The higher quality the material the less likely it is to buckle due to moisture.
Floor is bowing up.
During installation run a vapor barrier under the vinyl plank flooring to help prevent buckling from moisture.
Another important part of installation is the expansion gap.
If water has seeped into the boards they may swell against one another which can cause the bow.
How to repair a hump in the floor.
How to fix bowed floors.
The flooring should be installed leaving a gap of 1 4 inch to 1 2 inch around the perimeter of the room.
If you have a noticeable hump in the floor however something.
Bowing or warping of floor boards can occur for several reasons.
Because soil shifts and house frames settle there is usually a slight variation in floor level.
Check the humidity level of the room and use a dehumidifier if the air is too moist particularly depending on the time of the year.
Without this barrier moisture can cause buckling.
If water seeps up under the flooring from an extremely moist concrete subfloor the adhesive can be weakened causing buckling in the floors.