I recently had 3/4" engineered oak floor installed on concrete. They left a gap around all of the walls except where the floor goes under the stone. The installer told me not to worry because it will expand on the other wall. The floor spans about 1600 sq ft, so I'm not as convinced.
We left a gap under the stone for the wood to go underneath. However, I noticed a few spots where the boards butt directly on the stone/grout.
It seems odd that they were so diligent to leave a gap everywhere else and failed in a few spots under the stone. The instructions from the manufacture states that a 1/2" gap is required on all vertical surfaces. I'm concerned that the floor might buckle and put extreme pressure on the stone wall.
How concerned should I be? What are my options?
I don't quite understand this statement....where is the flooring in relation to the gap?We left a gap under the stone for the wood to go underneath. However, I noticed a few spots where the boards butt directly on the stone/grout
The expansion gap parallel to the flooring is to allow extreme expansion of the outermost rows. If there is extreme expansion toward the middle of the room the flooring would buckle in the middle of the room. The installer's comment about the opposite side of the room handling the expansion is not correct....an expanding floor will take the path of least resistance but his comment is really pushing it.