What is a common sign of improperly installed brick support?

A common sign of improperly installed brick support is the presence of cracks in both the brick and the mortar. When brick support is not adequately installed, it can lead to structural stress that exceeds the material's capacity to bear weight or resist movement. This stress manifests as cracks, which may appear in various directions and sizes depending on the severity of the support issue and the specific conditions affecting the structure, like temperature changes and moisture levels.

These cracks are not only an indication of aesthetic problems; they can also lead to more serious structural issues if not addressed. They may allow moisture to penetrate the joints, which can further compromise both the brick wall and the underlying structure. Maintenance personnel can use the appearance of cracks as a diagnostic tool to evaluate the integrity of the brick support system, allowing for timely interventions to prevent further damage.

The other options do not directly denote problems with brick support. Uneven paint may point to surface-related issues rather than structural ones, excessive rain runoff might be related to drainage problems, and bright discoloration could indicate issues like efflorescence rather than support deficiencies. Thus, the detection of cracks in brick and mortar is clearly the most reliable sign of improperly installed brick support.