Stucco defects are common and often affect the aesthetic of your home or property. Stucco must be installed in strict accordance with code and the manufacturer installation instructions, which include the proper integration of stucco flashings with other building components and drainage capabilities. Stucco defects are most often caused by improper installation, but also can result from improper stucco mixture materials, non-uniform thickness, and insufficient strength of the cement plaster caused by improper mixing or curing of the stucco cement. Reinforcement problems can also result from missing or defective lathing wire, structural discontinuity, and inadequate attachment to the building structure.
Property owners should look for cracks or separations in the stucco, especially near window and door frame corners, including sliding glass door frames. Movement of the structure, foundation, or earth supporting the foundation can also contribute to stucco cracking. If improperly installed, stucco defects can lead to significant problems.