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Curbs and Ramps

Curbs and Ramps

Available in several options for shower entry designs where transitions are required, wedi curbs and ramps can be installed with wedi Fundo shower bases, as well as conventional mortar bed systems. Waterproof and versatile, wedi Curbs and Ramps may be tiled before any glass doors, panels or glass block is installed and can carry weight of up to 480 lbs./ft. Epoxy glue is recommended instead of screw fasteners when installing shower door tracks.

wedi Curb Overs are designed to water-proof over existing 2’ x 4’ wood constructions. A conventional PVC pan liner is sandwiched inside between the 2’ x 4’ and the wedi Curb Over. The wedi Curb Over will provide additional water-proofing and square corners for a perfect tile job. No fasteners should penetrate the curb except on the vertical outside of the shower. Attach with thinset mortar only. Please install curb over in accordance with the TCNA Handbook detail.

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Technical properties for curbs and ramps


Curbs and ramps Base Material XPS/ Extruded Polystyrene Foam Core covered with fiberglass mesh fully embedded in a cement based resin coating
Surface Burning Characteristics; ASTM E84-04 and UL 1715 Passed
Tensile Strength ( Thinset Mortar to wedi Coating to Foam); ASTM C297 0.45 N/mm²
Shear Strength (Thinset Mortar to wedi Coating to Foam); within ANSI 118.10-1999; wet conditions 0.37 N/mm²
Flexural Strength; ASTM C947 4.32 N/mm²
Waterproofness of Assembled System; IAPMO PS 106-2015 Passes
Drain Assembly Kit, WaterMark Passes
Temperature Exposure Limits -50 C to + 80 C
Long-term compressive strength (50 years) ≤ 2% compression EN 1606 0.08 N/mm²
Compressive resistance or compressive strength at 10% compression EN 826 0.25 N/mm²
Fungus & Bacteria Resistance No Growth , Passes
Robinson Floor Test; ASTM C627 *with 200 x 200 x 6 mm Porcelain Tile Heavy Duty Commercial Use, Passes
R-Value, ASTM C518 25mm of wedi foam = 4.3

Product sizes

Order no. Designation Length x width x thickness
US3000032 wedi Hob Full Foam “LEAN“ (Square Edges) 50 x 1200 x 90 mm
0743190007 wedi Hob Full Foam “LEAN“ (Square Edges) 50 x 1524 x 90 mm
0743190008 wedi Hob Full Foam “LEAN“ (Square Edges) 50 x 2500 x 90 mm
073736517 wedi shower ramp 305 x 1524 mm, sloped 38.1 to 6.35 mm

Areas of use curbs and ramps

  • New Construction of Residential/Commercial use buildings
  • Renovation in Residential/Commercial use buildings
  • For barrier free or curbed installations
  • For customized or standard tiled showers
  • Over wooden or concrete substructures

Optional articles

Curbs and Ramps

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Impressions of Curbs and Ramps