METALESA manufactures, supplies and installs different types of transparent screens designed to reduce noise.
The transparent screens are made of vertically superimposed methacrylate panels between HEA/HEB profiles.
This type of shielding reflects the noise and therefore only provides acoustic insulation behind the screen.
The methacrylate screen is formed of colourless or coloured Methyl Poly(methyl methacrylate) (PMMA) sheets, which fit onto the steel clamping profile and this in turn to the HEA/HEB beam structure. To ensure proper operation, the screen is provided with some EPDM rubber mounts and seals.
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.
ANCHORING
Anchoring the profiles to the foundation is by means of varying diameter and length bolts according to the specific requirements of each project.
FOUNDATIONS
The foundation provides structural stability to the screen, formed of the pillars and acoustic panels, and must also ensure the stability of the surrounding ground.
The types of ground foundation are:
The panels are supported by HEB or HEA steel beams anchored to a foundation that must be calculated based on a study of the terrain, wind resistance, etc.
Steel profiles are used to fasten the panels to the beams, which are anchored to both the panel and the profile.
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.
At the client’s request, we carry out the entire assembly process:
– Foundation calculations and bearing structure.
– Staking based on topographic elevation.
– Execution of foundations.
– Assembly of support profiles and placement of panels.
Our engineering team has extensive calculation and optimisation experience, and our team of assemblers and associated subcontractors have spent years assembling acoustic screens in all conditions.
