fermacell Gypsum Fibreboard

fermacell Gypsum Fibreboard

fermacell - the original - was the first gypsum fibreboard on the market. The brand has stood for high-quality dry lining for more than 40 years.

fermacell is made from gypsum and recycled paper fibres. These two natural raw materials are mixed with water, without any other binders being added. The mixture is then pressed into stable boards under high pressure, dried, coated with a water repellent, and cut to the required sizes. The gypsum reacts with the water, penetrating and enveloping the fibres. This produces high stability and noncombustibility. Because of their material composition, fermacell boards are suitable for general construction, fire protection, and wet rooms.


  • Application areas

    Hotel bathrooms, for example, often require moisture resistance with acoustic insulation and fire protection. Hospitals will add impact resistance and flexibility in accepting wall mounted fittings to this. These criteria often result in solutions involving compromises. They can then only be achieved by using specialist boards and composite layers, often with costly and time consuming consequences.

    This in turn creates the potential for confusion, both at detailed drawing stage and on site. Additionally, multiple layering inevitably means thicker walls. fermacell offers a unique, single-point solution to these problems, combining high levels of fire resistance, acoustic insulation, and impact strength with exceptional screw holding ability.

  • Key advantages

  • Approvals

    Building inspectorate approval


    Construction material to DIN EN 13501-1

    Non-flammable, A2

    Board thickness

    10 /12.5 /15 /18 mm

  • Dimensional tolerances at constant humidity for standard board sizes

    Length, width

    + 0 / - 2 mm

    Diagonal difference

    ≤ 2 mm

    Thickness tolerance

    ± 0.2 mm

  • Characteristic values

    Gross Density

    1150 ± 50 kg/m³

    Water vapour diffusion resistance coefficient

    μ =13

    Thermal conductivity

    λ = 0.32 W/mK

    Specific heat capacity

    c = 1.1 kJ/kgK

    Brinell hardness

    30 N/mm²

    Swelling of thickness of 24 h immersion in water

    < 2%

    Coefficient of thermal expansion

    0.001 %/K

    Expansion / Shrinkage in response to 30 % change in relative humidity (20 ºC)

    0.25 mm/m

    Moisture content at 65 % relative humidity and 20 ºC air temperature

    1.3 %

    pH value

    7 – 8

    For further data and information please refer to the European Technical Approval ETA-03/0050.