Mar-flex Control Joint System
Concrete, like other construction materials, expands and contracts with moisture and temperature changes, these changes are referred to as volume changes. Volume changes produce cracks in hardened concrete unless they are properly controlled. Making provisions for volume changes, such as concrete control joints, at predetermined locations prevents a concentration of crack-producing stress forces. Adequately designed and constructed, control joints eliminate unsightly random surface cracks from forming by gathering, distributing, and dissipating stress forces resulting from temperature and moisture variations. Mar-flex Control Joint System is designed to to ensure optimum protection, with a watertight outside control-joint which is created when filled with Mar-flex Waterstop Elastomeric Sealant and protected by Mar-flex Fiberglass Fabric Reinforcement. Basements require foundations walls that are watertight and waterproofed. The Mar-flex Control-Joint System provides an economical, easy to use system for eliminating these cracks, which are unavoidable, uncontrollable, unsightly, and will leak water if not properly planned for ahead of time with a control joint solution.
