An oak floor that has been down for about 3-4 years has juust started to lift .
2 boards in the middle of the room, lifted from there batons, prerventing a
door to open. Boards are 6" oak T&G nailed ( through the tongue ) on 3/4 batons
which are screwed and plugged to concrete floor
Could this prolonged warm weather have caused the shift and what is the best
way to remidie this.