In technical terms wood is called a hygroscopic material. This means that it adapts its shape to changing temperatures and fluctuations in humidity. Traditional solid floors, under the influence of the changing indoor climate and the constant process of shrinking and swelling, often bulge or deform after some time. Multilayer wooden flooring offers the ideal solution to that problem.
Multi-layer floors are semi-solid wooden floors, specially designed to minimise the natural movement of the wood (and therefore distortion).