Troldtekt contributes to a good swimming experience

Ceiling and walls clad with Troldtekt acoustic panels effectively absorb the sounds of splashing, shouting and playing, thus contributing to pleasant acoustics in swimming centres.

Cement-bonded wood wool panels are also durable, with a natural resistance to moisture. The flexible design options also offer considerable architectural freedom.

Choosing materials is a particularly challenging process for architects designing swimming centres. Of course, the materials have to aesthetically match the architectural idiom. But a number of functional requirements also need addressing.

Swimming centres are usually large spaces, high-ceilinged and with many glass or concrete surfaces. In combination with the excited shrieks of children having fun in the water, this calls for acoustically exacting solutions. It is therefore important that the large ceiling and wall surfaces are clad with materials that have a high absorption coefficient – so they effectively soak up the sounds.

Environments with constant high humidity also place additional demands on the strength and moisture tolerance of the materials. Finally, the expansive walls often need a very carefully conceived visual design.

Acoustic panels with natural benefits

Troldtekt panels are chosen for many swimming centres – and outdoor baths – because the natural advantages of the cement-bonded wood wool panels perfectly match the requirements. You can read about five reasons why Troldtekt is an ideal choice below.

Superior acoustics

The open structure of Troldtekt acoustic panels absorbs sound effectively. The result is shorter reverberation times, minimising unpleasant noise – in the swimming pool areas and in the associated facilities (changing rooms, café etc.).

>> Read more about good acoustics

Natural strength

Cement-bonded wood wool retains the essential qualities of the components used to produce it – the strength of cement and the natural breathability of wood. Troldtekt acoustic panels are moisture-tolerant and therefore extremely suitable as acoustic ceilings in wet rooms. The panels cannot rot and do not attract fungal growth or other microorganisms.

The original Troldtekt panels are dimensionally stable and retain their flatness – even in humid environments – so that they do not warp over time. The Danish Technological Institute has found that the dimensions of Troldtekt panels only change by 0.005 per cent if the humidity in a room changes by one percentage point.

According to Troldtekt’s Environmental Product Declaration (EPD), the acoustic panels have a life span of at least 50 years. However, Troldtekt has been producing panels since 1935, and experience has shown that the technical characteristics of the panels last for at least 75-80 years.

>> Read more about natural strength

Healthy indoor climate

Troldtekt acoustic panels also qualify for the best indoor climate label categories according to Danish Indoor Climate Labelling, in terms of both degassing and particle emissions.

Since Troldtekt acoustic panels can both absorb and release moisture, they help to maintain an indoor climate with the right humidity. Humidity affects the users’ experience of comfort in a room.

>> Read more about healthy indoor climate

Effective fireproofing

Wood alone is an organic and flammable material, but every single wood fibre in a Troldtekt panel is encapsulated and protected by cement. Troldtekt panels are therefore fireproof without the use of any fire retardant or dangerous chemicals.

Troldtekt acoustic panels are fire classified under European standard EN 13501. Troldtekt acoustic panels are classified as B-s1,d0, which denotes the material’s reaction to fire. In practice, this means that Troldtekt panels are only weakly combustible and weakly heat and smoke-emitting.

>> Read more about effective fire protection

Flexible design

Troldtekt panels offer a number of different design options. Through special installation, colours or CNC machining, the panels can be used to create a unique look on large ceiling and wall surfaces, adding to the whole as sound-absorbing design elements.

Troldtekt design solutions come with the same great technical properties as the classic Troldtekt acoustic panels.

>> See the design options

Proven sustainability initiatives

Troldtekt is certified in the silver category under the internationally recognised Cradle to Cradle scheme.

The certification was attained in part because the panels contain no substances that are harmful to humans or the environment. They can therefore return to the biological cycle as nutrients, or to a technical cycle as a raw material in cement production.

Ramboll has also outlined how Troldtekt specifically contributes points to areas such as total cost of ownership, indoor climate and materials in the leading sustainability certifications – DGNB, LEED and BREEAM.

>> Read more about Proven sustainability initiatives

Simple installation

Troldtekt panels are installed directly on battens on ceilings and walls or using profile systems such as suspended ceilings – with concealed or visible profiles. When installing the panels, only a few screws are needed per panel. There is no need to use filler or paint after installation.

The Troldtekt series includes specially designed screws that match the panels’ standard colours and structure. If you choose Troldtekt panels in custom colours, we can supply extra paint so you can dab the screws in the same colour.

Troldtekt screws are corrosion-resistant and salt spray-tested in a highly corrosive atmosphere. The structure screw for steel installation is also available in an extra corrosion-protected version (C5-rated) for particularly aggressive environments. This means that for suspended Troldtekt acoustic ceilings in swimming centres, it is possible to choose a complete profile system where both the profiles and screws are C5-rated.

>> See more about installation

Inspiration for colours and function

On this website you will find lots of inspiring cases showing how Troldtekt panels are used in swimming centres and outdoor baths.

You can also find inspiration in the gallery below.


Stenungsund Arena

Stenungsund Arena is a dynamic sports centre and meeting place in southern Sweden.
Troldtekt, Hallenbad Münster-Kinderhaus

Indoor pool Münster

28 July 2014 is a day the residents of the German town of Münster will not easily forget. That was the day when torrential rain, unprecedented in Germany, flooded the city. One of the many buildings affected by the flooding was the community centre in Münster’s Kinderhaus district.
Troldtekt Vestre Fjordpark

Vestre Fjordpark

Vestre Fjord Park in Aalborg has become a popular destination for people looking for somewhere to enjoy the great outdoors and specific outdoor activities. The newly restored lido has just won yet another prize - an Architizer A+Award - for the way in which the architecture strikes a perfect balance with the natural environment.
Troldtekt, Eura swimming baths, Finland

Eura Leisure Centre

Eura is located in western Finland. The area is one of the most distinguished places in Finland in terms of prehistoric findings and archaeological remains. Now the region also has a new, colourful swimming and sports centre.
Troldtekt, Gigantium


Gigantium is a sports and cultural centre in Aalborg comprising a large arena, sports halls and two ice-skating rinks. The newly built swimming baths bring the total area of the complex to 35,000 square metres.
Ceilings with Troldtekt acoustic panels in swimming pool


It was with a degree of melancholy that the employees of the outdated swimming pool in Neustadt am Rübenberge packed up the last of the equipment for the move. However this feeling was outweighed by the joy of being able to ensure fun, entertainment, smooth operation and safety for all guests at the new indoor and open-air pool with sauna.