Waterproofing Systems

Failure-free waterproofing systems, designed with the installer in mind

Waterproofing Membrane & Accessories
Fast-sealing, flexible, protective waterproofing membrane

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  • PROVA JOINT® Waterproofing Joint

    PROVA JOINT® waterproofing strip seals seams and transitions where water could penetrate. The joint strip also resists mold and mildew growth. Resists mold and mildew growth ICC Certified Durable, polyethylene construction 13.78 mil (0.35 mm) thick Premium polymer-modified thinset mortar required for installation. Premixed mortar or mastic are not to be…

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    $1.00
  • PROVA-MAT® Waterproofing Membrane

    PROVA-MAT® is a low perm waterproof membrane that is ideal for use in wet areas, such as showers, bathrooms, laundry rooms, backsplashes, countertops and more. The easy-to-install membrane resists mold and mildew growth and provides great resistance to water vapor transmission When installed over PROVA BOARD® PLUS, the waterproofing properties…

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    $1.00
  • PROVA CORNER®

    PROVA CORNER® is made from PROVA-MAT® waterproofing membrane and is used to seal and waterproof the inside/outside corners of a shower base and curb. The preformed corner design eliminates any seams. The corners also resist mold and mildew growth. Used to seal and waterproof the inside corners of shower floor…

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    $1.00
  • PROVA PIPE SEAL®

    PROVA PIPE SEAL® is a prefabricated seal made of cut sections of PROVA-MAT® with a flexible collar designed to seal pipe protrusions. The pipe seal also resists mold and mildew growth. Resists mold and mildew growth Durable, polyethylene construction 7/16 in.(1.11 cm) opening 16.14 mil (0.41 mm) thick Premium polymer-modified thinset…

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    $1.00
Waterproofing Tile Backer & Accessories
Ultra-rigid, XPS waterproof core board, perfect for installation in showers, counter tops, tub surrounds, and more

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  • PROVA-SEAL™

    PROVA-SEAL™ is a 100% waterproof sealing and bonding compound. The sealant cures within one hour and even quicker in the presence of moisture or humidity. It creates a watertight, flexible seal that will not shrink, crack or crumble! PROVA-SEAL™ can be used to waterproof and seal pipe/valve protrusions in the…

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    $1.00
  • PROVA BOARD® PLUS – Waterproofing Tile Backer

    PROVA BOARD® PLUS is a lightweight, high-density tile backer board that is quick and easy to install. The 100% waterproof XPS (extruded polystyrene) core is resistant to vapor pressure and does not support mold growth. The XPS core is sandwiched between tightly woven mesh and layers of cementitious coating. Install…

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    $1.00
  • PROVA BOARD PAN ASSEMBLY KIT®

    PROVA BOARD PAN ASSEMBLY KIT® includes all the components required to build a watertight shower pan assembly using PROVA BOARD® PLUS tile backer*. The kit is perfect for new construction or projects where existing drywall or cement board needs to be replaced. Save time withthis combination solution and rest assured…

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    $1.00
  • PROVA FASTENERS®

    PROVA FASTENERS® (screws and washers) offer a safe, simple and durable installation solution for PROVA BOARD® PLUS wall panels. Screws and washers sold seperately. They are used to fasten PROVA BOARD® PLUS panels to wood stud framing and other substrates suitable for screw connections To be used for installation of…

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    $1.00
  • PROVA NICHE®

    PROVA NICHE® is a pre-fabricated niche made of PROVA BOARD® PLUS. Can be used with PROVA-MAT® or PROVA BOARD® PLUS when installing a tiled shower. Useful & stylish accessory that can be used for built-in utility in showers, bathrooms, and kitchen backsplashes. Allows for more free and clear floor and/or…

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    $1.00
  • PROVA NICHE®

    PROVA NICHE® is a pre-fabricated niche made of PROVA BOARD® PLUS. Can be used with PROVA-MAT® or PROVA BOARD® PLUS when installing a tiled shower. Useful & stylish accessory that can be used for built-in utility in showers, bathrooms, and kitchen backsplashes. Allows for more free and clear floor and/or…

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    $1.00

   Where to Buy

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   Resource Center

Download product specs, installation guides, warranties,
and more in the Resource Center.

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