Sustainable acoustic solutions: expertise for an eco-friendly future

Corinne Ballarini (LSC Engineering Group) shares her experience in developing sustainable acoustic solutions. Acoustics plays an essential role in the construction and integration of local and bio-based materials. It is part of a circular economy approach, aimed at reducing the carbon footprint of projects.

The acoustics department at LSC Engineering Group brings together experts in environmental, industrial and architectural acoustics. The team designs solutions tailored to the specific needs of its clients, while meeting high technical and environmental standards. “Today, sustainability is no longer an option, it is a necessity,” emphasises Corinne Ballarini, acoustician at Simon-Christiansen & Associés, a subsidiary of LSC Engineering Group, stressing the importance of integrating this ecological awareness into every project.

Sustainable and innovative acoustic solutions

LSC favours the use of bio-based materials such as hemp, cellulose, sheep’s wool and wood derivatives. These materials are not only sustainable, but are also acoustically optimised to offer maximum performance.

“We work with local materials as much as possible to promote the circular economy,” continues Corinne Ballarini. For example, sheep’s wool is only used if it comes from the region, thus limiting carbon emissions. The choice of removable and recyclable products also optimises the acoustic performance of buildings while reducing their environmental impact.

“We are working to optimise modular acoustic partitions and structures that can be easily dismantled and reused, thereby helping to reduce construction waste.”

Corinne Ballarini, LSC Engineering Group

Awareness in the construction sector

Over the years, interest in sustainable materials has grown significantly. “A few years ago, it was difficult to promote sustainable products. Today, demand for certified materials is growing, particularly due to environmental criteria in building certifications.”

Corinne Ballarini has also observed a change in the building materials used. “Previously, concrete was largely dominant. Today, we are seeing more and more projects using cross-laminated timber (CLT), which makes it easier for us to offer eco-friendly acoustic solutions.” Although awareness is widespread, economic constraints can still hinder the systematic use of sustainable materials. “Wood can sometimes incur additional costs compared to concrete, which means compromises have to be made.”

Luxembourg ahead of its neighbours

Luxembourg stands out for its support in the field of acoustics, particularly for buildings exposed to noise, such as those near Findel Airport.

“In Luxembourg, there is specific support available to improve the acoustics of buildings, and we work closely with the energy department to optimise renovations in terms of both energy and acoustics.”

Corinne Ballarini, LSC Engineering Group

A new acoustic standard, ILNAS 103-1:2022, has been introduced in Luxembourg, imposing strict requirements for acoustic insulation between dwellings. “This is the first standard of its kind in Luxembourg, and it marks a major step forward for residents’ quality of life.”

The growing importance of acoustic comfort

Acoustics has become a priority in many sectors, including workspaces. “Users are increasingly sensitive to acoustic comfort. In offices, for example, people express the need not to hear their colleagues’ conversations or ambient noise.”

Corinne Ballarini points out that this need for comfort is also evident in public spaces such as restaurants and company canteens. “Sometimes people don’t realise that it’s the acoustics that affect their comfort. They leave a restaurant feeling tired without knowing that noise is the cause. ” Improving the acoustics in these spaces creates a more pleasant atmosphere, even if the difference is not always consciously perceived.

Acoustics at the heart of renovation projects

With the housing crisis and the need to refurbish existing buildings, renovation is booming. “Today, we talk more about renovation than new construction. Refurbishing empty buildings or changing their function is a major challenge, as it limits the creation of new debris.”

Acoustics plays a fundamental role in these projects. “When we renovate a building or change its use, it is crucial to assess the existing structure to determine how to optimise sound insulation. We can add partitions, false walls or false ceilings to meet the new requirements.”

A holistic approach at LSC

What sets LSC apart is its multidisciplinary approach.

“We are fortunate to be able to collaborate with experts in structures, thermal engineering and other disciplines, which enables us to offer comprehensive, optimised solutions. This internal collaboration is a real asset in the design of sustainable projects.”

Thanks to this holistic approach, LSC harmoniously integrates acoustic, thermal and structural solutions to design sustainable buildings that meet the environmental challenges of tomorrow.

Interview by Sébastien Yernaux.

Article published in InfoGreen Luxembourg