Control Joint™ is a PVC lineal contractual joint system for concrete crack control. Control Joint encourages the concrete to crack in a designated acceptable manner. Control Joint has excellent weatherability. It is virtually unaffected by chlorine and pool chemicals.

Designed with side fins to prevent the free flow of water to the subsoil.
Made with high impact PVC and UV inhibitors.
Installs quickly just after screeding but before any stiffening starts.
A Control Joint and Expansion Base combination can be used to stop and restart a concrete pour.