Mar-flex Waterproofing and Building Products is the leading innovator in the waterproofing and building products industries. Mar-flex was the first manufacturer to introduce and offer a 100% recycled and Green drainage solution, as well as an entire line of Green products that will help contractors achieve LEED certification. To this end, Mar-flex continues with its reputation of innovation and success with the new Concrete Control Joint System. The Mar-flex Concrete Control Joint System is designed to eliminate random cracks that are inevitable because of volume changes. To ensure your structure is protected, we also apply a water-tight outside control joint which is filled with Mar-flex Waterstop Elastomeric Sealant and protected by Mar-flex Fiberglass Reinforcement.

Why do we recommend concrete control joints on every structure? Its because concrete, like many other construction materials, expands and contracts with moisture and temperature changes, and these are referred to as volume changes. This change produces cracks in hardened concrete, unless properly controlled. The best provision to take against this problem is to install concrete control joints at predetermined locations, preventing crack-producing stress forces.

The Mar-flex Control Joint System is designed 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 Reinforcement. Basement require foundation walls that are watertight and waterproofed. Our 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 control joints. Check out our selection of control joints today, or browse our catalog to see our full line of products.