KERDI 54-sq ft Waterproofing Membrane

A sheet-applied polyethylene (PEVA) waterproofing and vapor-retarding membrane for tiled walls and floors. KERDI’s non-woven polypropylene fleece anchors securely in thin-set mortar to create a continuous, mold-resistant barrier in showers and wet areas.

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Key Features:

• Reliable Waterproofing: Sheet-applied PEVA membrane with vapor retarding performance to prevent water damage, mold, and mildew.
• Thin-Set Bonding: Non-woven polypropylene anchoring fleece on both sides for strong adhesion in mortar.
• Uniform Thickness: 8‑mil construction ensures consistent coverage and dependable protection.
• Fast Installation: Gridlined surface and wide roll options reduce seams and speed layout in showers.
• Versatile Use: Designed for walls and floors under ceramic or stone tile; compatible with thin-bed installations.

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Specifications Table:

Specification	Details
Coverage	54 sq ft (roll/variant referenced)
Material	Modified polyethylene (PEVA) core with non-woven polypropylene fleece on both sides
Function	Waterproofing membrane and vapor retarder
Thickness	8 mil
Installation Method	Bonded with thin-set mortar; tile installed using thin-bed method
Application Areas	Walls and floors; showers and other wet areas
Crack-Bridging	Limited crack-bridging capabilities
VOC Compliance	Complies with California Specification 01350 VOC requirements

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Frequently Asked Questions (FAQ):

Q: Can tiles be installed directly over KERDI?
A: Yes. Tiles can be installed directly on KERDI using the thin-bed method with thin-set mortar.

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Q: Is KERDI suitable for shower walls and floors?
A: Yes. It is ideal for waterproofing tiled surfaces on both walls and floors in showers and other wet areas.

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Q: What is the membrane thickness?
A: KERDI is 8 mil thick, providing uniform coverage across the installation.

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Q: Does KERDI help with vapor control?
A: Yes. It acts as a vapor retarder, helping manage moisture in wet environments.

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Q: What materials is KERDI made of?
A: A modified polyethylene (PEVA) core with non-woven polypropylene fleece on both sides.

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Seamless Spa-Worthy Waterproofing

KERDI drapes your shower in a quiet confidence—an elegant, gridlined veil that disappears behind tile yet defines the space. Its uniform 8‑mil profile and crisp orange tone speak to precision and craft. Pair it with large-format stone or sleek porcelain to celebrate clean planes and uninterrupted surfaces. This is the invisible luxury that elevates bathrooms from everyday to exceptional.

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Protect your next tile project with KERDI’s proven waterproofing—add it to your cart and build a shower that lasts.