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Types of mobile inflatable noise barriers & noise reduction
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+31 (0)316-250830
Buitink TechnologyThis page provides an overview of the standard types of mobile inflatable noise barriers from Buitink Technology and their corresponding acoustic performance.
The information is intended for:
- acoustic consultants
- engineering firms
- contractors
- public authorities
Based on this information, in many cases an initial selection can be made of the required type of panel and the expected noise reduction.
Please also view our customised solutions:
How is noise reduction determined?
Sound insulation of a noise barrier
The effectiveness of a noise barrier is determined by a combination of:
- screen height and positioning
- distance between source and receiver
- sound insulation of the screen itself
This page specifically discusses the sound insulation properties of the inflatable panels.
Measurement method & standards
- The sound insulation of the standard configurations was determined through laboratory measurements.
- The measurements were carried out in accordance with NEN-EN-ISO 140-3, covering laboratory measurement of airborne sound insulation of building elements.
The measurements
Water and membranes as sound insulation
Acoustic parameters Rw, C and Ctr
The sound insulation of the panels is expressed in:
Rw – weighted airborne sound insulation
C – correction term for mid and high frequencies
Ctr – correction term for low frequencies (traffic, machinery, music)
In many practical situations, the value Rw + Ctr determines the effectiveness of the screen.
Standard types
Buitink Technology has developed and tested a number of standard configurations of inflatable sound panels.
These types form a proven basis for many temporary applications and differ in terms of mass, panel construction and acoustic performance.
In many cases, these standard types can be used to make an initial selection for the desired noise reduction.
Type BUI-V4-200-3
Two PVC membranes with a 200 mm air cavity, operated at an overpressure of 100 mbar.
Features:
| Weight approx.: | 3 kg/m² |
| Rw (C; Ctr): | 20 (-1; -2) dB |
| Rw + Ctr: | 18 dB |
Application:
- situations with limited noise requirements
- focus on mid and high frequencies
- very light and compact transport
Type BUI-V4-200-6
V4 base configuration with a 5 mm PVC layer on one side and a 50 mm mineral wool layer on the opposite side.
Features:
| Weight approx.: | 6 kg/m² |
| Rw (C; Ctr): | 26 (-1; -3) dB |
| Rw + Ctr: | 23 dB |
Application:
- temporary construction situations
- logistics applications
- limited low-frequency component
Type BUI-V6-200-4
V6 base configuration with a 1.3 mm PVC layer on one side.
Features:
| Weight approx.: | 4 kg/m² |
| Rw (C; Ctr): | 24 (0; -3) dB |
| Rw + Ctr: | 21 dB |
Application:
- temporary construction activities
- roadside and urban works
- temporary technical installations
Type BUI-V6-200-7
V6 base configuration with a 4 mm PVC layer on one side.
Features:
| Weight approx.: | 7 kg/m² |
| Rw (C; Ctr): | 30 (-1; -4) dB |
| Rw + Ctr: | 26 dB |
Application:
- construction sites
- railway works
- combination of mobility and performance
Type BUI-V6-200-11
V6 base configuration with triple 1.3 mm PVC layers on both sides.
Features:
| Weight approx.: | 11 kg/m² |
| Rw (C; Ctr): | 33 (-1; -5) dB |
| Rw + Ctr: | 28 dB |
Application:
- higher requirements for low-frequency reduction
- temporary installations and machinery
Type BUI-V6-200-35
V6 base configuration with a 35 mm water-filled panel on one side.
Features:
| Weight approx.: | 35 kg/m² |
| Rw (C; Ctr): | 39 (-1; -3) dB |
| Rw + Ctr: | 36 dB |
Application:
- heavy construction machinery
- industrial applications
- situations with dominant low frequencies
Type BUI-V6-200-70
V6 base configuration with 35 mm water-filled panels on both sides.
Features:
| Weight approx.: | 70 kg/m² |
| Rw (C; Ctr): | 52 (-3; -8) dB |
| Rw + Ctr: | 44 dB |
Application:
- very strict noise standards
- festivals
- urban situations with nearby residences
Summary & referral
The correct choice of panel type depends on the project and is determined by:
- the sound spectrum of the source
- the desired noise reduction
- the available space
- the screen height and positioning
View applications of mobile inflatable noise barriers by sector
Questions?
Do you have questions or want more information? Please feel free to contact us. Call us at +31 (0)316-250830. But even easier: fill out the contact form below directly. We will contact you as soon as possible!
