Acoustic Rw dBEribel manufactures an extensive range of acoustic doors, fixed windows, and other interior joinery that effectively shield sound sources. Our products achieve up to Rw 48dB in tests conducted at a recognized laboratory.
When we want to rank the level of acoustic insulation, we use a single-number rating. The calculation is standardized and included in the norm. The single-number value actually comprises three elements and is calculated as follows: Rw (C; Ctr).
Rw: The R-spectrum is reduced to a single-number rating at 500Hz (the weighted sound reduction index)
C: Spectral adaptation term for sources of mainly mid- to high-frequency sound
Ctr: Spectral adaptation term for sources of mainly mid- to low-frequency sound
| TYPE OF NOISE SOURCE | Rw + C | Rw + Ctr |
| Playing Children | X | |
| Living activities (talking, music, radio, TV) | X | |
| Nightclub music | X | |
| High-speed road traffic (> 80 km/h) | X | |
| Slow-moving (e.g., urban) road traffic | X | |
| Moderate to fast-moving rail traffic | X | |
| Slow-moving rail traffic | X | |
| Airplanes (jets) at close range | X | |
| Airplanes (jets) at great distances | X | |
| Propeller aircraft | X | |
| Businesses with predominantly mid- to high-frequency sound | X | |
| Businesses with predominantly mid- to low-frequency sound | X |
In addition to lab measurements, acoustic performance can also be assessed through on-site measurements using DnTw values, expressed in decibels. These values indicate the acoustic performance of the entire wall and are more complex than lab-based values, as they are influenced by environmental factors.
Eribel's acoustic doors achieve Rw values up to 48 dB in tests conducted at a recognized laboratory.
The test specimen is realistically installed between a completely separated transmitting and receiving room. Subsequently, dominant sound transmission is conducted through the test specimen. The purpose of this measurement is to determine the sound reduction index (referred to as Rw and expressed in decibels) of the joinery installed in the acoustic chambers. This index enables the determination of airborne sound insulation performance of a building element or system. A higher Rw value indicates better insulation performance.
| Europe | |
| Standards | EN ISO 10140-2 EN ISO 717-1 |
| Classes | Rw …dB |
Our acoustic doors and fixed windows can be further enhanced with additional features. For instance, they can also be made fire-resistant, intrusion-resistant, airtight, smoke-resistant, radiation-resistant, and thermally insulating.
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