Concrete has a dull black finish that i think is from the previous glue that was used 1966 and has some remnant dust from the homosote.
Too much glue hardwood to concrete.
Ken fisher is a flooring contractor in bonita springs fla.
Photos by charles bickford except where noted.
Glue down hardwood floors on concrete.
When glue is used in conjunction with screws and nails the bond is strong enough to resist natural movement of the wood.
Although this may be true they run out of the adhesive halfway through the installation process and lose precious work hours.
Solid hardwood should not be glued to a concrete slab.
The installation of hardwood floors by the glue down method is used predominately on concrete slabs.
This is a common mistake with newcomers to the do it yourself hardwood flooring field.
Engineered hardwood is perfectly suited to do the job and there is no reason to glue down solid hardwood.
They use too much adhesive thinking that more is better and the panels will be more secure this way.
I have seen some glue down 3 4 solid hardwood floors directly to concrete and many installers use straps or clamps in an effort to force board rows tighter together during installation.
Clean up any glue as you go.
Be advised that over strapping can adversely affect the floor and may result in glue bond failure seam peaking twisted boards or out of square floor board alignment.
Glue forms the initial bond but without screws and nails the natural expansion and contraction of the wood can break or weaken the glue.
We have scraped and vacuumed and the concrete seems ready for the new glue for our subfloor sound deadening mat to which the 5 8 x 5 engineered oak floor will be glued.
Once the glue dries it s much harder to remove.
Glue is a secondary method of attachment for bonding wood to concrete.
Applications are more prominent with residential construction in sunbelt areas commercial locations and high rise dwellings.