Annual Report 2025

Annual Report 2025

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Any product promising high sound insulation must first pass the tests in the laboratory. The acoustics team creates a mountain of data for Geberit Silent-db20 SuperTube – which lays the foundations for first-class customer advice.

Things are rarely quiet in Geberit’s Building Technology and Acoustics Laboratory in Rapperswil-Jona (CH) – and with good reason. For decades, the sound insulation properties of products have been tested here. These tests are complex: pipes are installed just like on the building site – in ducts, under ceilings and with different panelling. “We want to know how our products behave in practice,” explains acoustic engineer Samuel Pasteur.

Preparations in the measuring room used for testing Geberit Silent-db20 SuperTube. (Photo)
Preparations in the measuring room used for testing Geberit Silent-db20 SuperTube.
Over 1,000 measurements on Geberit Silent-db20 SuperTube have resulted in a comprehensive data pool. (Photo)
Over 1,000 measurements on Geberit Silent-db20 SuperTube have resulted in a comprehensive data pool.

1,000

measurements in the Geberit laboratory provide answers to complex customer enquiries about sound insulation

The SuperTube technology used for the efficient drainage of high-rise buildings is now also available in a version with highly sound-insulating pipes. The acoustics team carries out more than 1,000 measurements for this further development. The result: Geberit Silent-db20 SuperTube not only saves space in the ducts, but also significantly reduces noise development. This is possible thanks to a reinforced plastic that reduces natural vibrations, sound-insulating ribs and optimised flow behaviour of the wastewater.

Better advice thanks to huge data pool

The meticulous testing pays off twice: it provides a valuable data pool that is in global demand. Every year, the Geberit acoustics specialists receive dozens of enquiries from sanitary engineers around the world – often with complex requirements. “We can offer them specific recommendations based on our data, from the right product through to optimal fastening,” explains Samuel Pasteur. High-precision laboratory work then results in real benefits for customers – while also demonstrating Geberit’s acoustic expertise.