Troldtekt®

Acoustic Panels

Superior acoustics, minimal thickness

Distributed by Rantau Kencana Sdn. Bhd.

A simple recipe for good acoustics

Troldtekt acoustic panels are made from Danish wood and cement. A new cement type makes it possible to choose acoustic panels with less CO2 impact.
The recipe for Troldtekt acoustic panels is as simple as it is viable and has been followed since 1935. By mixing wood and cement, we create cementbonded wood wool, which combines the strength of cement with the natural properties of wood.

Wood

The wood in Troldtekt acoustic panels is Norway spruce from Danish forests. In our production we only use certified wood, and we are certified according to the two standards for responsible forest management: FSC® (FSC®C115450) and PEFC. This means that we supply certified acoustic panels made from wood that can be traced back to responsibly managed forestry

Cement

The cement is what gives Troldtekt acoustic panels their strength and fire-protective properties without harmful chemicals – benefits that would be difficult to achieve with other binders.

We also offer Troldtekt acoustic panels containing FUTURECEM™ cement. FUTURECEM exploits the synergies between calcined clay and limestone filler, resulting in a cement product which has less CO2 impact. Throughout the product’s life cycle, the CO2 footprint of every Troldtekt FUTURECEM product is:
> 26 per cent lower than that of Troldtekt products based on grey cement
> 38 per cent lower than that

Troldtekt – A Quick Summary

100% Natural
50-70 Years Lifespan
10 Years Warranty
98% Humidity
Up to 1.0 NRC Value
Sound Abbreviation
Paintable
0 Maintenance
Termite Resistance
Partnering with the Troldtekt Distributor in Malaysia, Rantau Kencana Sdn Bhd

6 more good reasons for choosing Troldtekt

01. Good acoustics

A combination of wood and cement creates the unique Troldtekt surface structure which absorbs sound and reduces reverberation time in a room. Good acoustics are important for wellbeing and key for a healthy indoor climate.

02. Documented sustainability initiatives

Troldtekt acoustic panels have been certified under the internationally recognized Cradle to Cradle design concept in the gold category – documenting that they are free from harmful substances.

03. Effective fire performance

Every single wood fibre in a Troldtekt panel is encapsulated and protected by non-flammable cement. Troldtekt panels therefore have low flammability and emit little heat during a fire and almost no smoke.

04. Healthy indoor climate

Troldtekt cement-bonded wood wool is a breathable material which can absorb and release moisture. The acoustic panels do not contain allergens or harmful substances and have achieved indoor climate certifications under a number of schemes.

05. Robust and durable

Troldtekt cement-bonded wood wool has a long service life of at least 50 years, even when subjected to moisture or ball impact. The cement gives the acoustic panels their strength, while the wood makes the panels breathable and easy to work with.

06. Easy installation

Troldtekt acoustic solutions are easy to install – either directly onto battens or as a suspended ceiling in a profile system. Once in use the panels are simple to maintain, paint or repair. This can help extend their already long life.

01. Good Acoustics

Noise due to poor acoustics occurs when the reverberation time in a room is too long. To reduce it, you need to choose sound-absorbing materials and Troldtekt acoustic panels are an effective solution for this purpose
Reverberation time is a measure of the time it takes for sound to fade away in a room, for example when you clap your hands. Problems with acoustics arise because hard, smooth surfaces increase the reverberation time in a room as the sound is reflected directly back.
If the reverberation time is too long it becomes difficult to distinguish conversation from noise. It takes a long time for the sound waves to dissipate, often resulting in feelings of stress, irritation and discomfort.
With a short reverberation time, the soundscape becomes more precise and speech intelligibility increases significantly, because the sound ’dies out’ in the room faster. This requires a surface which is soft and uneven so that it can absorb the sound.

A ceiling on noise

The solution to noise and reverberation is therefore to shorten the reverberation time. You can do this by using materials that absorb sound instead of reflecting it. Soft furnishings such as curtains, carpets and rugs can absorb some sound, but this is often not enough.
It is therefore important that you choose materials with high sound absorption coefficients for large surfaces in a room. The open surface structure of Troldtekt acoustic panels installed on ceilings and walls means that the sound will quickly die out, producing really good acoustics.
While a concrete ceiling absorbs only 1-2 % of a sound, a suspended ceiling with Troldtekt will typically absorb 80-90 %.

Campus UC Syd, Aabenraa, Denmark

  • Troldtekt solution: Troldtekt acoustic
  • Colour: Natural wood
  • Structure: Fine (1.5 mm wood wool)
  • Photo: Tommy Kosior, Troldtekt A/S

Sergenten, music venue, Denmark

  • Troldtekt solution: Troldtekt acoustic
  • Colour: Black 207
  • Structure: Ultrafine (1.0 mm wood wool)
  • Photo: Zeni Architects

Google Headquaters, Dublin, Ireland

  • Troldtekt solution: Troldtekt acoustic
  • Colour: Natural wood
  • Structure: Ultrafine (1.0 mm wood wool)
  • Certification: Leed Platinium
  • Photo: Peter Würmli

With and without Troldtekt:
The difference it makes

You can significantly reduce reverberation time by choosing a Troldtekt acoustic solution. Whichever solution you choose, the open surface structure will absorb sounds that would otherwise reflect from the hard surfaces.

The way in which the Troldtekt acoustic panels are installed will have a bearing on the reverberation time.

In project buildings such as large offices, schools, institutions and other premises with special acoustic requirements, the optimum solution is usually to install a suspended Troldtekt ceiling within a profile system.

An ideal gap of 200-300 mm from the fixed ceiling is recommended so that there is a cavity above the acoustic ceiling.

In private homes, install Troldtekt acoustic panels directly beneath the 200-300 mm mineral wool and vapour barrier roof construction. However, installing Troldtekt under an existing ceiling may also be a viable option.

How much the reverberation time decreases with a suspended Troldtekt ceiling

SpecificationsMaterialsArea
Length (L): 9 mFloor: Cork, rubber or vinylTotal floor area: 63 m2
Height (H): 3 mWall: Rendered and painted masonry or concreteTotal wall area: 75 m2
Width (W): 7 mSolid wood door: 6 m2Total ceiling area: 63 m2
Volume (V): 189 m3Double glazing 3+12+3 mm: 15 m2

Concrete ceiling without Troldtekt

In the example, a bare concrete ceiling was used without the installation of sound absorbers.

4.69 sec.

Suspended Troldtekt Plus acoustic panels

Here, a suspended Troldtekt acoustic ceiling is installed beneath the concrete ceiling. The Troldtekt Plus acoustic panels are two-layer panels with a mineral wool backing. With a gap above the Troldtekt ceiling, the total installation height is 200 mm.

0.53 sec.

Suspended Troldtekt acoustic panels with 95 mm mineral wool

Here, too, a suspended Troldtekt acoustic ceiling has been installed beneath the concrete ceiling. The structure consists of classic 25 mm Troldtekt acoustic panels and 95 mm mineral wool above. With a gap above the mineral wool, the total installation height is 200 mm.

0.48 sec.

02. Documented sustainability initiatives

At Troldtekt, we are working strategically to progress towards a circular economy. The entire Troldtekt range of cement-bonded wood wool products is Cradle to Cradle Certified® at gold level.
Since 2012, Troldtekt’s business strategy has been based on the internationally recognised Cradle to Cradle Certified® product standard. The vision behind Cradle to Cradle Certified® is a world where manufacturers design their products for a circular economy – and where materials can become part of new cycles.
In practice, our systematic work with the standard means that we now have detailed information about all the substances contained in Troldtekt acoustic panels, right down to 100 parts per million (ppm).
Troldtekt acoustic panels are documented free of harmful substances and can therefore safely be returned to the biological cycle. In addition, waste from the production of Troldtekt panels is returned to the technical cycle and used by the supplier Aalborg Portland as a resource in new cement.

Cradle to Cradle Certified®

The entire Troldtekt range of cement-bonded wood wool products in natural wood and painted in standard colours is certified in accordance with the sustainable Cradle to Cradle Certified product standard at gold level.

SGBP Certified

The Singapore Green Building Product (SGBP) certification scheme is one of the key standards and benchmarks for building products in the construction industry. Products and materials certified by the SGBP are recognised under the Green Mark Scheme, Singapore’s national green building rating tool, administered by the Building and Construction Authority (BCA).
Further details of the SGBP listing for “Troldtekt” are published on the Singapore Green Building Council’s websitet: ttps://web.sgbc.online/public/product/search

03. Effective fire performance

The wood fibres in Troldtekt acoustic panels are enveloped in non-combustible cement. This means that the panels have integral fire protection and they achieve a fire reaction classification of B-s1, d0 when tested in accordance with EN 13501-1:2018.
The fire-retardant properties of interior ceiling and wall claddings have major impact on how a fire develops. In an emergency, it is important that the temperature, smoke concentration, heat radiation and other factors do not prevent people inside the building from reaching safety.
Troldtekt acoustic panels are made from wood and cement. Each individual wood fibre in Troldtekt is encased in cement, which has a fire-retardant effect – without harmful chemicals. This is why Troldtekt panels have low flammability and emit very little heat during a fire and almost no smoke.
Troldtekt acoustic panels are CE-marked under the European standard for cement-bonded wood wool (EN 13168) and the EU standard for suspended ceilings (EN 13964). In accordance with the two European standards, Troldtekt has been tested for reaction to fire in accordance with EN 13501.

Singapore Certificate of Conformity (SG CoC) Troldtekt acoustic panels are approved for use in Singapore, according to the Singapore Civil Defence Force’s (SCDF) requirements. Auditors perform yearly tests on random samples to ensure continued fire performance, according to previously used tests. This product is certified to the EN13501-1:2018 Test Standard.

Further details of the SG CoC listing for “Troldtekt” are published on Setsco’s Certificate of Conformity Directory website at: https://cams.setsco.com/ccs/

To view the listing, search keyword “Troldtekt” under “Brand”, and select “Fire Safety Products” under “Category”. Read more about the SG CoC on the SCDF website, or contact us for clarifications.

04. Healthy indoor climate

We live our lives in buildings where we relax, study, go to work, play sports or eat out. We believe it is crucial to focus on the health of the structural environment.
Poor air quality and acoustics, for example, can affect productivity in the workplace – and learning in schools. In addition, an unhealthy indoor climate can lead to illness, allergies and generally impair well-being.
Troldtekt ensures good acoustics, which are an important part of a healthy indoor climate. At the same time, Troldtekt is documented free of harmful substances that can contaminate the indoor climate. In addition, the acoustic panels can both
absorb and emit moisture, which can make the indoor climate feel more comfortable.

05. Robust and durable

Troldtekt has a long service life and high moisture tolerance. Troldtekt
acoustic panels are tested to withstand hard ball shots

A combination of wood and cement, Troldtekt cement-bonded wood wool is a sturdy material with a long product lifespan of at least 50 years after installation. The setting and curing process transforms the cement in the panels into concrete, which adds strength to the material. The properties of the wood make the material breathable and permeable.

Long-lasting materials make a positive difference to the environment and the economy generally. In a life cycle assessment (LCA) of a building, much of its environmental impact usually occurs in the raw material and production phase. When a material can last for at least 50 years, the impact is spread over a long period.

Absorbs and gives off moisture
Troldtekt panels can absorb and release moisture and are therefore ideal for use as ceiling and wall cladding in wet rooms, such as bathrooms, wellness areas and swimming baths. Troldtekt acoustic panels can also be used outdoors, for example, under eaves.

The Danish Technological Institute has documented that Troldtekt acoustic panels are suitable for installation in spaces with:

> Ambient humidity up to 98% (+/- 2%)
> High temperatures up to at least 40°C.

Ball impact tested
Ceiling and wall cladding in sports halls and similar spaces are subject to arduous conditions. For example, cladding is often hit by balls travelling at high speed.

MPA in Stuttgart has certified Troldtekt panels to withstand ball impact in accordance with German standards. During a ball impact test, a regulation handball hits the wall cladding at a speed of 22.5 m/s or 81 km/hour. A wide range of Troldtekt solutions have been tested and approved as ceiling cladding for use in sports facilities.

06. Easy installation

There are a number of methods for installing Troldtekt acoustic panels on wooden battens or in profiles. After installation,the panels are easy to maintain and repair so that they will last even longer.

Troldtekt acoustic panels are easy to handle. From the panels' arrival at the building site and
processing them through to their installation. Troldtekt cement-bonded wood wool is suitable for
screw-mounting. The material is easy to work with. The material accommodates simple workflows and offers considerable flexibility during installation.

Troldtekt cement-bonded wood wool can last for at least 50–70 years. If you wish to extend the service life of your panels, you are advised to invest in light cleaning, make minor repairs and apply a fresh coat of paint.

Multiple installation options
Troldtekt acoustic panels can be installed in several ways:
> with screws or concealed KN brackets on wooden battens
> in a suspended, concealed C60 profile system
> in an exposed or concealed T-profile system (no tools required)

Troldtekt screws are specially designed for installing Troldtekt acoustic panels. The screws are painted in colours that match the panels and the screw head has the same visual structure as the Troldtekt panels.

Easy to clean and repaint
Once installed, Troldtekt acoustic panels are easy to maintain for an even longer service life. Troldtekt acoustic panels can be painted repeatedly with a spray paint at no risk of impairing their acoustic properties.

The longer your Troldtekt panels remain in service, the more resources you save – for the benefit of both the economy and the environment.

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