Dictionary of Moisture Protection & Restoration

Clip = Cut brick piece or section. Closer = The last brick or block laid in the course. Also ( closure). CMU = Concrete Masonry Unit. Composite wall = Masonry wall with wythes of different materials, such as brick and block. Compression = Downward crushing load on a wall or beam, as on the top of a lintel. Control joint = Vertical joint made in the wall to allow for shrinkage and prevent cracking. Coping = Masonry cap on top of a wall or pier. Very important as a water barrier. Corbelling =

A masonry technique of widening or projecting out a masonry wall (or part of a wall) to form a decorative feature, a support shelf or a

ledge for a building element. Also used to widen a support wall. As a general rule, the masonry unit should not extend out more than one-third the width or one-half the height. The top course must be a full header course.

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