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I-Board

I-Board

„The pre-fabricated cladding for front wall installations.“

Product information

  • Simple and quick to install
  • wedi I-Board (1200 x 1245 x 20 mm) is a pre-fabricated element for the cladding of wall-mounted WCs. With a width of 1,200 mm, it can easily be adapted to virtually all needs.
  • Despite the the I-Board being light weight, it is extremely strong and stable (up to 400 kg weight load from a tile size of 10 x 10 cm).
  • The installed cladding board can be tiled directly without further pre-treatment.

All advantages at a single glance

Technical data of building board


Sound insulation DIN EN ISO 140-3 (at board thickness of 12.5 mm) Rw, P 23 dB
Fire behaviour EN 13501 E
Bending stress based on DIN 53293 3900 kPa (mean value)
Adhesive tensile strength 0,28 N/mm2
Weight: wedi building board (1250 x 600 x 4 mm)
wedi building board XXL (2500 x 1200 x 50 mm)
2,7 Kg
13,8 Kg
Linear coefficient of thermal expansion 0,017 mm/(mk)


Technical properties – Rigid foam

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
Associated modulus of elasticity EN 826 10 – 18 N/mm2
Thermal conductivity EN 13164 0,036 W/mK
Tensile strength EN 1607 0,45 N/mm2
Shearing resistance EN 12090 0,2 N/mm2
Shear modulus EN 12090 7 N/mm2
Bulk density EN 1602 32 kg/m3
Resistance to water vapour diffusion(μ) EN 12086 100
Water absorption under long-term immersion EN 12087 ≤ 1,5 Vol.-%
Capillar action 0
Linear coefficient of thermal expansion 0,07 mm/mK
Temperature limits -50°C / +75°C
Fire behaviour EB 13501 E
Propellant gas, carbon dioxide, GWP value 1

Product sizes

Order no. Designation Length x width x thickness
073964220 wedi I-Board, WC installation systems cover, including spaces for WC piping, brackets and screw set 1245 x 1200 x 20 mm

Areas of use wedi I-Board

  • The wedi I-Board is a completely pre-fabricated element for cladding wall-mounted toilets. With its width of 120 cm, this board can be easily adapted and adjusted to any individual needs. Despite it being light weight, it is extremely stable and robust.

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