Tub Surround Waterproofing

Waterproof tub surround systems protect one of the most moisture-exposed areas in a bathroom by creating a waterproof barrier behind wall finishes around the bathtub. ProLux Materials tub surround waterproofing systems are designed to manage water from splashes, condensation, and regular use, helping prevent moisture from reaching wall cavities, framing, and adjacent flooring. Installed beneath tile, wall panels, or decorative finishes, these systems provide long-term protection where tubs are most vulnerable to hidden water damage.

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$136.25 - $530.00

$136.25

$109.00 - $424.00

$109.00

PROVA Mat Waterproofing Membrane

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PROVA Mat Waterproofing Membrane is a thin, flexible, low-perm sheet membrane that creates a watertight barrier for tile showers, bathrooms, and we...

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$136.25 - $530.00

$136.25

$109.00 - $424.00

$109.00

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$31.19 - $866.88

$31.19

$24.95 - $693.50

$24.95

PROVA Joint Waterproofing Membrane Band

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PROVA Joint is a thin waterproof membrane tape designed to seal critical seams, corners, and transitions in PROVA waterproofing and underlayment ap...

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$31.19 - $866.88

$31.19

$24.95 - $693.50

$24.95

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$361.25 - $2,520.00

$361.25

$289.00 - $2,016.00

$289.00

PROVA Board Plus+ Waterproof Tile Backer Board

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PROVA Board Plus+ is a lightweight, waterproof high-density XPS foam tile backer board that replaces heavy, moisture-prone cement boards with a cle...

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$361.25 - $2,520.00

$361.25

$289.00 - $2,016.00

$289.00

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$27.44 - $299.94

$27.44

$21.95 - $239.95

$21.95

PROVA Seal Hybrid Silicone Waterproof Sealant & Adhesive

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PROVA Seal — the next-generation hybrid silicone shower waterproof sealant that combines the flexibility of silicone with the strength of an adhesi...

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$27.44 - $299.94

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$21.95 - $239.95

$21.95

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

PROVA Corner Inside Waterproof Corner

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Seal every corner with confidence. The PROVA Inside Preformed Waterproofing Corner delivers fast, reliable waterproofing protection where leaks and...

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

PROVA Corner Outside Waterproof Corner

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Waterproof every corner with precision. The PROVA Preformed Outside Corner provides quick, dependable waterproofing for outside-angle corners on sh...

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

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$9.94 - $87.44

$9.94

$7.95 - $69.95

$7.95

PROVA Pipe Seal Waterproof Pipe Collar

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The PROVA Pipe Seal is a prefabricated, waterproof pipe collar engineered to create a watertight, long-lasting seal around pipe penetrations in sho...

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$9.94 - $87.44

$9.94

$7.95 - $69.95

$7.95

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$24.94 - $104.38

$24.94

$19.95 - $83.50

$19.95

PROVA Fasteners Backer Board Screws 1-5/8"

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PROVA Fasteners are purpose-built screws engineered for attaching PROVA XPS backer boards and accessories to wood or metal substrates. Designed for...

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$19.95 - $83.50

$19.95

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$21.19 - $112.44

$21.19

$16.95 - $89.95

$16.95

PROVA Wide-Head Tile Backer Board Washers

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PROVA Wide-Head Washers are purpose-engineered to lock XPS foam backer boards securely in place without crushing the surface — delivering the stabl...

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$21.19 - $112.44

$21.19

$16.95 - $89.95

$16.95

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Complete Bathtub Waterproofing Systems

The area surrounding a bathtub is regularly exposed to splashing water and lingering moisture, especially at seams, corners, and transitions. Without proper tub surround waterproofing, water can migrate behind finished surfaces and into wall structures, leading to mold growth, staining, and gradual material deterioration.

ProLux tub surround waterproofing systems include waterproof wall panels and integrated surround components that function as a continuous waterproof layer behind finishes. These products are installed directly over wall framing or approved substrates, creating a moisture-resistant surface before tile or panels are applied. Rather than relying on surface caulking alone, the system manages water at the structural level.

Options for waterproofing bathtub walls allow installers to protect vertical splash zones and corner transitions around the tub. When seams and joints are properly sealed, the result is a watertight enclosure that supports durability and consistent performance in everyday bathing environments.

Why Bathtub Waterproofing Matters for Lasting Comfort

Seals the area behind the tub
Waterproofing around bathtub installations helps prevent splashes and condensation from reaching wall cavities and framing.
Protects tub surround seams and joints
Waterproof tub surround systems help block water at corners, edges, and transitions where leaks commonly start.
Provides a stable waterproof wall surface
Waterproof bathtub surrounds create a durable, moisture-resistant substrate for tile or wall panels.
Helps reduce mold and mildew risk
Limiting moisture penetration behind finishes helps reduce conditions that allow mold and mildew to develop.
Extends the lifespan of bathtub surrounds
Proper waterproofing protects wall materials and finishes, reducing long-term maintenance and repair costs.

Waterproofing a bathtub area is an essential part of modern bathroom construction and renovation. ProLux systems are designed to make sealing tub surrounds straightforward and reliable, helping protect bathroom structures while maintaining a clean, finished appearance.

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FREQUENTLY ASKED QUESTIONS

Do I need to waterproof behind my bathtub surround?

Yes. Water can penetrate seams, joints, and fastener points over time. Waterproofing behind a tub surround helps protect wall structures from hidden moisture damage.

What is the best way to waterproof around a bathtub?

Installing a dedicated waterproof bathtub surround or waterproof wall panel system helps ensure that seams, corners, and transitions around the tub are sealed against water intrusion.

Can bathtub waterproofing stop mold from forming?

Yes. By preventing moisture from reaching concealed wall areas, tub surround waterproofing helps reduce the conditions that allow mold and mildew to develop.

How long does a waterproof bathtub surround last before replacement?

When installed correctly and maintained, a waterproof bathtub surround can last as long as the bathtub itself, providing many years of reliable protection.