If necessary add vapor retarder before applying underlayment especially recommended if 3 4 inch wood flooring is installed over concrete.
Diy concrete floor over wood subfloor.
Nail down subfloor system get 3 4 inch minimum cd exposure 1 plywood subfloor panels 4 foot by 8 foot sheets.
Even for ceramic tiles it is not advisible to put them on a particle boards subfloor let alone concrete.
Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring.
A decorative concrete flooring material can be installed over an existing concrete slab a plywood subfloor or a 3 4 inch solid hardwood flooring.
The wood subfloor must either be solid hardwood flooring a minimum of tongue and groove apa rated type 1.
The primer solution.
How to install subfloor sleepers over slab in the basement and other rooms with a concrete floor.
Replace any weak or water damaged wood.
In many homes plywood was chosen as a flooring substrate and applying concrete over plywood gives you more options for using what you already have.
Treated plywood to the concrete with concrete screws spaced every 16 in.
It will eliminate the risk of your floor collapsing under its own weight.
Before installing any wood floor over concrete you ll need a moisture barrier.
Secure loose boards with deck screws and fill open seams with rapid setting polymer modified concrete.
Typically it is sheets of plastic laid on the slab and taped at the seams with waterproof tape.
After the wood surface is thoroughly prepared prime the surface with paramol.
I don t think having concrete over particle boards is an option.
Rather than tear out a wooden floor and installing concrete your wooden floor can be turned into a beautiful concrete floor with a concrete microtopping.
When it comes to solid wood both strip and plank flooring are acceptable as long as they are in good condition.
It will extend up the wall for about 2 to 3 inches creating a bowl where your wood floor stays dry and protected.
So you might want to consider filling the crawl space.
The open joints should be filled with a rapid setting patching compound.
Alternatively screw rows of treated 1x4s to the concrete 16 in.