To glue a wooden floor a full coverage of flexible wood adhesive must be applied to the sub floor and the boards.
Gluing solid wood floor to concrete.
Other products are better suited for a nail down installation where they are secured to a wood subfloor with nails or staples.
It usually takes a couple of coats to level out a large area.
While it s possible to glue hardwood flooring to concrete it s a messy and risky procedure and it s prone to failure.
2 layers nominal 3 8 minimum cd exposure 1 plywood subfloor panels cdx 4 x 8 sheets.
Glue is a secondary method of attachment for bonding wood to concrete.
It will extend up the wall for about 2 to 3 inches creating a bowl where your wood floor stays dry and protected.
If you can t use shorts you ll have to subfloor the concrete with plywood using bostics and concrete nails.
The national wood flooring association recommends two alternative installation methods.
The slab should not exceed 3 16 in.
Grind down small high spots with an angle grinder.
Typically it is sheets of plastic laid on the slab and taped at the seams with waterproof tape.
I always recommend solids over engineered.
Small high spots can be ground down with an angle grinder.
Watch this video to see how easy it is.
Solid parquet should not be installed below grade.
Gluing down solid wood flooring to concrete 1.
Check the slab with a straightedge and mark any spots that are lower or higher.
Then paper the floor and nail using 1 1 2 cleats.
A glued floor feels as solid as a nailed floor underfoot and can handle the contractions of the wood thanks to the flexibility of the glue.
Some engineered wood flooring products are designed for a glue down application when installing flooring over a concrete slab.
Glue forms the initial bond but without screws and nails the natural expansion and contraction of the wood can break or weaken the glue.
If your installing long wide boards glue and nail.
Installing plywood over the subfloor or using sleepers which are two by fours laid flat across the floor and used as nailers.
In flatness over a 10 ft.
And for do it yourselfers the preferred method is the floating floor installation which uses no glue or nails.
The only limitation is the slabs must be above or on grade.
When glue is used in conjunction with screws and nails the bond is strong enough to resist natural movement of the wood.
Before installing any wood floor over concrete you ll need a moisture barrier.
These products regardless of species thickness or width can be glued down successfully over concrete or gypsum based sub floors.