Choosing the right material is essential with maintaining the integrity of wall joints.

Movement joints are used to eliminate or control cracking within the fabric. The joints are located in strategic positions and allow slight, predetermined movement without subsequent cracking to the masonry. Spacing, design and location of movement joints depends on the dimensions and shape of the wall in question, detailing techniques and complexity of structure. The joints should be located at junctions which may be vulnerable to cracking. The position of movement joints will be strongly governed by structural and architectural considerations