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wedi building panel

wedi building panel

„Cut, shape, glue.“

wedi building panel systems

Available in a wide variety of thicknesses and sizes, wedi Building Panels are compatible with virtually any stable substructure. wedi Building Panels are lightweight, internally waterproof and dimensionally stable, making them fast, clean and simple to work with. The blue waterproof core is CFC-free, made from waterproof extruded polystyrene foam, reinforced with fiberglass mesh on both sides and coated with synthetic polymer resin mortar which fully embeds the mesh layer resulting in the panel's strength and the ability to develop highest adhesion strength to virtually any type of thinset mortar. The embedded mesh eliminates the risk of delamination of installation layers. The wedi Building Panel combines the benefits of the latest manufacturing technology and material quality with sound and traditional benefits our trades enjoy.

The wedi Building Panel can be tiled with all types of ceramic, glass or stone tile whether they are mosaic or large format tiles. Especially large and thin tile benefits of the durability of the wedi Building Panel and the even surface it provides.

  • 100% waterproof due to its extruded polystyrene ( closed cell) foam core
  • 100% mold and mildew proof due to the product ‘s natural composition.
  • Strong and ready to tile surface made of reinforcing fiberglass mesh fully embedded in a cement based resin coating.
  • High insulating properties due to its extruded polystyrene core giving tile or stone finish surfaces a warmer touch.
  • Extremely lightweight due to its rigid foam core benefitting installations over older structures and fast and safe handling on construction sites.
  • Easy and clean to cut to size using a utility knife.
  • No limitation to use of tile sizes or the type of tile
  • No limitation to use of cement based thinset mortars and grouts. Product works perfectly with polyurethane or epoxy based grouts.
  • Replaces cement boards plus the added waterproof membranes.
  • Available in multiple sizes and thicknesses for use as floor underlayment, wall and ceiling backer board, over countertops, tub decks, and for building seats or tileable furniture without need for any support made of wood or steel.

Technical data of building panel

Nominal thickness in mm

R-value

U-value W/m2 x K

4 0.68 1.47
6 1.03 0.97
10 1.72 0.58
12.5 2.15 0.47
20 3.44 0.29
50 8.60 0.12

wedi Building Panel Material Composition 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 Passes
Tensile Strength (Thinset Mortar to wedi Coating to Foam); ASTM C297 0.45 N/mm²
Shear Strength (Thinset Mortar to wedi Coating to Foam); ANSI 118.10-1999; *wet conditions 0.37 N/mm²
Flexural Strength; ASTM C947 4.32 N/mm²
Waterproofness of Assembled System; CodeMark Passes
Drain Assembly Kit, WaterMark Passes
Temperature Exposure Limits -58°F to + 175°F
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
Max. hanging load when wedi is used on the ceiling 88kg/m²
Fungus & Bacteria Resistance No Growth, Passes
Robinson Floor Test; ASTM C627 *with 200 x 200 x 6mm Porcelain Tile Heavy Duty Commercial Use, Passes
R-Value, ASTM C518 25 mm of wedi foam = 4.3

Product sizes

Order no. Designation Length x width x thickness
010000004 wedi building panel 4 mm 1250 x 600 x 4 mm
010718006 wedi building panel 6 mm 1524 x 914 x 6 mm
010717064 wedi building panel 12.7 mm 1524 x 914 x 12.7 mm
010716316 wedi building panel 16 mm 1524 x 914 x 16 mm
010000020 wedi building panel 20 mm 2500 x 600 x 20 mm
010000040 wedi building panel 40 mm 2500 x 600 x 40 mm
010000050 wedi building panel 50 mm 2500 x 600 x 50 mm

Area of application wedi building panel

  • The possibilities are endless when it comes to wall, floor not least because of the wide range of different thicknesses.
  • They can be applied to practically any type of substrate. Whether it's old tile coverings, adhesive or non-adhesive substrate, lush mounting onto existing plasterboard or dry lining. Thanks to the simplified processing, wedi building panels can handle all manner of challenges on the building site.
  • New Construction of Residential/Commercial use buildings
  • Renovation in Residential/Commercial use buildings
  • Wet areas such as showers and steam baths
  • Over wooden or concrete substructure

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