06/21/2022
Corner pops. They show up in almost every home inspection. Why are they so common and what causes them?
Corner pops are not caused by differential foundation movement, but rather thermal expansion. It occurs at the corner of the foundation and is extremely common on slab homes in North Texas with brick veneer. Occasionally, you will also see a vertical crack running straight up the brick wall form this corner of the foundation. When it gets hot outside and the materials expand, there must be a break point to relieve the pressure, and this triangular unreinforced corner is a weak point to break off. It is fairly important to patch these to maintain cover over the reinforcing steel, and does become a regular home maintenance item.