Problems with Brick Veneer Walls

Brick veneer walls are subject to the forces of differential settlement, moisture and thermal-related cracking, and the effects of freezing and corrosion. Common problems particular to brick veneer walls are:

• cracks caused by wood frame shrinkage, which are most likely to be found around fixed openings where the independent movement of the veneer wall is restrained. These cracks are also formed early in the life of the building and can be repaired by pointing;
• bulging, which is caused by inadequate or deteriorated ties between the brick and the wall to which it’s held; and
• vertical cracking at corners, and/or horizontal cracking near the ground, which is caused by thermal movement of the wall. This cracking is similar to that in solid masonry and masonry cavity walls, but possibly more pronounced in well-insulated buildings because of the reduction in the moderating effect from interior temperatures. Thermal cracks are cyclical and should be filled with a flexible sealant. In cases of severe cracking, expansion joints may have to be installed.