Troldtekt® ventilation

Troldtekt ventilation has been specially developed for comfort ventilation in offices, schools and institutions. However, the solution is also an ideal choice for most buildings and most ventilation requirements.

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About Troldtekt® ventilation

Acoustic ceiling with concealed ventilation as an energy-efficient solution

A Troldtekt acoustic ceiling with concealed ventilation is an energy-efficient solution that ensures fresh air without draughts, noise or visible installations.

In a room with Troldtekt ventilation, fresh air flows in at low pressure. In practice, the solution is an acoustic ceiling that also functions as an air inlet surface. This means that you're spared the sight of visible ventilation ducts and fittings.

The ventilation ceiling comprises a combination of active and passive Troldtekt acoustic panels. The active panels allow air to flow through them, while the passive panels have an air barrier on the reverse side which prevents air from passing through them.

It is the size of the space and the need for ventilation that determines the distribution of the two panel types, but usually 10–20 per cent of the ceiling is made up of active panels. The injection surface is thus considerably larger than that of most traditional ventilation systems, where air flows in through ventilation ducts.

In this way, the air is distributed evenly in the room with a low risk of draughts. This is also due to good air distribution in the cavity above the Troldtekt acoustic ceiling combined with an appropriate loss in pressure through the acoustic panels. The system is flexible, and makes it possible to change both the air distribution and the level of ventilation as required.

Benefits of choosing 


Troldtekt® ventilation

We combine acoustics, design and energy optimisation

Good acoustics
Good acoustics
Troldtekt ventilation gives you class A sound absorption, even when the ceiling serves as a ventilation solution. Air flows through the active panels without light, and the acoustic panels ensure that reverberation in the space is minimised. Troldtekt ventilation is used in schools, offices and institutions where brilliant acoustics are crucial for wellbeing and functionality. You maintain acoustic quality while saving on building space.
Flexible design
Flexible design
With Troldtekt ventilation, you get a solution that combines comfort ventilation, acoustics and aesthetics – without visible ventilation ducts. This creates a uniform look that can be adapted to most types of buildings or spaces. Troldtekt ventilation is available with acoustic panels from our design series, so you can create an architecturally coherent ceiling without compromising on either functionality or acoustics.
Energy-efficient solution
Energy-efficient solution
Troldtekt ventilation provides comfort and cooling with low energy consumption. Because air is supplied at a low velocity directly through the acoustic panels, you save energy on fan power. You can use colder outside air than in traditional systems – up to eight degrees colder – without draughts. This provides a natural cooling effect, which normally requires both ventilation and cooling ceilings. You also save on heating, as the air does not need to be preheated. The solution supports energy-efficient buildings with fewer technical installations.
Flexible installation options
Flexible installation options
Troldtekt ventilation is installed as a suspended ceiling with a low suspension depth of just 200 mm (approximate figure). This ensures effective air distribution and allows other installations to be concealed. You can use Troldtekt ventilation in spaces with higher ceilings or in buildings with lower floor heights. The flexible suspension system also makes it easy to remove the panels, allowing easy access for replacement or inspection of installations above the ceiling.
Product data
Panel types

Two-layer acoustic panel

Variants

25 or 35 mm active panels

50 or 60 mm passive panels

Acoustic properties
Sound absorption class

Up to class A

Sound absorption coefficient (αw)

Up to 1.00 (depending on setup)

Sound measurements
Acoustics calculator
Fire resistance
Reaction to fire

B-s1,d0 (EN 13501-1)

Fire performance

K110/K210

In accordance with EN 13501-2


Cladding class

K110/B-s1,d0

(Class 1 cladding)

Dimensions and weight
Width

600 mm

Lengths

600 mm

1,200 mm

Thicknesses

75 mm (25+50 mm)

95 mm (35+60 mm)

Weight per m² (depending on structure and thickness):
Structure

Active panels

25 mm

Active panels

35 mm

Passive panels

50 mm

Passive panels

60 mm

Fine 10.6 13.9 12.6 15.9
Ultrafine 11.4 15.2 13.4 17.2
Extreme fine 11.7 15.5 13.7 17.5
Tolerances
Length

Active and passive panels

> 1,250: ± 2.0

≤ 1,250: ± 1.0

Width

± 1.0

Thickness

Length > 1,250: ± 2.0

Length ≤ 1,250: ± 1.0

Perpendicularity

± ≤ 2

Additional properties
Certified to withstand ball impact

Class 1A

Chloride content

≤ 0.06%

Formaldehyde

Class E1 (no measurable emissions)

Indoor climate

Low particle emissions

Low degassing after 10 days

Standards

EN 13964

Design
Colours
Natural wood

Natural grey

(FUTURECEM)

Clay 210

White 101

Grey 202

Grey 208

Black 207

Custom colours

Textures

Fine texture

1.5 mm

Ultrafine texture

1.0 mm

Extreme fine texture

0.5 mm

Edges and installation
Installation with screws
Screw installation in suspended C60 profile system (two layers of profiles: main and installation profiles)
Edge profiles

K0 (square edge)*

K5 (5 mm bevel)

K11 (11 mm bevel)

K0-U (square edge with U groove)

K5-F (with rebate)

K5-FU (with rebate for shiplap)

Installation in T profile system
Removable installation in exposed, suspended T24 profile system(*)**
Edge profiles

K0-S

K0-FS

K5-FS

*When installing in exposed, longitudinal T35 profiles and in suspended, concealed T35 profiles, the edge design of the panel is different on the short and long sides.
**600 x 600 mm panels are not compatible with exposed, longitudinal T35 profiles.
Removable installation in exposed, suspended T35 profile system(*)**
Edge profiles

K0-S

K0-FS

K5-FS

*When installing in exposed, longitudinal T35 profiles and in suspended, concealed T35 profiles, the edge design of the panel is different on the short and long sides.
**600 x 600 mm panels are not compatible with exposed, longitudinal T35 profiles.
Removable installation in concealed, suspended T35 profile system(*)**
Edge design

K5-FN

*When installing in exposed, longitudinal T35 profiles and in suspended, concealed T35 profiles, the edge design of the panel is different on the short and long sides.
**600 x 600 mm panels are not compatible with exposed, longitudinal T35 profiles.
Removable installation in exposed, longitudinal T35 profiles(*)**
Edge profiles

K0-S

K0-FS

K5-FS

*When installing in exposed, longitudinal T35 profiles and in suspended, concealed T35 profiles, the edge design of the panel is different on the short and long sides.
**600 x 600 mm panels are not compatible with exposed, longitudinal T35 profiles.
Documentation and manuals
Certifications
PEFC

PEFC/09-31-030

FSC®

FSC® C115450

Cradle to Cradle Certified®:

Gold level

Light reflection
Measurement

Light reflection for different types of Troldtekt panels (measured by the Danish Technological Institute).

See measurements
Downloads
Download all documentation

Get expert advice

Whether you're working on a large-scale building project or a smaller one, our experts are ready to provide advice and specifications.

Order product samples

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Inspiration for brilliant acoustics

Visit our inspiration hub to see stunning reference photos from a range of different buildings around the world.


Sluseholmen school

Read more here
Troldtekt acoustic ceilings in school buildings

Olympen Børnehus

Read more here
Troldtekt cement-bonded wood wool panels ensure superior acoustics in kindergartens

Ellehøjskolen

Read more here
Sound-absorbing cement-bonded wood wool panels from Troldtekt are often used as acoustic ceilings in schools and educational institutions

Skolen ved Sundet

Read more here
Sound-absorbing Troldtekt acoustic panels in school buildings

ٍFind additional

Troldtekt products

Explore other acoustic solutions from Troldtekt. Each product range offers its own strengths, from concealed ventilation and visual design to robust panels for special environments and building types.

Troldtekt® acoustic
Our classic Troldtekt acoustic panel. For ceiling and wall cladding in all types of buildings.
Troldtekt® Plus
Troldtekt Plus is a two-layer panel consisting of a Troldtekt cement-bonded wood wool panel with a laminated backing layer.
Troldtekt® agro
A specially developed acoustic panel to meet the requirements for diffuse ventilation in agricultural buildings.
Troldtekt® line
Troldtekt line offers an elegant and uniform ceiling surface with no visible joins. The product exudes the stylish reserve that is characteristic of wood batten ceilings.