4mm Tile Backer Board

4mm Tile Backer Board designed to provide a level and extremely firm surface – ideal for tiling directly onto.

Can be used as an intermediate tiling layer over Wundatherm heating boards.

Product Information

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U03 - TILE BACKER BOARD 4mm Tile Backer Board designed specifically to provide a strong, level and extremely firm surface - ideal for tiling, can be used over Wundatherm heating boards if desired. Providing an intermediate layer these tile backer boards should be bonded in place using Mapei S955 adhesive - available from Wunda. When fitting carpets/vinyl as a final floor finish onto Overfloor heating boards we would recommend a light renovation screed or fixing a ply deck before carpeting rather than our Tile backer board. Flexible and easy to handle - simply cut the board to shape where necessary. It can be dry fitted as a floating surface with taped joints or alternatively bonded directly to the floor heating panels. Backer boards are manufactured from polyester fibres and synthetic resin.
  • Water absorption (28 day) ≤ 3%
  • Floor alignment ≤ 4mm
  • Acoustic isolation (raw material) up to 18dB
  • Dimensions 1200mm x 600mm x 4mm
  • Weight 5m² = 0.420g (+/-5%)
  • Thickness 4mm
  • Temperature resistance (48C/48h) ≤ 0.85%
Weight2.8kg /m2
Acoustic Suppression13dB
MaterialPolyester Fibres & Synthetic Resin
Thermal Resistance0, 042 m2K/W

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