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Products/Wet Rooms & Bathrooms

Schluter KERDI Waterproofing Membrane

Bonded waterproofing membrane applied directly over tile adhesive mortar beds or cement board. The thin polyethylene sheet with fleece laminate on both faces is embedded in unmodified thinset and provides a continuous waterproof layer under tile before grouting. Compatible with Schluter KERDI-DRAIN and KERDI-BOARD substrate panels.

£12–£20 per m²Manufacturer Spec SheetCheck this product price

Why care homes use this

In care home wet rooms, the consequence of waterproofing failure is structural — moisture migrates into subfloors, joists and walls, creating infection risk and expensive reinstatement work. KERDI provides a tested, ETA-certified tanking system that gives contractors and responsible persons a documented compliance route under BS 8102 and the Tile Association's guidance on wet areas.

Key specification

Polyethylene waterproofing membrane with fleece laminate bonding faces; thickness 0.15 mm; ETA-certified (ETA-08/0080); compatible with ceramic, porcelain and natural stone; width 75–200 cm rolls.

Where to source it

Schluter SystemsTile MountainDirect Tile Warehouse

Standards, guidance & manufacturer resources

Schluter KERDI product pageETA-08/0080 European Technical AssessmentTile Association wet area waterproofing guidanceBS 8102 protection of below-ground structures

Specification resources

WordPre-Occupation Property Condition Checklist

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