What does Control Joint Mean?
Definition of Control Joint in Construction
Control joint is similar to a construction joint and are commonly misrepresented, depending upon the location of the project as well as the party discussing the concept. A control joint is exactly what it references, a means of controlling movement within the structure. A construction joint is basically a joint that not only controls the expansion and contraction of a structure, but is needed to allow the actual construction of the project to occur. Control joints are normally much easier to locate and not as critical as the construction joint in its influence on the structure.
As the name implies, control is just that, these joints exist to control the cracking of a material due to expansion and contraction. A control joint is a contraction, expansion joint, and in many instances are enclosed or covered with special aluminum or synthetic assemblies. These covers are specified within the project specifications and are specific to the individual project. The procurement of these special covers and assemblies are normally a long lead item on a construction project, and proper construction management is required to ensure that this element of the construction project is available for installation, at the proper time in the construction schedule.