Innovation at the
Service of Acoustics
Optimal acoustics through Spalek micro-perforated stretch ceilings
Good acoustics are essential for wellbeing, concentration and the overall atmosphere of a space. Spalek acoustic ceilings combine cutting-edge technology with elegant design — creating spaces that are acoustically convincing and aesthetically outstanding. Using micro-perforated membranes and fabrics, sound waves are absorbed in a targeted manner, reverberation time is reduced, and speech intelligibility is significantly improved — all without visible technical elements or intrusive acoustic devices.
Modern Living Spaces
Elegant Stretch Ceilings for Contemporary Interior Design
Commercial Premises
Professional solutions for prestigious business premises
Luminous ceilings
Uniform illumination of large areas
Restaurants and Hotels
Innovative lighting solutions for a special atmosphere
Sophisticated technology –
noticeable effect
How Spalek Acoustic Ceilings
Absorb Sound and Reduce Reverberation
Our acoustic stretch ceilings are made from finely micro-perforated PVC membranes or fabric. With up to 400,000 micro-perforations per square metre, sound waves are converted into thermal energy, making the room noticeably quieter.
Three combined principles of action ensure maximum absorption performance:
- Dual absorption effect: sound first strikes the membrane and is absorbed. It then reflects off the existing ceiling above and is absorbed a second time.
- Micro-perforations: the tiny openings absorb mid and high frequencies particularly effectively.
- Absorbing material: acoustic fleeces installed behind the ceiling reinforce the effect and optimise sound quality.
The result: a balanced, pleasant acoustic environment, regardless of the size or configuration of the room.
Acoustic Solutions
for Every Space Type
From office to spa — systems tailored to every function
Whether a modern office, a restaurant, an educational facility or a wellness space, Spalek acoustic stretch ceilings adapt to all architectural and functional requirements. They improve speech intelligibility, bring greater calm and promote wellbeing — without any compromise on design.
Measurable Performance
Spalek acoustic stretch ceilings
are distinguished by their strong
sound absorption capability
The acoustic effectiveness of a ceiling is defined by the αw value (weighted sound absorption coefficient), which describes a material’s ability to absorb sound per square metre. A value of αw = 1.00 represents maximum sound absorption, while αw = 0.00 means no absorption at all.
Applied across the full ceiling surface, this absorption capability delivers an overall room acoustic performance that is difficult to achieve with conventional wall absorbers or isolated suspended elements.
Depending on the configuration, degree of micro-perforation and ceiling structure, Spalek acoustic ceilings achieve excellent αw values between 0.65 and 0.80 — placing them among the most effective acoustic solutions in their category.
The combination of a micro-perforated membrane, an optimised plenum and an acoustic fleece allows the system to be precisely tuned to the acoustic requirements of each space — from conference rooms and restaurants to large reception halls.
Solution No. 1: Individually stretched Spalek
PVC cloth with micro-perforation
Solution No. 2: Stretched Spalek PVC cloth with
micro-perforation, with absorbent material
Understanding Acoustics
Before You Build
Uwe Ternieden
Graduate Engineer in Spatial Planning
Lecturer in Acoustics — Chamber of Architects
Certified Office Advisor (MBA)
For many projects, it is essential to be able to reliably assess the acoustic quality of a space before construction begins. This is precisely why Spalek offers its commercial clients a unique service. In collaboration with our in-house acoustician Uwe Ternieden, we digitally model each space and produce a professional acoustic assessment.
This analysis is based on recognised calculation methods in accordance with DIN 18041 and shows in detail the behaviour of reverberation times, absorption surfaces and sound distribution — both before and after the installation of a Spalek acoustic ceiling.
A particular highlight: we simulate the room’s sound using a listening sample. This makes it immediately perceptible just how much reverberation is reduced — and how much calmer, clearer and more pleasant the space becomes with our micro-perforated acoustic ceiling.
All calculation and analysis methods used comply with the standards of TÜV Rheinland, within whose certification programme Uwe Ternieden also works as an examiner.
Previously without absorber (1.8 s)
afterwards with absorber (0.4 s)
Acoustic
Knowledge
for Architects
with
TÜV Certificate
Interested in deepening your knowledge of acoustics?
Spalek offers a seminar specifically designed for architects:
“Sound: Curse and Blessing in Architecture”
— a full day of intensive, practical training led by Uwe Ternieden.
The seminar is recognised by the Chamber of Architects and can,
optionally, conclude with the award of a TÜV Rheinland certificate.
Acoustic Knowledge
for Architects
with TÜV Certificate
Interested in deepening your knowledge of acoustics?
Spalek offers a seminar specifically designed for architects:
“Sound: Curse and Blessing in Architecture”
— a full day of intensive, practical training led by Uwe Ternieden.
The seminar is recognised by the Chamber of Architects and can,
optionally, conclude with the award of a TÜV Rheinland certificate.
Quality and Safety
Guaranteed
10-Year Warranty
All Spalek stretch ceilings are manufactured exclusively from high-quality membranes that comply with applicable legal requirements. The EN 14716:2004 standard is observed — verified and confirmed by an accredited German testing body. We stand fully behind the quality of our work: 10-year warranty on welds and spline systems included.
CE Certified — compliant with all European construction requirements.
Tested fire performance — Euroclass B-s1,d0 and B-s2,d0. Test reports available on request.
UL Certified — compliant with US market requirements.
ULC Certified — compliant with Canadian requirements.
10-year warranty — on welds and spline systems.
Indoor Air Quality A+ — low-emission materials.
Managementsysteme
En ISO 9001 – Qualität
EN ISO 14001 – Umwelt
Reg.-Nr.: 791/7949033364
Spalek Beschlagtechnik GmbH & Co. KG
Dieselstrasse 44
42579 Heiligenhaus