Mar-flex Waterproofing Products

Control Joint Extrusion 1.250″

  • Control Joint Extrusion 1
Residential basements require foundation walls that are watertight and waterproofed. The Mar-flex Control-Joint Extrusion System provides an economical, easy to use a system for eliminating “random shrinkage cracks” which are generally unavoidable, uncontrollable, unsightly and will leak water if not planned for ahead of time. The Mar-flex Control Joint Extrusion System is designed to eliminate random shrinkage cracks by creating vertical control-joints on both sides of a structure’s foundation walls. A watertight outside control-joint is created to ensure further protection.
  • Product Details

    Product Details


    1.250” 4’ and 5’ lengths | Control Joint

    • 1.250″ Height for 10″ and 12″ wall thickness. 2″ mounting flange.
    • Includes 13 splice connectors.
    • Quantity 25/box

    Product Numbers | Control Joint

    • CJS-42340 4′ – 2″ Flange
    • CJS-42350 5′ – 2″ Flange
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