They tested bending a Fiberock board until it broke and it was totally silent, no sound at all. So I don't know if the Fiberock could be making the noise. There are definitely hollow spots under the Fiberock. They said the leveling system pulls the boards up so it increases hollow spots, but...
Hi,
I purchased engineered wood flooring at my local flooring store and they subcontracted the installation. My bedroom's concrete (slab) floor is about 2 inches lower than the marble tile in the hallway that leads to my bedroom. In order to raise the bedroom floor to make a less extreme...