This is a quick post with some pictures taken during the installation of a whitewashed oak, pre-finished, engineered wood floor installed over a rubber sound mat on a concrete slab in Manhattan. This was at The Sheffield on west 57th street.
There are a couple of pics that show how we lay out the first few lines of the floor. Notice that the boards are being taped with a blue painter's tape: this is to keep them from separating before the glue sets enough to hold them in place.
In the next to last last photo you'll see a shot from down at ground level showing the board laying flat on the floor. Occasionally we'll stop during the installation to check whether the boards are lying flat on the glue that's been applied to make sure there won't be hollow spots in the floor once it's installed.