Troldtekt^® acoustic panels

The combination of wood and cement creates Troldtekt's unique sound-absorbing properties, which ensures good acoustics in architecture and contributes to a good indoor climate.

Product news:

Troldtekt Plus 25

Welcome to Troldtekt Plus 25 - the obvious choice for schools, offices and other types of buildings with high acoustic requirements.

With a panel thickness of only 25 mm, the panel absorbs up to 90 percent of the sound (αw = 0.90) when installed as a suspended ceiling. This corresponds to Class A sound absorption.

Troldtekt Plus 25 is a two-layer panel with a thin layer of acoustic fleece on the rear to ensure enhanced acoustic performance. The solution is the same size and weight as a traditional 25 mm Troldtekt acoustic panel. This makes it easy to stack, cut, lift and assemble on site.

More about Troldtekt Plus 25

Ceilings with Troldtekt acoustic panels in office buildings

Topical theme

Renovation and transformation

Each time we release ten tonnes of CO₂ into the atmosphere, more than one tonne comes from the production and handling of building materials. One of the keys to building with consideration for the environment therefore lies in extending the service life of materials, for example by renovating old buildings or transforming them for completely new purposes.

On this feature page, you can read about the benefits of renovating and retaining materials in architecture. You'll also gain insight into a number of successful transformations with a particular focus on the use of recycled materials.

Read more about how Troldtekt has worked with return models that can give its acoustic panels one or more extra life cycles. High ambitions within the circular economy have resulted in concrete recycling schemes for cement-bonded wood wool waste from both Troldtekt’s own production and from building sites.

Renovation and transformation

Other themes

Architecture for seniors

Demographics are moving towards a greater proportion of elderly people in the population. This calls for more flexible, high-quality architecture.

Wood in construction

Wood is a healthy, elegant and flexible natural material that makes a positive contribution to the carbon accounts. More about wood as a building material here!

Architecture in the big cities

This Troldtekt theme page takes you on a virtual trip to look at architecture in Copenhagen, and in Denmark’s second-largest city Aarhus. Enjoy the tour!

Healing Architecture

Architecture, design & materials can have an impact on the treatment of body and mind. Light, air and acoustics all play a role. Read about healing architecture

Design and Innovation in Architecture

Innovation must ensure that architecture is constantly evolving – functionally and aesthetically. Most people spend 80-90 per cent of their time indoors, and when function and design complement one another, it can make a big difference to people’s daily lives and well-being.

Ceilings with Troldtekt acoustic panels in office buildings

Renovation and transformation

Construction accounts for up to 40 per cent of the world’s resource and energy consumption and CO2 emissions. Using healthy, durable materials and the transformation of buildings offer potential for better resource utilisation.

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Latest news

New solution from Troldtekt: Acoustic fleece ensures good acoustics and easy handling

Both a building's users and its builders developers have a good reason to get excited about the new Troldtekt Plus 25 panels. This specially developed acoustic panel sets a high standard for both sound absorption and building efficiency.

New life for recycled Troldtekt panels at innovative architecture workshop

Architecture is also about experimentation. This was evident when 50 budding architects participated in the Paraply Architecture Workshop in Copenhagen. The focus was on creating creative and climate-conscious projects based on residual and recycled materials, including Troldtekt acoustic panels.

Troldtekt honoured for transparent CSR report

Troldtekt’s CSR report for 2023 has been honoured in the best class – Excellence Class – at the ESG Transparency Award ceremony. The German consultancy firm EUPD Research is behind the award, in which Troldtekt scores high on good corporate governance practices, among other things.

Giving new value to building site offcuts and waste

In collaboration with North Trade House, Troldtekt ensures that contractors and timber merchants can take back clean construction site offcuts and waste from Troldtekt cement-bonded wood wool panels. The returned material is used as a resource in new cycles.

Building Green: Step into the circles of the future

What does the construction industry look like when it lives up to the Paris Agreement and climate science? This is the theme of Building Green in Copenhagen, which will take place on 30-31 October 2024. Troldtekt is one of the partners at a Cradle to Cradle themed stand, where you can experience the circular economy in practice.

Spectacular buildings nominated for the Building Awards

Denmark’s tallest wooden building and a head office made from 90 per cent recycled and reused materials. The courage to take new paths to reduce their carbon footprint is a common thread that runs through several finalists of the Building Awards. Troldtekt is part of the interior in both the high-rise building TRÆ and Tscherning’s head office.

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Find inspiration for good acoustics

Visit our inspiration universe and see the beautiful reference images from a number of different buildings around the world.

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Six good reasons to choose Troldtekt®

Troldtekt, Grevegårdsskolan, Sweden

Good acoustics

Good acoustics are important for well-being. Learn about the factors that impact room acoustics, what the acoustics concepts mean and why they are important.

Documented sustainability initiatives

Throughout the product cycle, Troldtekt places emphasis not only on minimizing the environmental impact, but on optimizing resource consumption and processes.

Easy installation

There are a number of simple methods for installing Troldtekt on wood battens or in profiles. The panels are easy to maintain, which ensures a long service life.

Robust and durable

Troldtekt wood wool acoustic panels are suitable for use in wet rooms and sports halls. The panels can absorb and release moisture and are ball impact tested.

Troldtekt Himmel og Hav

Effective fire performance

The fire characteristics of interior ceiling and wall cladding have a major impact on how a fire develops.

Healthy indoor climate

Most people spend most of their lives indoors, and much of this time is spent at work. It is therefore vital that the buildings we are in have a good indoor climate which does not cause irritations or affect our health or ability to work.

Official Troldtekt brand video

Web tools and documentation

Product configurator

The Troldtekt product generator provides a quick overview of all available Troldtekt products.

Download materials

Here you will find brochures, data sheets, sound measurements, assembly instructions, magazines, CSR reports etc., which you can download in pdf format.

Acoustics calculator

The Troldtekt acoustics calculator provides you with a quick overview of the acoustics in a room.