Portable sound absorbing mats
testuje se additional info
Construction works are accompanied by the inherent problem of noise, which can negatively affect our health. Spatially propagating sound waves are vibrations of air molecules, and by changing their density, a pressure difference is created. Very loud noises, i.e. large pressure differences, can damage hearing and other organs in the human body. Therefore, it is important to prevent and reduce noise wherever it can be a threat. Effective tools for reducing the impact of noise include acoustic screens and sound-absorbing mats.
Advantages – Soundproof mats
Up to 25 dB reduction: Sound absorbing screens consisting of Exnoiser mats reduce noise levels by up to 25 dB.
Weather resistance: The waterproof and durable coating is resistant to wind, rain and snow.
Quick installation: Simple installation allows the screens to be set up in a matter of hours.
Effectiveness confirmed by tests: Our product's effectiveness is backed by tests conducted by the Vibroacoustic Research Laboratory of Centrum Techniki Okrętowej S.A.
Modular joining: The screens can be joined together both horizontally and vertically.
Made in Poland: We are a Polish company that manufactures, among others, Exnoiser mobile soundproofing mats.
Durable fabric: A special technical fabric with a polyester mesh provides the necessary strength of the product.
Permissible noise levels on the construction site
The Ordinance of the Minister of Environment of June 14, 2007 on permissible noise levels in the environment ”describes all the necessary noise protection regulations for various areas.
- In a single-family residential zone, the maximum decibel values are (day / night time) 50/40 dB
- In multi-family housing and collective housing zones, these are 55/45 dB
- In the downtown area of cities with more than 100,000 residents, noise levels up to 55 dB during the day and 45 dB at night are allowed.
The eight most unfavorable consecutive hours are considered when measuring noise. Noise barriers become essential when these values are exceeded. Properly positioned noise barriers can ensure compliance with regulations, facilitating construction work in populated areas, and people can avoid damage to health and continue their activities undisturbed.
Noise reduction up to 25dB
Exnoiser R25 can reduce noise to a maximum of 25 dB in a single layer. The sound-absorbing mats achieved this result in a study carried out by the accredited Vibroacoustic Testing Laboratory of Centrum Techniki Okrętowej S.A. Exflo created Exnoiser mats to effectively reduce noise, particularly in outdoor conditions exposed to atmospheric elements. The dimensions and arrangement of the mounting holes allow for multiple and modular combinations, enabling the construction of large-area acoustic screens based on any structure. Depending on the screening height requirements, these mats can be mounted on openwork fences, scaffolding and other structures of the appropriate size. It is equally important to fully adapt to the local wind zone.
Exnoiser Mat – Specifications
- Dimensions – 2,05 m x 1,20 m
- Dimensions in the connection axes 2.00 m x 1.05 m
- Weight– 14,8 kg
Acoustic properties – results confirmed by tests
The acoustic properties of the Exnoiser R25 mats have been confirmed by test report No. RS-2018 / B-268 of 11.07.2018, conducted by the Vibroacoustic Research Laboratory of Centrum Techniki Okrętowej S.A. (acoustic insulation and standardized difference in sound pressure according to PN-EN ISO 10140-2: 2011, PCA AB1241 accreditation).
| Indicator | Refers to | Index norm | Indicator value |
|---|---|---|---|
| Rw | proper acoustic insulation index | PN-EN ISO 717-1:2013 | 22 (-1; -3) dB |
| Dw | normalized sound pressure difference | PN-EN ISO 717-1:2013 | 25 (-1; -4) dB |
Acoustic research results
The nature of the propagation of sound waves determines the arrangement of noise barriers – they should be located as close to the sound source as possible. It’s essential to follow the 45⁰ angle rule, which means it should be in the position source – screen height, source – screen edge. It should also be taken into account that engines and aggregates generate heat during operation, and the maximum operating temperature of Exnoiser R25 soundproofing mats is 70⁰C. Exceeding this value will result in irreversible damage. For the best noise reduction effect, it is recommended to use a professional acoustic analysis in which the location and exact parameters of the screen will be determined.
Installation of acoustic screens
During assembly, special attention should be paid to a few more important details. First of all, fixing each Exnoiser mat in the appropriate number of mounting points (most often with strong cable ties) and preferably on a solidly anchored retaining structure designed to withstand wind pressure. In addition, sound-absorbing mats should never rub against angular elements of the structure due to wind. This will prevent them from tearing.
Installation of noise barriers
Pricelist
The price of the Exnoiser R25 mat is EUR 229 net. However, the price of the acoustic screen (Exnoiser R25 mat + construction) is priced individually.
| Exnoiser No. | Net | |
|---|---|---|
| 1. | More than 30 pcs. | 315 EUR |
When placing an order, you can also take advantage of full comprehensive noise management, which includes:
- acoustic analysis
- assembly and disassembly of the structure
The possibility of renting
We offer the possibility of renting sump tubs. We realize that in many cases, especially with a changing number of projects, renting can be more advantageous. The rental can be short-term or long-term. For longer rental periods, we offer the option of custom-made sumps. For more details, visit the Leasing of Spill Baths subpage.