All homes move based on changing soil and environmental conditions. In general, this phenomena is defined as structural movement. In practice, there are two types of movement: routine structural movement and significant structural movement. Minor movement, within the scope of the design, is often termed as routine settlement or routine structural movement. More problematic movement is that which is outside the scope of the design and is potentially a danger to the survival or performance of the structure. This type of movement is referred to as significant structural movement or as a structural failure.
