper at all given you are using waterproof plywood, certainly not over linoleum. I know we have a leak because my water meter doesn’t stop. The home has a basement where we can see the floors, and I … Is the water heater close to the problem area? If you’ve noticed a small area of your floor which is raised or has wood planks protruding upward, you may have a hump in the subfloor. If it is wet I would give it lots of time to dry out after fixing the leak. Sometimes it takes me a while to look though them. Could you use floor leveler (a concrete product) to fill the depression and bring the surface level? What do you suggest? Replace Your Old Uneven Floor Cheap and Easy.We show you how to replace your uneven flloor or subfloor. I have replaced the roof and the problem still exists. Sometimes people…, If you need to replace a cracked ceramic tile and have or can buy one that matches, the procedure is as follows. We have no plumbing leaks no moisture in the insulation no roofing leaks no window leaks no explanation of why this one room has moisture, i can turn ac off for two days with low humidity outside and at this spot on the floor level the humidity can be up too 65%. Soft spots are less common in newer homes that have plywood or OSB (Oriented Strand Board) subfloors. paul gallion -Andrew Is it wood under there, or particle board? The middle is always droopy, so it is hard to say if it is also wet. Whether you’re planning to replace an existing floor or not, a hump in a subfloor requires removing the problem before it worsens. Paul, Kristin Hi there, I’m about to purchase my first mobile home and it’s a 1979 which was originally a single wide but in 2012 the previous owner added on a new section. We are renting a Maybe 8-10 yr old double wide. There would be a bump which might be a tripping hazard I suppose. You could also carefully use a saw to cut some kerfs into the floor. To the best of my knowledge there are no water lines leaking under the unit. However, I always felt the extra cost of the best was a small percentage of the total project cost. In either case you, should have it looked at by a pro because those types of problems will usually get worse over time. These walls are cantilevered over the I-beams, so the actual unsupported span is more like 8'. Unlike a conventional home which has a foundation, most mobile homes depend on blocks or piers for support. How to repair your Mobile Home Floor in a single wide trailer. Paul how would we go about fixing this?? I guess if you covered that place with quarter inch plywood & walked on it a lot the particle board underneath might break down and fall away. Floating floors are a less expensive option when dealing with uneven surfaces. is there away to just butt up against door threshholes? Can not figure out how to stop this from happening, as underneath seems to be ok and belly Pan is covered. It never worked for me. When I purchased a MH with damaged floors, which is usually the case, I remove the carpet and padding and/or tile, put down black roofing paper over the original floor and then lay plywood or OSB down with screws rather than nails. If the edge of the tile is loose you may be able to pry it up by…, When cabinet doors in a mobile home stick the cure depends on the cause. 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