Proof,
not promises.
Every figure on this site states how it was obtained: laboratory tested, calculated, or not yet available. This page is the chain of evidence.
Silentium 100: Rw 52 dB.
C −1 · Ctr −4 · Silentium 100 · full assembly
Laboratory tested
- Measurement standard
- ISO 10140-2
- Rating standard
- ISO 717-1:2020
- Tested specimen
- 6 + 6 mm laminated glass · air gap · 6 + 6 mm laminated glass
- Total construction depth
- 100 mm
- Specimen area
- 1.85 m²
- Laboratory
- GiB mbH · Arnstorf, Germany
- Accreditation
- DAkkS · ISO/IEC 17025 · D-PL-18520-01-00
- Report number
- E260327M1/1_rev00
- Report date
- 30 March 2026
Silentium Alto
Laboratory tested
Rw 51 dB
C −1 · Ctr −4
12 mm float glass · 60 mm air gap · 6 + 6 mm laminated glass. Report E260413A1/1_rev00, 14 April 2026.
Every published figure, and what stands behind it.
A laboratory result, a calculation and a design target are different things. Each acoustic statement on this site is listed here with its evidence level.
GiB mbH · Report E260327M1/1_rev00 · 30 March 2026
Test summary, Silentium 100, 6 + 6 mm laminated · air gap · 6 + 6 mm laminated
GiB mbH · Report E260413A1/1_rev00 · 14 April 2026
Test summary, Silentium Alto, 12 mm float · 60 mm air gap · 6 + 6 mm laminated
Prediction · INSUL v9.0.24 · VIBROCOMP ME FZCO · rated to ISO 717-1:2020 · July 2026
System page, Silentium Alto, 10 mm toughened · 60 mm air gap · 10 mm toughened
Prediction · INSUL v9.0.24 · VIBROCOMP ME FZCO · rated to ISO 717-1:2020 · May 2026
No laboratory result exists yet. Data will be published when testing is complete.
Specified for transparency or flexibility rather than sound insulation.
Specified for transparency or flexibility rather than sound insulation.
Specified for transparency or flexibility rather than sound insulation.
Criterion, standard, verification.
Acoustic
Airborne sound reduction, Rw 52 dB measured on the full Silentium 100 assembly
ISO 10140-2 · ISO 717-1:2020
Laboratory tested
Acoustic
Airborne sound reduction, Rw 51 dB measured on the full Silentium Alto assembly
ISO 10140-2 · ISO 717-1:2020
Laboratory tested
Structural
Strength and robustness of the Silentium partition structure, Severe Duty
BS 5234-2
Tested
Glazing
Tempered, heat-soaked toughened, and laminated safety glass
EN 12150 · EN 14179 · EN 14449
Specified
Material
Aluminium alloy 6063-T5 / T6, mill certificate per extrusion batch
EN 573-3 · EN 755-2
Traceable
Surface
Polyester powder coating, minimum 60 µm, Class 2 where specified
Qualicoat Class 2 · EN 12206-1
Specified
Anodising
Architectural anodising, natural to black
EN 12373-1 · QUALANOD
Specified
Acoustic performance you can understand.
No partition
Normal speech and office activity remain clearly audible.
Audio demonstration is illustrative. The 52 dB step represents the laboratory-tested Silentium 100; the other steps are generic reference levels for comparison, not Luperal systems. The playback level shown is a property of this demonstration, not a measured value. Actual perceived sound reduction depends on room conditions, flanking paths, installation quality, glass configuration, and the tested complete assembly. Rw ratings are laboratory values measured under controlled conditions; site performance can differ.
Sound finds gaps. The system is engineered to close them.
Decoupled construction
Two independent glass panes with no rigid connection. The air gap interrupts the vibration path instead of carrying it.
Continuous EPDM gaskets
Acoustic gaskets run unbroken at every glass-to-profile interface, compressed to a controlled line load.
Flanking control
Isolation pads at floor and ceiling junctions limit sound bypassing the partition through the structure.
Glass configuration logic
Symmetric and asymmetric laminated builds chosen per requirement. Each build-up carries its own evidence level.
The evidence, to read and to request.
Test summaries are published here. Full laboratory reports are issued by the engineering team, typically within one working day.
Rw 52 dB laboratory test · summary
Evidence summary · Silentium 100 · 6 + 6 / air gap / 6 + 6 mm laminated · HTML · 30 March 2026
Result, standards, specimen, laboratory, accreditation and scope of the test.
GiB test report E260327M1/1_rev00
Acoustic test report · Silentium 100 · tested specimen · PDF · rev00 · 30 March 2026
Full laboratory report. Issued to architects and consultants on request.
Rw 51 dB laboratory test · summary
Evidence summary · Silentium Alto · 12 / 60 / 6 + 6 mm · HTML · 14 April 2026
Result, standards, specimen, laboratory, accreditation and scope of the test.
GiB test report E260413A1/1_rev00
Acoustic test report · Silentium Alto · tested specimen · PDF · rev00 · 14 April 2026
Full laboratory report. Issued to architects and consultants on request.
The questions consultants actually ask.
Is the Rw 52 dB rating for the glass or for the system?
For the complete system. The figure was measured on the full Silentium 100 assembly, profiles, gaskets, double glazing, and junctions, according to ISO 10140-2, and rated according to ISO 717-1:2020. Glass-only ratings routinely overstate what a built partition achieves.
What does Rw 52 dB mean in practice?
Rw is a laboratory rating of how much airborne sound the partition itself reduces. Rw 52 dB is a high, specification-grade level, suitable for confidential meeting rooms and executive interiors. The separation achieved in a finished room also depends on the floor, ceiling and façade junctions and on any door in the wall, so site values are normally lower than laboratory values.
Do all Luperal systems achieve Rw 52 dB?
No, and we will not claim otherwise. Rw 52 dB is the laboratory result for the tested Silentium 100 configuration. Silentium Alto is laboratory tested at Rw 51 dB with an asymmetric glazing build-up. Forma is single-glazed: its Rw 36 dB is a calculated figure for 6 + 6 mm laminated glass, not a laboratory test. The Porta door-set has not yet been laboratory tested, and the sliding and folding systems carry no published rating.
What is the difference between tested and calculated?
Laboratory tested: Measured on the complete assembly at an accredited laboratory. Report reference published. Calculated: Predicted by an independent acoustic consultant using recognised modelling software. Not a laboratory measurement. Every figure on this site is labelled with one of these evidence levels.
Can we review the test reports before specifying?
Yes. A summary of each laboratory test is published on this site, and the full reports, E260327M1/1_rev00 for Silentium 100 and E260413A1/1_rev00 for Silentium Alto, issued by GiB mbH under DAkkS accreditation D-PL-18520-01-00, are sent to architects and consultants on request, typically within one working day.
What documentation is available for tender packages?
Technical data sheets, CAD section details, specification clauses, acoustic test reports, finish samples, and structural performance statements, prepared at the level required for formal consultant submission. The Documents page lists each one with its access status.