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KERDI is the orange fleece-backed waterproofing sheet that goes under tile in showers, tub surrounds and wet floors. It bonds to drywall, backer board or KERDI-BOARD with unmodified thin-set, and seams are sealed with KERDI-BAND to keep the assembly continuous. It is the core of the Schluter shower system, and pros favor it because the thin, flexible sheet tiles directly over without building up thickness. Rivals like liquid roll-on membranes cost less on small jobs but need multiple coats and cure time; sheet membranes like this one give a consistent, inspectable thickness in a single pass.
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Tile setters and experienced DIYers rate KERDI highly for reliable waterproofing and easy tiling over the sheet. Complaints center on the fussy thin-set embedding and the extra cost of band and corners.
KERDI is an orange, fleece-backed waterproofing membrane that goes under tile on walls, floors, and curbs. It bonds to the surface to form a watertight layer that keeps water from reaching the substrate. It is a thin, flexible sheet and is the core of the Schluter shower system.
This roll covers 108 sq ft. Bond the membrane to KERDI-BOARD, backer board, or drywall with unmodified thin-set mortar. Lap the seams, then tile directly over the top. Use KERDI-BAND at corners and changes of plane to keep the assembly continuous and leak-proof.
It is used in wet areas such as showers, tub surrounds, and floors.
