New Subfloor

[larrybr45]

In a 1989 2x MFHome, I am putting in new bath, toilet etc. Have some floor spots to replace. Wondering if cutting/tearing out is too much work, and I could simply lay over 1/4 exterior plywood over existing linoleum, then put linoleum, floor tile, or floating floor over the exterior plywood?

Are there particular issues related to putting in new toilet then or tub or cabinet sink? I will put in new door/frame so I can adjust that height difference.

Just seems like laying in new cover makes sense?

[trmimo]

If the subfloor is in reasonably good condition, you can. I would remove the existing vinyl so that you can inspect the floor. If there are soft or water damged areas you should cut them out and replace them. Also, if the floor has swelled, if there peaks and valleys in the floor, you should cut it out. after repairs are made you can overlay the whole room with 1/4" plywood. New vinyl of floating floor would be fine this way. Ceramic should be laid with a cement board backer. If you use a floating floor do not install a vapor barrier between the floating floor and the subfloor.

[larrybr45]

THanks for the info.

Does it matter if I use pressure treated plywood or not? I was thinking this would be better longer term given its resistance to water?

[trmimo]

None of the lumber used in building the floor is pressure treated, so pressure treated would be overkill. And you are better off using a sanded plywood intended for a subfloor especially if you install vinyl flooring.

[admin]

Take a look at Floor Repair Info Kit from Aberdeen RepairThis kit includes a 25 minute VHS video about repairing the floor in your bathroom underneath your toilet,and a booklet on floor repair.



This is not a high-dollar video with actors that wear makeup and every word smoothly rehearsed, these videos are. However a good-quality that features a real contractor clearly showing you how to do the job

[nursegadjt]

I cannot find where you asked about holes in the underbelly. I had the same issue. There is a new roll of stuff that is a strong plastic with metal in the plastic. You can only cut it with sharp knives, etc. And most MH supply places carry it and a spray adhesive that 'tacks'up in about 20-30 seconds. Cut the size you need and spray the adhesive and stick it. It is an easy fix and quite durable. It will not come down without you cutting it. The products are quite reasonably priced as well. hope this helps.