There is no call to panic, as such situations can be avoided easily with a little bit of prevention. In 80% of all cases, residences respect normal conditions and problems may be avoided with a little care. Deficiencies in ambient humidity can be corrected by home owners when they are aware of the possible consequences. "Sources of contraction or the expansion of flooring are numerous. Luckily, most of the sources can be controlled, before, during or after installation."