Myth or Fact: All Cracks in Stucco or EIFS are Bad
One of the most common issues with Stucco and EIFS are cracks. Cracking can occur in both cladding systems but are more common in traditional stucco. Cracks can develop due to a number of different reasons. The typical type of cracks that occur in with traditional stucco are called hairline cracks. These cracks are a result of the stucco brown coat shrinking during the curing process. Control & expansion joints are sometimes installed to help prevent these types of cracks from occurring.
Cracks can also develop around windows & doors. Both types of opening contract & expand during the different seasons which can lead to cracks either near the perimeter of the door/window frame or near the corners of each one.
Cracks that occur in EIFS are typically near window & door frames as described above. Cracks can also develop at floor lines if proper expansion joints are not installed.
The question becomes, “Do the cracks need to be fixed?” The answer is yes and no. Hairline cracks that develop in traditional stucco or hard coat stucco do not necessary have to be fixed if the width of the cracks are less that 1/16 of an inch. If they are greater than a 1/16 of an inch, they should be repaired. It is important to note that all cracks less than the 1/16 of an inch should be monitored and repair if the cracks become wider.
Cracks that occur in EIFS should be repaired no matter what size they are. Even the smallest crack can allow a significant amount of moisture into the wall cavity which can cause damage.
