That's right. I am forced to put a new floor covering over an insane previous FOUR floors. I really have no choice.
This is a classic DYI scenario in that I am reluctant to remove an existing flooring system, and in that I will propose various hair-brained schemes to workaround it.
Let me explain. My question will follow.
It's a kitchen I'm renovating in a 1957 wood frame ranch. I have no access from below. Floor #1 is original 1957 glued right to the
plywood floor. It is a mystery sheet vinyl revealed only where I removed a peninsula, which was added after 1957. Floor #2 is a tile of unknown size, glued right to floor #1. I recovered only one small chip, the rest is nicely buried between floors #1 and #3. I put the small chip in a baggie, and the baggie filled with zillions of little fibers of the same color. I am 95% certain this is asbestos. Glued to this is 1/4" plywood and modern sheet vinyl floor #3. And glued to this is another 1/4" plywood and another modern sheet vinyl floor (#4).
Believe it or not, the fact is I have room for one more 1/4" plywood underlayment. The result will be exactly the height of the carpet in the adjacent rooms.
I "tested" the bond strengths of the various floors. The vinyls and underlayments are extremely well-attached to each other except for the very last vinyl. The last plywood is well-attached, but the last vinyl tends to peel-up slightly from its plywood around the edges in some places.
I have "holes" down to the 1957 plywood where the original cabinets were removed last week. (The
dishwasher would never have come out if the old stuff weren't demolished for new cabinets!) And as I said, I have another "hole" down to floor #1 where a peninsula was removed.
I PROPOSE to fill these holes with a lamination of layers of 1/4" plywood and/or other materials - all glued together with some kind of adhesive - until the holes are level with floor #4 - and nail this down through the original floor wood.
Then I plan to cover the whole thing with 1/4" plywood followed by (A) new cabinets, and then (B) a new sheet vinyl floor. This order is dictated by certain project management constraints - otherwise I would just vinyl under the cabinets, too.
NOTE: I cannot afford the time, effort, cost, or hazard of removing the previous floors. I just cannot.
Question #1: What adhesive should be used to glue together the [plywood?] spacers that fill the holes?
Question #2: What adhesive should be used to glue the new plywood underlayment to the existing vinyl floor #4 - and the new vinyl to the new plywood?
Question #3: Should I either nail the existing vinyl before the new plywood (wouldn't hurt, right?) - or nail the new plywood (I presume NOT to do that except along the edges) before gluing the new vinyl sheet?
Your patience with my limitations is appreciated. Your expert advice on this scenario is deeply needed.
Thanks in advance.