Imperboard Tile backer board 600 x 1200 x 20 mm Thick x 1

Cement coated building board – Used for creating a waterproof surface suitable for fixing wall and floor tiles.

Manufactured to the highest specification, Imperboard is the benchmark for stable, impervious and durable tiling boards. There are many areas of application including uses in showers, steam rooms and swimming pools.

Versatile – Suitable for use on metal and timber stud work, or on existing floors and walls to cover unstable and uneven surfaces.

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Size600 x 1200 mm
Board coverage0.72 m²
Thickness20 mm
Compressive Strength300 kN/m2
Resistance to soft body Impact load3 x 120 Nm
Working Temperature Range-50 to +75 c
Fire behaviourClass E
Density36 kg/m3
Pack quantity1 piece
Pack coverage0.72 m²

Imperboard is made from a high-performance waterproof extruded polystyrene, coated with a glass fiber mesh and polymer cement mortar.

Cement coated building board - Used for creating a waterproof surface suitable for fixing wall and floor tiles.

Properties of Foam Component

PropertyAssesed toRating
DensityDIN 5342036 kg/m3
Thermal ConductivityEN 131640.034 Watt/mK
Compressive StrengthDIN 5342300 kN/m2
Water Absorption (Immersion)ISO 2896<0.2%
Water Vapour (Permeability)EN 120862.5m (20mm Board)
EU Controlled Substances ContentN/aNone

Backing Board Properties

PropertyAssesed toRating
Bond StrengthNS-EN 16070.55 N/mm2
Resistance to soft body Impact loadETAG 0033 x 120 Nm
Bending moment capacity - 12mmNS-EN 12089181 Nmm/mm
Bending moment capacity - 20mmNS-EN 12089340 Nmm/mm
Bending Stiffness - 12mmNS-EN 12089134 kNmm2/mm
Bending Stiffness - 20mmNS-EN 12089399 kNmm2/mm
Fire behaviour13501-1:2007+A1:2009Class E
EU controlled substances contentN/aNone
Working Temperature RangeN/a-50 to +75 c


Imperboard washersFor use in conjunction with fixing screws when securing Imperboard to walls and floors.

DescriptionDiameterBox Quantity
Stainless Steel35mm100

Dowel Fixings

Dowell FixingsFor fixing Imperboard to masonry walls or tiled surfaces. Ideal for use in wet areas. Use 9 Dowels per sqm of board.

Stainless SteelCoverageBox Quantity
Stainless Steel50 m²100
Stainless Steel90 m²100
Stainless Steel110 m²100


ScrewsSharp point, zinc plated drywall screws used with washers for mechanically fixing Imperboard to walls and floors.

Stainless SteelLength XBox Quantity
Drywall Screws251000
Drywall Screws321000
Drywall Screws451000
Drywall Screws501000
Drywall Screws65500
Drywall Screws75500

Documents available below are available to everybody for free to download. They can be open in high quality on your computer and be printed for further use.

Imperboard Tile backer board