Solutions to isolate traffic noise on roads and cities

Roads unite people. Every day it is estimated that millions of vehicles circulate on the roads.

At Metalesa, our goal is to ensure the safety of people. For this reason, we take care of guaranteeing safety while driving with our containment systems such as bridge parapets, terminals or crush cushions. However, on the roads there is another danger that is not seen, but heard. And not for vehicle occupants, but for the people who live around road infrastructures: noise pollution.

Noise pollution is a problem that we face every day both on roads and in urban environments. Its effects are harmful to people and the environment, therefore, society is increasingly becoming aware of it and taking action through specific action plans governed by the authorities.

Acoustic studies on roads

Precisely, one of these measures is the performance of acoustic studies. The pollution of a specific area can be measured with noise maps. If an excess of noise is concluded as a result of such study, the next step is to configure the optimum solution to attenuate it, normally with an acoustic screen.

Undoubtedly, acoustic screens are the best corrective measure to reduce the propagation of noise generated by road or rail traffic, since they act as a barrier between the receiver and the noise source, both absorbing and reflecting the noise waves. Thus, acoustic screens are the most widely used anti-noise systems in transport infrastructures, due to their rapid installation, their value for money and their effectiveness.

Our acoustic screens

At Metalesa, through the installation of our acoustic screens, we ensure the quality of life of people who struggle day to day traffic noise.

Our acoustic screens are conformed of sound-absorbing panels that provide quality acoustic and mechanical solutions. No only they minimize noise pollution from traffic on roads and railways, but also from many other sources such as industrial facilities (factories,...), commercial malls (air conditioning equipment), or massive events in public/private facilities (sport stadiums, leisure clubs, hotels…). All of our acoustic screens comply with European standards EN14388, EN16272 and EN16727.

Learn more about the Regulation of noise reduction devices for roads.

How to decide among different type of acoustic screens?

There are multiple drivers to analyse when choosing the right acoustic screen for a certain project.

  • On the one hand, the requirements defined by the acoustic study should guide the project.
  • It is essential to take into account the environmental and climatological agents to which the panels will be exposed. Mainly the wind loads that dictate the mechanical loads that the panel must support. Our experts in calculation of structures have extensive experience in designing the optimal solution for each case. But also other aspects such as the type of environment, which derives in different levels of corrosivity, and before which, the appropriate finishes must be applied. Or even climate or exposure to snow which may recommend different materials.
  • Finally, aesthetics is another part of the decision. Goals such as integration with a forest or a green landscape, or even keeping nice views of an attractive panorama, are issues to take into account and that can make one solution more convenient than another.

All these aspects must be taken into account together so that the technicians in charge of carrying out the project select the panel that best suits the needs of each acoustic screen work. We have several panel configurations for each scenario, all of them accredited by tests carried out in accredited laboratories: metallic steel or aluminum, methacrylate, wood or vegetable mesh. Having said that, the most commonly installed screens for road and railway infrastructures are steel ones. We have numerous models that solve any casuistry. You can see all our acoustic screens at this link.

But in this article, we focus on less common, but equally interesting speaker configurations:

Metawood noise barrier with wooden panels

This sound-absorbing panel is made up of wood modules of varying dimensions, which fit between the HEA/HEB fastening profiles of the support structure.

The wooden acoustic panel consists of the following elements:

  • Traffic side: In this part, pine wood boards are arranged with the possibility of making different combinations with boards horizontally, vertically and obliquely, achieving various aesthetic effects.
  • Sound insulation: It is a semi-rigid rock wool panel with a black veil that protects it from erosion and humidity.
  • Rear side: They are planed pine wood boards arranged horizontally.
  • Thanks to the Metawood panel, maximum noise insulation and absorption is obtained. In addition, thanks to their natural materials they allow an excellent landscape integration.

Metagreen noise barrier with vegetal panels

Rock wool and other materials are placed inside the vegetable acoustic panels, along with a green plastic mesh that facilitates the growth of vegetation. Rock wool is capable of retaining rainwater inside, becoming a highly valuable moisture reserve both for animals and to facilitate the growth of vegetation. Metagreen panels are made of recyclable and sustainable materials.

The Metagreen acoustic screen guarantees an excellent acoustic and absorbent effect, in addition, it has a long durability when undergoing a galvanized anti-corrosion treatment.

MP Acoustic Panel Range

Long useful life

Know more!

Mixed steel and methacrylate noise barrier

The mixed steel and methacrylate acoustic screen, like the previous two, also has exceptional sound-absorbing qualities. We put at your disposal all kinds of varied designs.

In addition, its aesthetics provide excellent landscape integration.

We show you the mixed acoustic screen of steel and methacrylate that we installed in the work of the N-1 in Lasarte (Guipúzcoa).

If you need more information about our acoustic screens, or want to know our complete range, contact us. We will be happy to help you.

How to protect my house from the noise of cars while maintaining the views

Are you staying in a house in a small town on the coast or in the mountains? Do you enjoy views of the sea or nature? If the answer is yes, we can imagine the sensations that have come to mind: calm, disconnection, well-being, happiness ... However, sometimes there are external factors that interrupt this atmosphere of tranquility, such as noise from cars traveling in nearby areas.

It is a shame that the noise pollution caused by traffic interrupts your state of serenity, because excess noise is not only annoying, but is also harmful to health, especially in the face of constant exposure to high noise levels.

At Metalesa we ensure the protection of people, and therefore in this article we bring you the solution to end the noise of cars without giving up wonderful views.

Soundscape and noise pollution

The term 'noise pollution' is likely to be much more familiar to you than 'soundscape', so let's start by explaining the latter.

What is the soundscape?

The Soundscape refers to the set of characteristic sounds of a certain place. That said, there are several types of soundscapes:

  • Natural soundscapes: are those that are produced due to the sound of animals, vegetation moving with the wind, sea waves, raindrops ...

  • Artificial soundscapes: are those produced by human activities, the use of machinery, traffic ...

In general, natural soundscapes are positive, since they generate a type of noise that is neither annoying nor harmful to humans. However, man-made soundscapes are often the cause of noise pollution, and what is even more serious, noise pollution can eventually take over natural soundscapes.

Given this fact, from Metalesa we recommend installing acoustic screens to eliminate excess noise, and thus restore the natural state of the area in which your home is located.


Acoustic screens to absorb noise

Acoustic screens are made up of panels capable of absorbing or attenuating excess noise. At Metalesa, one of our star products is precisely acoustic screens, which is why we have a wide variety of types and models of acoustic panels.

With the installation of acoustic screens you will be able to live peacefully at home without the annoying noise due to traffic interrupting your tranquility. That said, if what we want is to maintain the views, not all acoustic screens will work for us. Our recommendation is the methacrylate acoustic screen thanks to its transparent panel.

Methacrylate acoustic screen to maintain views

The methacrylate acoustic screens are made of polymethacrylate sheets, and can be colored or colorless, although as a general rule if we want to enjoy the views we will opt for the colorless ones; they can also incorporate different vinyl models. In any case, we always adapt to the needs of each client.

Its height and separation dimensions are calculated based on an acoustic study, the terrain and the action of the wind in the area. Likewise, the acoustic panels can be adapted to different widths of beam profiles.

More advantages of methacrylate acoustic screens

The methacrylate acoustic panels fulfill a double acoustic and aesthetic function, as they guarantee noise absorption while integrating perfectly into the landscape, allowing tenants to enjoy the views around them.

  • The methacrylate acoustic screen is easy to install.
  • There is the possibility of choosing between various designs of acoustic panels, which give rise to different combinations resulting in mixed shielding.
  • Methacrylate acoustic screens are highly resistant to adverse weather conditions, such as the action of wind or rain.
  • If the customer needs colored acoustic panels, it is possible thanks to the galvanized and thermo-lacquered components of the acoustic panels, in different standard colors from the RAL chart.
  • All our acoustic screens, including the methacrylate acoustic screen, have been mechanically tested according to the EN 1794-1 standard.

The methacrylate acoustic screens are the perfect solution to guarantee your well-being in your home, while you have the pleasure of enjoying the landscape that surrounds you. Be it the beach, nature, beautiful views in urban areas ... We all deserve to live in a soundscape in which we can feel comfortable. If you want to end the noise in your house, do not hesitate to contact us by calling 96 088 99 44 or sending an email to

How to avoid noise in leisure premises

When we hear the term ‘noise pollution’, it is commonly associated it with the noise produced on the roads due to traffic, industrial zones… But these activities are not the only ones that generate excess of noise.

In this sense, entertainment venues such as restaurants, bars, nightclubs, game rooms ... are also a source of noise to take into account if we want to guarantee the quality of life of people who live in areas close to this type of premises. .

In the entertainment venues several factors are mixed, on the one hand, music is usually very loud, and on the other hand, the bustle of people outside. All this together leads to an acoustic problem in cities to which Metalesa aspires to provide a solution.


Acoustic regulations for leisure venues

Leisure venues are obliged not to exceed certain noise limits. In accordance with Law 7/2002, which refers to protection against noise pollution, and many other regional or local legislation, these are the maximum acoustic levels allowed in this type of premises:

  • Nightclubs: 104 dB (A)
  • Venues with musical ambience: 90 dB (A)
  • Game rooms: 85 dB (A)
  • Bars and restaurants: 80 dB (A)

However, it is important to add that, although an entertainment venue may be complying with acoustic regulations, noise can still be annoying for people living in its surroundings, specially at night.

For this reason, it is so important to provide these businesses with the accurante infrastructures to eliminate noise pollution, preferably through acoustic screens specially designed for leisure venues.

First step: carrying out an acoustic study in leisure venues

The first step is usuarlly to carry out an acoustic study in the area affected by excessive noise.

Experts in acoustic studies use both measurement equipment and a very clear methodology. They are responsible for evaluating it there is an actual excesso of noise over the limits established by law. The acoustic study duration may bary from a few hours to several days, depending on various factors, for example, if it is a closed or an open room, or if it is a high or low space.

A noise map is obtained as a result of the acoustic study. If the indicators show that the actual noise surpasses the legal limits, METALESA can handle the solution with its accoustic screes. Later one, the experts will return to confirm that the original acoustic problem has disappeared.

In fact, it is important to bear in mind that conducting an acoustic study is mandatory for all those premises that produce noise with a sound pressure level greater than 70dBA. The specifications of each premises are included in the municipal ordinances.


Types of acoustic screens for entertainment venues


Urban acoustic screen for leisure venues

Urban acoustic screens for entertainment venues are ideal for outdoor terraces. In addition to being effective, they also fulfill an aesthetic function.

At Metalesa we design, manufacture and install urban acoustic screens for leisure venues of three types: metal, methacrylate and wood. All types of acoustic panels will be equally efficient, but aesthetically one type of acoustic screen may be more convenient than another.

For example, transparent methacrylate acoustic screens are perfect to attenuate noise while customers do not lose attractive views. On the contrary, if it is a space where privacy is important, it might be a better idea to chose metal or wooden acoustic screens. In addition, this type of acoustic screens can give entertainment venues their own style and personality.

Acoustic screen with vegetal mesh for leisure venues

The Metagreen acoustic screen is also an acoustic barrier that provides a great solution to the aesthetic appearance. A leisure space that surrounds its area with this type of screen will create a vertical garden that will act as a decorative element of the walls of the premise.

The growth of vegetation in this type of acoustic panels is achieved by adding over the rock wool a green plastic mesh that facilitates the growth and rooting of vegetation on both sides.

Design Acoustic Screen

For us, each client is unique and that is why we attend to their needs in a totally personalized way. The quality of our products consists of offering the client a product that is 100% adapted to their projects.

Successful entertainment venues tend to have a well-defined and studied design and decoration, and the installation of an acoustic screen should not be a disruptive element in this harmony. Our Design Acoustic Screens allow the owners of the entertainment venues to never lose their style, and at the same time comply with the acoustic regulations.

As we have previously mentioned, at Metalesa we take care of offering a quality product that not only meets high expectations in relation to acoustic problems, but also at the level of design and adaptation to the space of our clients.

The truth is that it cannot be denied that the installation of acoustic screens for leisure venues is always a good idea to guarantee the rest of the neighbors and avoid more than one complaint on their part, improving the image of your premises.

If you are the owner of a leisure establishment, do not hesitate to contact us. It is not worth risking a possible fine, or generating discontent in your neighborhood. Bet on the safety, health and aesthetics that our acoustic screens guarantee. To request a quote, call us at 96 088 99 44 or send us an email to

The loudest roads and railway areas of the Valencian Community

It is no secret that both roads and railways are sources of excessive noise, causing annoyance both to the population and to the conservation of the environment. Specifically in the Valencian Community, it is estimated that approximately 183,000 inhabitants are daily exposed to noise that comes from the main infrastructures, which is a quite alarming fact considering the negative consequences of noise pollution.


The CV-35, one of the roads with the highest levels of noise pollution


The acoustic studies carried out in the main roads of the Valencian Community have concluded that the CV-35 is one of the most affected road, since around 10,000 people support up to 75 decibels at peak times of the day.

Another section with a high noise concentration is the one between Vilamarxant and Benisanó on the CV-50. In this area there are several schools and institutes that must withstand noises of up to 70 decibels.

On the other hand, although the railway network generates less acoustic nuisance, we must also focus on the acoustic problems that derive from the noise of the trains.

According to a European Environment Agency (EEA) report in 2010, railway noise affected over 12 million inhabitants of the European Union every day, figures that may well have increased since that time.

Rail noise in Europe is especially concentrated in Western European countries, among which is Spain. The main sources of noise pollution in railways are engine, rolling and aerodynamic noise, while the most annoying ones are produced by freight trains. We must not forget that passenger stations, places for receiving goods (dry ports), train maintenance activities and other facilities also generate noise in their daily operation. Given this, it may seem that noise pollution caused by the railway and its facilities is almost impossible to eliminate, but the truth is that it is easier to mitigate.

Consequences of noise pollution for our health

As we have seen, there are high figures that confirm that many people are victims of the problems derived by noise pollution from roads and railway areas in the Valencian Community. What are the harmful consequences of excess noise for health?

  • Hearing problems: it is the most common and one of the most worrisome. Keep in mind that any sound above 85 decibels can damage hearing, and on roads and railways, this limit is often far exceeded. Someone who lives in this type of area is continuously exposed to a very high noise level, and consequently can develop hearing loss.
  • Cardiovascular problems: Constant exposure to high noise levels can increase blood pressure, increase heart rate and increase stress by releasing the hormone cortisol ... All of this can lead to an imbalance of vital body functions.
  • Sleep problems: If the home is near highway areas, the noise from freight trucks is very likely to cause sleep disturbances. As we mentioned in the previous point, cardiovascular problems are a long-term effect of this exposure to excess noise. In the short term, the most notable are fatigue, impaired memory and creative abilities, and difficulty concentrating.
  • Digestive problems: Although to a lesser extent, there are studies that have shown that excess noise leads to a decrease in peristalsis, that is, muscle contractions thanks to which the food eaten moves through the digestive system. As a consequence, problems such as gastritis, ulcers, heartburn, loss of appetite, diarrhea or constipation may be more frequent.

How can we solve this problem?

The expansion of urban centers towards industrial areas has meant that many living areas are located very close to road and railway infrastructures, and this requires effective solutions that eliminate excess of noise.

Acoustic Screens

As experts in acoustic solutions, from Metalesa we can certify that acoustic screens are an effective solution to reduce or eliminate this noise. But first, from Metalesa we get in charge of conducting acoustic studies, which are used to extract noise maps that measure noise pollution in a specific area, and based on the results, we take care of adopting the necessary measures through the installation of acoustic screens.


Types of acoustic screens for roads and railway areas


Steel or aluminium metal acoustic screen

These types of acoustic screens are made up of galvanized steel or aluminum panels, which are vertically superimposed between HEA / HEB profiles until the desired height is achieved. By installing metal acoustic screens on roads or railway areas close to human environments, we obtain maximum insulation and absorption, which is a very effective solution to counteract the negative effects of noise.

In addition, other advantages of the metallic acoustic screen are its ease of installation, its long durability thanks to the quality of its components, and its resistance to loads such as the action of the wind or the overpressures produced by rail traffic.

Metallic acoustic screen with mesh or vegetable

This type of plant acoustic noise screens also achieve great noise absorption and acoustic insulation in road and railway areas. Inside the panels that form it, rock wool is placed together with a green plastic mesh that facilitates the growth of vegetation.

Methacrylate acoustic screen

Las características acústicas de las pantallas acústicas de metacrilato o vidrio también son muy eficientes. Están formadas por paneles de metacrilato cuyas propiedades de aislamiento han sido evaluadas de acuerdo a la norma EN 1793-2:1998, obteniendo un elevado índice de aislamiento.

The acoustic characteristics of methacrylate or glass acoustic screens are also very efficient. They are made of methacrylate panels whose insulation properties have been evaluated according to the EN 1793-2: 1998 standard, obtaining a high insulation index.

In addition, it is an easy-to-install acoustic screen, which allows landscape integration, and has a long durability thanks to the quality of its components. For all this, they are ideal to be installed in noisy areas.

Methacrylate can be transparent or have a certain color. Likewise, it is possible to install vinyl solutions on the methacrylate to prevent damage to the birds in the environment.

Wooden Acoustic Screen

This wooden anti-noise screen performs a double acoustic and aesthetic function and is made up of the following elements:

  • Absorbent and reflective face: treated Scots pine wood slats.
  • Acoustic insulation: rock wool with black protective veil.
  • Supporting structure: made up of HEA / HEB-type uprights with hot-dip galvanized welded base plate and painted with polyester powder paint.

Concrete acoustic screen

Concrete acoustic screens are also a very effective option for noise abatement in railway areas.

Among its main characteristics we find its great stability, and its resistance over time, which is why its maintenance is scarce. This consistency is achieved thanks to its materials: cement, sand, water and gravel or crushed stone, giving rise to a highly rigid structure.

The concrete is supported by metal pillars, which also receive a specific treatment to withstand the passage of time. The anchoring of the steel profiles is carried out on the concrete through bolts of variable diameter and length, depending on the client's needs.

Like the rest of acoustic screens, it also allows maximum noise absorption and excellent landscape integration.Noise pollution is a very serious problem, but ‘invisible’ and fortunately more and more society is giving it the importance it requires to implement effective solutions. Undoubtedly, the installation of acoustic screens to absorb noise on roads and railways is the best option to prevent harmful consequences on the health of people who live near these areas. At Metalesa, we want to be part of the solution with our acoustic screens. If you need our services, contact us by calling +34 96 088 99 44 or send us an email to

Noise protection in private areas

Does the noise of your neighbors or the noise of the cars passing by your street annoy you? Is there a leisure area or an industry near your home? Your home should be a place of peace and tranquility, but not rarely there are annoying noises that deprive us of it, especially in villas or urbanizations. Our concern to improve people's quality of life has led us to develop a range of acoustic screens with the goal of making life more comfortable.

Acoustic Insulation for chalets

We use acoustic screens/barriers for villas and urbanizations in order to attenuate the noise that comes from outside. To install them, we take into account the following factors:

Acoustic Barrier height

Acoustic screen/barrier for chalets are usually over two meters high because the screen must be higher than the source that produces the noise, be it cars or the bustle of people in your residential area. In any case, the optimal solution will be defined after carrying out an acoustic study that identifies its intensity by zones with a noise map. As a secondary aspect, the higher, the greater visual screen to guarantee privacy.

Composition of the acoustic screen

At Metalesa we design, manufacture and install different types of acoustic screens/barriers for chalets made of different materials. All of them serve to attenuate noise, but it is true that, depending on the situation, the environment, the architecture of the house or other factors, some will be more suitable than others. Later we will show you the types of acoustic screens for chalets that we manufacture in Metalesa, with special emphasis on Metagreen acoustic screens, also known as vegetal panels.

Ease to install

Acoustic screens for chalets or single-family homes should be located as close as possible to the source of the noise so that they can block out sound waves. We have different compositions in our catalog, but in general, they all contain a sound-absorbing material inside that captures the sound waves and makes them bounce inside until they disappear.

Our screens have a modular design that makes them very easy to place, even by the customer himself. Our offer includes assembly if the client so requests, but the client could carry out the installation himself.

Metagreen Acoustic Barrier: a great option

Metagreen acoustic screens for chalets, or green panels, are metallic anti-noise screens that are perfect to be placed in this type of residential area, performing a double acoustic and aesthetic function, thanks to their green appearance that adapts to all types of homes.

The interior of the Metagreen acoustic panel is identical to other models of screens, with rock wool inside to absorb noise. But on the side facing the house, a green plastic mesh is placed facilitating the growth of vegetation and making a more nature-like environment. This solution can also be implemented on the exterior face facing the street. Without a doubt, it is one of the best options when it comes to reducing noise in urbanizations.

From a regulatory point of view, like all the products manufactured and marketed by Metalesa, acoustic panels for chalets are tested based on current regulations. In this case, they have been acoustically tested according to the UNE EN 1793 standard and mechanically according to the EN 1794 standard. The latter guarantees that the noise reducing elements withstand wind loads in a robust way.

The Metagreen panel has numerous advantages, which we can specify in the following:

  • Ecological and natural appearance.
  • Excellent insulating and absorbent acoustic effect.
  • Presents a long durability when going through an anticorrosion galvanized treatment.
  • Panels made with recyclable and sustainable materials
  • Ease of installation as it is a panel only 0.5 cm wide, which facilitates its handling. It is a lightweight construction that provides great acoustic insulation.

Journée mondiale de l'éducation à l'environnement pollution sonore

Other Acoustic barriers/ screens


Methacrylate acoustic screen for chalets

This type of insulating panel is made up of a polymethacrylate sheet with a thickness of 15 or 22 millimeters, and a bearing structure made up of HEA / HEB posts with a welded base plate, hot-dip galvanized, and painted with polyester powder paint.

They can be transparent or colored, your choice will depend on what best suits the style of your home. In addition, they are also easy to install, have long durability and provide optimal insulation.



Wooden acoustic screen for chalets

Like the Metagreen screen, the wooden acoustic barrier also provides a touch of 'nature', in addition, there is the possibility of making different combinations with vertical and horizontal boards, achieving different aesthetic effects.

The acoustic insulation is achieved thanks to the rock wool incorporated inside, with a black veil covering that protects the rock wool from inclement weather.



Design Acoustic Screen for chalets

Functionality does not have to be at odds with aesthetics, and the design acoustic barrier for chalets is proof of this. We design screens according to the needs of our clients and what we see the market demand, so that there are multiple possibilities.

barrera acustica de diseño

Without a doubt, installing an acoustic screen in your chalet is a totally wise decision if what you are looking for is to isolate yourself from noise. On the one hand, you will be able to enjoy being calm in your house, oblivious to what happens outside and, on the other hand, you will achieve aesthetics and privacy. Also, if you decide to install the Metagreen acoustic screen, you will soon have a garden surrounded by greenery! An ideal home free from annoying noise.

To ask us for a quote or more information, do not hesitate to contact us. Call us at 96 088 99 44, or write to us at

Anti-collision bird screens, one less problem on roads and railways

We understand our commitment to safety as something global. Roads and railway areas are one of our most notable areas of action, and generally we show you everything we can do to guarantee the safety of people in these environments, but this does not mean that we forget other factors such as the environment , specifically the protection of birds, so necessary for the balance of our ecosystems. Through our anti-collision bird screens we do our bit to prevent their migratory flows and flight areas from interfering with road or rail traffic.

We protect the birds from the roads

The scientific journal Frontiers in Ecology and Environment recently published a study whose results estimate that around 194 million bird deaths occur on European roads each year. Without a doubt, these are alarming figures. For this reason, from Metalesa we offer our services for the design, manufacture and installation of anti-collision screens for birds, both on roads and in railway areas.

In many cases, the death of birds occurs either when they collide with glass structures on the roads - difficult to see due to their transparency - or when they hit high-speed trains. They are problems that require solutions.

Anti-collision bird screens are specially designed to be seen by birds, to prevent them from going down to the level of roads and train tracks, and thus prevent them from colliding. In this way, they act as a visual barrier.

In addition, although the main objective of this type of screens is the protection of birds against cars and trains, it is true that they help to preserve the safety of people, avoiding distractions and the 'scares' that can occur when crossing a bird.

Our Bird Collision Screens for roads

At Metalesa we have a wide variety of anti-collision bird screens for roads that are specially designed to fulfill their protective function.

All screens are custom designed based on the aesthetic and environmental needs of the environment. We have several models such as anti-collision bird screens made of corrugated or smooth sheets, opaque or transparent methacrylate, with straight or curved posters ...

In addition, all our screens, in any of the models and finishes that we offer, undergo an effective anti-corrosion treatment to avoid wear caused by the passage of time and the adversities of the weather.

Their usual area of ​​installation are viaducts and bridges, where they usually cross embankments or ravines where the passage of birds is common. Our service includes all the structural calculation associated with its anchoring and foundations, as well as the wind load resistance studies typical of this type of elevated structures.

Being located on elevated structures, bird collision screens are often installed behind metal parapets of different levels of containment, for example META13 (metal parapet H2) or META16 (metal parapet H3).

Our Bird Collision Screens for railway areas

From Metalesa we carry out comprehensive projects in railway networks in order to guarantee the safety of passengers and fauna that may cross their routes. Equipment such as ADIF railings, ADIF vandal-proof fences, enclosures for stops and of course, anti-collision bird screens for railway areas.

In the same way in the case of roads, our service includes from the optimization and calculation of the structure, to the manufacture and installation of the screens, which can have different anti-corrosion treatments according to the client's requirements.

Examples of this are these projects in sections of the AVE

As we have mentioned before, at Metalesa we try to offer road safety solutions at all levels, and the anti-collision bird screens are proof of this. For the design, manufacture and installation of anti-collision screens for birds, either on roads or in railway areas, do not hesitate to contact us.

Panel acústico metacrilato

Nose limits in Leisure Premises and how to fulfill them

All cities have their leisure activities, which is something necessary as it invites to enjoyment. However, in some situations this leisure crosses the limit of fun and becomes quite a serious problem, even more in summer time. The noise emitted by the music of nightclubs, game rooms, pubs, terraces and the bustle of people, usually causes the discontent of the residents who live in the area, affecting their rest and health. The noise pollution generated by entertainment venues is a problem in today's cities that we cannot ignore, which is why at Metalesa we provide solutions thanks to our acoustic screens.

In addition to complying with the regulations, the installation of anti-noise screens for the acoustic insulation of leisure establishments is also a good way to save yourself from misunderstandings with the neighborhood, improving the image of your business in the area since the neighbors will have no complaints about its operation.

Nose limits in leisure premises

According to Law 7/2002 on protection against noise pollution, these are the maximum noise levels allowed for leisure venues:

  • Clubs: 104 dB (A)
  • Rooms with a musical setting: 90 dB (A)
  • Game rooms: 85 dB (A)
  • Bars and restaurants: 80 dB (A)

The problem arises when, despite the fact that these establishments comply with acoustic regulations, it is not enough to avoid that the neighbors who live around them are not affected by the noise pollution that comes from this type of premises.

How to meet the noise limits in leisure premises

At Metalesa we care about protecting what matters most to us: people. All our products and services are intended to guarantee security, and in this case we make sure to protect them from noise excess with the installation of acoustic screens.

The urbanizations or buildings that are close to nightclubs often have to withstand the noise that comes from them. The reverberations of the music as well as the noise caused by the entry and exit of people from a leisure venue are always a problem. For this reason, at Metalesa we design, manufacture and install acoustic screens around entertainment venues.

We are aware that an acoustic screen is not usually a decorative element, therefore we have acoustic screens with an aesthetic finish that will make them fit perfectly with the design of your leisure business.

But what are the steps for the installation of acoustic screens in my entertainment venue?

Conducting an acoustic study

The first step when carrying out an installation of acoustic screens is to carry out an acoustic study to obtain noise maps. Their evaluation allow us to give all the necessary information to decide the optimum product to isolate the noise source. At Metalesa we work with the leading companies in the acoustic studies sector to always offer the best results.

Once we get the data from the study, we will know how and where to put the acoustic screens. Then we carry out the manufacture and installing operations. Finally another acoustic study is carried out in the area to check the effectiveness of the installation and verify that we have eradicated the noise problem.

Acoustic screens for entertainment venues

Urban Acoustic Screen

The urban screens that surround the exteriors of the terraces of the leisure venues fulfill a double function: environmental and aesthetic. They are made up of acoustic panels and a supporting structure that supports them.

They can be made of three types of materials: metal, methacrylate or wood. Each one has advantages that make them optimal for each type of location. For example, metal or wood, in addition to improving acoustic behavior, achieve a privacy effect; If your place is a more intimate place, these will be ideal.

On the other hand, within the urban screens, the transparent methacrylate acoustic screens manage to bounce the noise towards the interior of the premises without giving up the views. If your place has wonderful views of the sea, you can take advantage of the installation of methacrylate acoustic screens to isolate the noise without missing the view. Without a doubt, this type of panel is a very good option for leisure establishments, since it provides a lot of style and, above all, allows it to comply with regulations.

Metagreen Acoustic Screen

The metallic screen with vegetal mesh is not only a very effective acoustic solution, in leisure establishments it fulfills an aesthetic function that adapts to any type of design.

Inside, rock wool and other materials are placed, along with a green plastic mesh that facilitates the growth of vegetation on both sides. They are perfect for creating a vertical garden that, in addition to isolating noise, will help us decorate the walls of the premises.

Acoustic Design Screen

As mentioned above, at Metalesa we take care of offering a quality product that not only meets high expectations in relation to acoustic problems, but also at the level of design and adaptation to the space of our clients. In the case of leisure premises, it is evident that the acoustic screens, in addition to fulfilling their insulating function, must be visually attractive so that they do not clash in the decoration of the premises.

Our design acoustic screens guarantee maximum noise absorption and great durability, in addition, we offer various alternatives such as anti-corrosion, hot-dip galvanized, thermo-lacquered treatments and the combination of both treatments.

Is the acoustic insulation of the leisure venues compulsory?

In Spain, municipalities and autonomous communities are given the power to regulate noise in the areas where leisure venues are located. In this sense, if necessary, it is mandatory in order to comply with the regulations in force in each community and to ensure the well-being of the residents who live in the area.

In any case, in order to ensure that it complies with regulations, it is best to achieve the maximum possible insulation. In this way it will be able to adapt to any regulation, even when it becomes more restrictive, which can happen at any time.

Noise Penalties in entertainment venues

The truth is that in Spain there are numerous sanctions in cases where discotheques and party places exceed the acoustic limit established by law. The communities with the most penalties are Catalonia, the Balearic Islands, Madrid, Andalusia and Valencia.

The law acts and sanctions this excess noise, with different types of fines depending on the case:

  • Minor: the fine to pay is 600 euros.
  • Serious: the local must pay a fine of between 601 and 12,000 euros.
  • Very serious: they must pay between 12,001 and 300,000 euros. In addition, the revocation of the validity of the municipal installation or activity license or the suspension thereof for a period of time between one year and one day and five years. In fact, the authorities could close the establishment for a certain period of time.

If you are the owner of a leisure venue, do not hesitate to contact us. It is not worth risking a possible fine, nor to earn the discontent of your neighborhood. Bet on the safety, health and aesthetics that our acoustic screens guarantee. To request a quote call us at 96 088 99 44 or send us an email to

estudio acústico

What it is an acoustic study and why it is so necessary

Noise pollution is a current problem that we face every day. Its harmful effects impact both on the well-being of people and on the environment, so society as a whole is becoming more aware of it, and it is not surprising that the European legislative and regulatory framework is forcing public authorities to implement the necessary measures to guarantee our well-being. One of these measures is the performance of acoustic studies in projects through advanced noise mapping tools to measure the noise pollution of a specific area and adopt correct and optimized solutions. An environmental acoustic study is the tool that should be carried out on roads and urban infrastructures in order to determine if they comply with acoustic regulations.

Noise pollution and its effects on the population have been a generally ignored factor in urban planning in many cities, except for very obvious cases. In Spain many residential areas have problems of this type due to the settlement of urbanizations in areas close to transport infrastructure or industries. In response to this problem, it is common for residents to join neighbourhood associations that seek to exert pressure on the public administration to resolve their complaints.

Noise pollution in housing estates therefore affects people's health and the environment in general, fauna and flora. But not only that, it also has economic effects. The price of a home in a residential area with severe noise pollution can affect the price of the property up to 30%, since potential buyers associate noise with a lower quality of life, and therefore are willing to invest less . In case of the appearance of noise after the commissioning of the urbanization, it could be devalued and the investment of the residents very affected.

Our knowledge as manufacturers of acoustic solutions, together with the complementary capabilities of our collaborators, allows us to provide answers and solutions to all questions related to noise pollution.

From Metalesa, in order to offer our acoustic services, we subcontract these acoustic studies to the best companies in the sector.

Types of Acoustic Studies

To begin with, it is important to distinguish between two types of acoustic studies:

Acoustic building studies

They are intended for the technical improvement of the sound of a enclosed places as small businesses, leisure areas, discotheques, etc. This type of study is not part of our offer of services.

Environmental acoustic studies

These are the studies that we carry out in Metalesa, where the issue is to evaluate the sound propagated in an external environment, representing it through noise maps. Within this type of study we find two categories:

  • Infrastructure or facility projects: Any new highway, railway or large industry project usually includes an acoustic study to measure the temporary or permanent noise impact that will provoke in the area, and determine if it will be necessary to adopt measures like acoustic screens.
  • Urbanization projects: new urban developments must undergo an assessment of the noise level that they produce, as it can affect other buildings or homes in the area. In the event that the acoustic study determines that the legally established noise level is exceeded, the acoustic insulation of the facades should be carried out.

In addition, it also seems important to us to emphasize that there are two types of noise that can be analysed: on the one hand, airborne noise, transmitted by the air and coming from sound sources such as music equipment, smoke extractors or refrigeration equipment; this is the type of noise that we take care of at Metalesa. On the other hand, there is structural noise transmitted by vibrations of the structure.

What is the process to follow in an acoustic study?

  • First, it is necessary to determine if the area to be studied is subject to noise pollution.
  • The experts install their measuring equipment to evaluate whether the sound level is inside or outside what the norm allows. The time required to carry out the study is highly variable, from one or two hours to even leaving the equipment connected for a day, thus being able to analyse the variability of noise levels over time. This acoustic study depends on many factors, and all of them are taken into account when measuring the sound impact and determining a result of the study. For example, if the area is a closed tunnel, or if it is a road area with homes nearby, if these homes are high or low... These variables and many others will be surely taken into account by the expert for the viability of the acoustic study and the assessment of the results.
  • Noise maps are obtained through acoustic studies, which normally allow one or more solutions. Acoustic screens is the most commonly adopted to attenuate it. Once installed, experts will return to check the impact of the anti-noise screens and verify if the acoustic problem has been solved.

It should be noted that we can not only carry out these studies in highway or urban areas, acoustic studies can also be carried out in public places of concurrence.

Two types of acoustic screens

In the event that the acoustic study concludes that the noise levels are above what is established, at METALESA we take care of installing the acoustic screens so that the sound waves bounce or are absorbed. We can distinguish two types:

Reflective screens

They are used in areas where there is nothing on one side of the barrier, so what they do is bounce the sound to that side.

Absorbent screens

These screens are used when there are homes, buildings or any infrastructure on both sides. In this case the noise does not bounce, but is attenuated and dissipated by absorption. The sound that enters the barrier is converted into movement, which vibrates the material of which the screen is composed, which is usually rock wool. This material allows the attenuation of noise.

Is acoustic studies mandatory?

The execution of an acoustic study is mandatory for all situations where noises levels are usually higher than 70dBA. These places can be bars, gymnasiums, cinemas, game rooms, carpentry workshops, car workshops, discotheques... The specifications of each location are included in the municipal ordinances.

As for the road areas, as we have previously commented, the most usual thing is that acoustic studies are carried out in newly created projects.

Without a doubt, conducting an acoustic study is a way of ensuring legal requirements, and the first step to protect people’s quality of life and their the environment. With the installation of our acoustic screens we try to provide a solution to the noise pollution that affects certain areas. Do not hesitate to contact us if you want to carry out an acoustic study, together with our trusted supplier companies we will take care of carrying out the entire process from start to finish.

pantallas acústicas para la contaminación acústica

How to protect an urbanization from noise

In general, we associate the term 'noise pollution' with the noise that is generated due to road traffic or industries. Sometimes residential areas are not as far from roads or industrial estates are they should be. It can also occur an excess of noise for various other reasons that can diminish the quality of life, and even the health of the people who live in them. Whatever the focus of the noise is, at Metalesa we have the solution. Depending on the origin of the problem, we can install acoustic screens on the roads or directly surrounding the residential areas. With this aim, it is necessary to carry out an acoustic study to determine the specific area to isolate and therefore where the noise screens should be built. The acoustic study provides crucial information to improve the solution and achieve the planned objectives with an optimised solution.

Beyond noise... an economic problem

Except for very obvious cases, noise pollution and its effects on the population have generally been an ignored factor while urban planning in many cities. In Spain many residential areas have such problems due to the settlement of urbanizations in areas close to transport infrastructure or industries. In response to this problem, and lacking the authorities initiative, it is common for residents to create neighbourhood associations that seek for exert advise to make pressure on the public administration and finally resolve their complaints.

Noise pollution in housing estates therefore affects people's health and the environment in general, fauna and flora. But not only that, it also has economic effects. The price of a home in a residential area with severe noise pollution can affect the price of the property up to 30%, since potential buyers associate noise with a lower quality of life, and therefore are willing to invest less. In case of the appearance of noise after the commissioning of the urbanization, it could be devalued and the investment of the residents very affected.

Urban Noise Screens

Urban noise screens are those that we place as an enclosure for urbanizations and as the main mechanism against noise. The reasons for implanting acoustic screens in housing estates can be diverse: proximity to roads with heavy traffic, proximity to bus or train stops or stations, poorly soundproofed industrial estates, nightlife area...

If the acoustic study shows the convenience of placing screens around the urbanization, our proposal is to place urban screens. These panels for private areas are mainly made up of two pieces:

  • Acoustic panels: These panels make up the absorbent and reflective part thanks to a design that has been used for other environments for many years.
  • Supporting structure: consisting of HEA/HEB-type uprights with hot-galvanized welded base plate and painted with polyester powder paint.

Regardless of their configuration, all the noise screens have been rigorously evaluated in certificate laboratories by the corresponding standards, guaranteeing maximum sound absorption values. Furthermore, at Metalesa we are concerned with both the functionality and the aesthetics of our products. At the same time that it ensures the elimination of the acoustic problem, it allows an excellent integration with the style of the urbanization, for which we adapt our solution to the client's aesthetic specifications. For example, urban screens can be made of metal, methacrylate, or wood. The metallic ones can be painted depending on the desired colour, by means of a thermo-lacquering process that guarantees a perfect finish of great durability. The supporting structure will be always metallic, so it can be thermolacquered no matter what material has been chosen for the panels.

Description of our noise acoustic screens

As we have already mentioned, if the acoustic study provides this conclusion, we will proceed to install anti-noise screens between the urbanization and the area that acts as the focus of noise pollution. At Metalesa we have various types of acoustic panels:

Metal steel or aluminium screen

We have a wide range of fully effective metal steel and aluminium screen panels to eliminate noise. They are installed and tested on roads across Europe. Its components are the following:

  • Absorbing face oriented to the focus of noise: It is a multi-perforated metallic element, which allows the noise wave to penetrate inside the panel and dissipate in the absorbent material.
  • Acoustic insulation: The interior of the panels is composed of rockwool of different thicknesses and densities depending on the acoustic parameters to be achieved. This material allows the dissipation of sound wave energy thanks to its fibrous and elastic nature.
  • Reflective face: The rear reflective face is unperforated and leaves a gap in between with the rockwool, creating an acoustic chamber that reflects the sound waves back into the absorbent material.
  • Supporting structure: It is made up of HEA/HEB type uprights, with hot-dip galvanized welded base plate and painted with polyester powder paint.

This type of acoustic screens allow effective noise isolation for the well-being of the residents of any urbanization, in addition to standing out for its excellent landscape integration and durability.

Green Panel

Green panel is a type of acoustic screen that integrates perfectly with the landscape and allows generating a greener environment thanks to the possibility of planting vegetation on them. In addition to rockwool, it also has an integrated green plastic mesh that facilitates the growth of vegetation on both sides.

Methacrylate Panel

Methacrylate Panel can be installed both on road and railway infrastructures and in housing estates, and can be both transparent and have drawings as required. Like the other panels, they are easily installed and very resistant, so they hardly require maintenance. They are composed of a polymethacrylate sheet and a supporting structure with a hot-welded base plate and painted with polyester powder paint.

Wood Panel

The wood acoustic panels are also filled with rock wool. They also have the advantage of being able to combine horizontal and vertical tables, achieving different aesthetic effects.

Summing up, the quality of the environment in which we live our lives is increasingly an objective that we must all empower to ensure the well-being of our people. Noise pollution is one of the factors that can most negatively affect this objective, which is why at Metalesa we take care of the process from very beginning to its end, from the acoustic study to the manufacture and installation of the acoustic screens, from the problem analysis to the solution in place.

If you need our acoustic services do not hesitate to contact us by calling 96 088 99 44, sending an email to or directly through our contact form.

How to make a sports complex look new?

All cities, large or small, have one thing in common: their love for sports. Some of them are capable of hosting many facilities, while some others hardly have a sports hall which they know how to get the most out of. A football, basketball, handball or any other sport team can be something iconic for a city, which is partly due to the sports complex where they train and compete in regional, national and international championships. For this reason, it is becoming more important that sports complexes stand out for their structure and design, and thus generate pride and identification among the population.

As you know, since our very beginning, at Metalesa we have dedicated ourselves to ensure the safety and quality of life of what matters most to us: people. Our products are aimed at both road and urban safety and noise reduction. Therefore, we can get in charge that the sports complex of the clubs of a city have the space they deserve.

How do we help?

We reform and modernize sports complexes with the integration of acoustic screens on its façade. This includes:

  • Previous acoustic studies to define parameters to be achieved
  • Aesthetics are important. New screens will provide the facilities a facelift that will not go unnoticed: a quality material, striking colours... sports complexes cannot be left behind in our efforts to modernize cities according to our philosophy of creating Smart Cities.
  • Noise pollution. Sports complexes are usually a big source of noise, usually generated by a passionate public. In addition, many facilities are also used as concert halls. To handle such challenges, our acoustic screens will be a success to guarantee the rest of the close neighbourhood and comply with the regulations on noise pollution in urban environments.

Acoustic Studies

Any project of such scope must be preceded by an acoustic study according to regulations in force. By using advance technologies, we will get as a result the parameters to be achieved, which will act as input requirements to the optimized constructive solution that must meet them. At Metalesa we have extensive experience in conducting these acoustic studies.

What characterize our acoustic screens to be integrated into sport complexes facades?

Minimizing the noise of sports complexes is possible thanks to the characteristics of our acoustic screens made with sound-absorbing panels:


  • Absorbent face oriented to the noise focus: absorbent face is multi-perforated. These perforations make it possible for sound waves to penetrate the panel and dissipate in the absorbent material located inside, thus minimizing noise.
  • Acoustic insulation: as an absorbent material, rock wool of different thicknesses and densities is used depending on the acoustic characteristics that must be met. The rock wool is integrated into the interior of the panels, so that a reduction in the sound level is achieved.
  • Reflective face: The reflective face leaves a space with the rock wool, generating an acoustic chamber, so that the sound waves are reflected back into the absorbent material.
  • Supporting structure: consisting of HEA / HEB type uprights with hot-galvanized welded base plate and thermo lacquered with polyester powder paint. In any case, the supporting structure solution will be adapted to address the particularities and limitations of each project.

Like all our products, metal acoustic screens have been tested under rigorous evaluations to guarantee their acoustic and mechanical behaviour. This evaluation is based on the EN 1793-1 standard, which allows us to obtain the maximum sound absorption and insulation values ​​for the screens we install. Our team of expert engineers and calculators manage all the factors necessary to make the installation of the screens a complete success.

Sport complexes reformed by METALESA

At Metalesa, our commitment to sport is latent. Did you know that we are official sponsors of Atlético Baleares? In addition, we have transformed their football stadium in Mallorca. Here we leave you some photos!