I purchased engineered wood flooring, following manuf. requests, but it started to separate within a month. I pulled it all apart and GLUED it back down, removing the moisture foam barrier stuff. Now EVEN after glueing the flooring to the subfloor- it is still separating in places, not as many, but Dang! lol
The reason is simple ! it is not seasoned well. hence it is shrinking. Go back to the supplier and demand rectification of the defects.
If you mop it, and it isn't nailed to the subfloor, it will absorb water and expand when wet and shrink when dry. This creates cracks as the expanding and shrinking causes it to pull away from each other.
