METALESA designs, manufactures and install a number of panels integrated on the wall of sport facilities with the form of a noise barrier, aiming at minimizing the acoustic pollution caused by environment noise: traffic noise, fans noise, etc.
INTEGRATION OF ACCOUSTIC PANNELS ON FACADES
Acoustic Panels for facade cladding in sport facilities
|Height (mm)||Width (mm)||Length|
- Absorbent face focused towards the noise:
The absorbent face is a multi-perforated metallic element. The design of the perforations allows sound waves to penetrate the panel and dissipate in the absorbent material.
- Acoustic insulation:
Rock wool reduces sound levels due to its fibrous and elastic nature as it dissipates the energy of the sound waves penetrating it..
- Reflective face:
The reflective face leaves a space to the rock wool that creates an acoustic chamber so that sound waves reflect in it towards the absorbent material.
- Support structure: HEA/HEB studs with hot-dip galvanised welded base plate painted with polyester powder paint.
- The acoustic properties of the metal anti-noise screens
have been assessed against Standard EN 1793-1 where it obtained maximum acoustic absorption and insulation values. The acoustic screens manufactured by METALESA meet the requirements set for the CE MARKING pursuant to annex ZA of Standard EN 14388. The product is subjected to assessment by accredited testing laboratories:
- Pursuant to Standard EN 1793-1 it obtains an acoustic absorption index of DLα
- Pursuant to Standard EN 1793-2 it obtains an acoustic insulation index of DLR.
- Pursuant to Standard EN 717-1, it obtains a weighted noise reduction index of Rw (C;Ctr).
The panels are mechanically tested based on Standard EN 1794-1 and showed they can support very high loads in tests performed in accredited laboratories.
For certain solutions, there is the possibility of guaranteeing the mechanical properties through appropriate analytical calculations as provided for in current regulations.
Aspects having an impact on the screen’s final effectiveness must be considered as a whole: compliance with on-site construction conditions, installation of the screen, type of panel, distance between beams, etc.
Equally as important as the panels’ characteristics are suitability of the type, height, insulation parameters, acoustic simulation, etc. It is also necessary to carry out adequate foundations to guarantee the system’s stability. Our engineers and calculation engineers jointly manage all these factors to ensure the screen functions properly.