My new engineered wood flooring is buckling and rippling. Replaced 10 year old carpet in master bedroom, living room, hall way, dining room with engineered glue down wood flooring. Areas around the fireplace have buckled in living room and on the opposite wall in the bedroom. The contractor said we must have a water leak around the fireplace. Roofers found a pin size leak, fixed it, but flooring is still buckling and rippling throughout other areas in the house. Contractor said we must have a water pipe under concrete slab leaking. American Leak Detection checked pipes- no leaks. Flooring is still rippling down hallway and other areas. Engineered flooring is Toledo Bend- Sabine Hickory, glue is Titebond 771 STEP. When the carpet was pulled up the slap showed no signs of moisture, carpet wasn't wet, mildewy, or moldy. What do we do? Over 400 square feet needs to be replaced. We live in south Louisiana.