Prolisur Acústica is the leading Andalusian company in insulation solutions for building and industry since 1980.

Our acoustics department in Sevilla, made up of expert noise control engineers, designs guaranteed solutions in soundproofing, adaptation or acoustic conditioning for projects of any size.

We also have an acoustic laboratory, which allows us to carry out noise, reverberation or vibration measurements, as well as carry out tests with any system that requires certification.

Testimonials

Alma Duarte Torrejón
26/06/2022

Very happy with the attention and the quality of the acoustic fences. I recommend them.

Grupo Rocamer
13/06/2022

me cancelaron un pedido por que no tenian, me devolvieron el dinero y todo correcto. aunque el articulo en su web se puede seguir pidiendo lo cual me choca un poco...

Alexis Mesa
15/05/2022

I am very grateful for the professional attention I have received at all times. The acoustic study of my cafeteria has been spectacular and has a modern design that has delighted our clients.

Grupo Emprendedores BNI Huelva & Aljarafe
05/05/2022

Working with Prolisur has been very satisfying. We have achieved the acoustic improvement that we needed in our spaces. Thank you for your professionalism and involvement.

Jesús González
01/05/2022

The first time I called them was in 2018 because the pool was very poorly used and the masons who came made me botched, so I decided to call this company and it was a 100% success. The pool today is like new. 2 months ago I called them again to get an estimate for humidity in the facade that gives shade all day and they have already solved the problem. Chapo!

Marcos Alfonso
15/02/2022

Very well explained and attended everything

Jorge Magaz
11/12/2021

The rock wool insulation in the air chamber does its job perfectly, you can tell from the first minute. In one day the thermally insulated floor

Alberto Muñiz
10/10/2021

From minute 1 they treated me professionally. I was asking questions because I wanted to thermally insulate my house without doing any works, since I recently renovated it. I would repeat again, I recommend this company 100%.

Fede Romero
08/10/2021

They have helped me a lot to solve the acoustic problems with the neighbors next door, serious professionals and kind.

Ana López
08/10/2021

We are very happy with this company and we wanted to give them our support.

Ainhoa Souto
25/05/2021

Very happy to be able to use the basement as an office. It was horrible with leaks and horrible humidity. It's like our basement has been changed. It has been incredible. Very professional.

Clara
20/10/2020

They answered my inquiry by email right away. They called me on my mobile to talk about my problem and try to find a solution. Unfortunately my case was not easy and although I did not assure that I was going to hire them, it was not a problem for their attention to be super professional and to dedicate the time that was necessary to explain everything to me. I would definitely recommend them for their professionalism and good customer service.

Guillermo Diaz Vargas
02/07/2020

professionalism

gabriel ramos garcia
05/03/2020

Magnificent professionals Quick, honest and with deep knowledge of the services and products they offer. TOP in waterproofing and sound insulation. 100% recommended from my experience with them.

Antonio José Zurita
25/09/2019

Magnificent professionals, serious and effective.

About noise in acoustics

What noise levels do we suffer in Europe and Spain

In Europe

40% of people residing in Europe, according to the World Health Organization (WHO), are exposed to noise from road traffic at levels above 55 decibels (dB), highlighting that more than 30% of those People experience noise levels above 55 dB at night.

At Prolisur we are well aware that these reference values, which are constantly exceeded in Spain, represent a significant risk. For example, the WHO tells us that for restful sleep, continuous background noise should be kept below 30 dB and isolated noise should not exceed 40 dB outside bedrooms.

The WHO also warns that to guarantee teaching and learning conditions, noise in classrooms should not exceed 35 dB.

In Spain

20% of Spaniards receive noise levels above the levels considered adequate for human health.

According to the 2012 Noise and Health Study, hospital admissions for treatment for cardiovascular causes in noisy areas increase by 5.3% for each decibel above the 65 dB threshold. From these noise levels, our body defends itself by activating nervous hormonal responses and causing an increase in blood pressure, heart rate and vasoconstriction, making the blood thicker. It also causes changes in the endocrine and nervous systems in Spaniards that affect the circulatory system and constitute risk factors for cardiovascular diseases.

Another conclusion of the 2012 Noise and Health Study is that, in people over 65 years of age, the chances of suffering a stroke increase by 14% for every 10 dB that the noise level increases above the recommended limits.

But how does it affect the human brain?

Noise also wreaks havoc on the brain, as Dr. Bronzaft has shown in a study she conducted at Washington Heights Public Schools (in Manhattan). Dr. Bronzaft measured the decibels in the building’s classrooms. Some of the classrooms were located on the Metro network and the students heard the rattle of the trains every five minutes. Other classrooms were away from the noise of the Metro, on the opposite side of the building. The difference? In sixth grade, the children on the noisy side were almost a year behind the children on the quiet side. Since then, the conclusions about the effects of noise have been supported by many other studies, both for students and adults.

Why choose Prolisur for noise control?

At Prolisur, a leading company since 1980, we are clear that noise control from the engineering field is a very important aspect for the proper development of daily life, in the residential environment, in education, in industry and in leisure.

We know that the noise generated by streets with traffic, industrial processes and some leisure activities is a problem that is increasingly worrying highly prestigious international entities and regulatory bodies in all countries. That is why the Prolisur team of engineers is passionately specialized and always updated in the area of acoustics, and especially in the design of the most efficient and least expensive corrective measures based on the best available techniques.

Types of environments in decibels (dBs)

–Silent environment (represented in light green)
– Little noisy environment (in green)
– Noisy environment (in orange)
– Annoying environment (in light red)
– Unbearable environment (in reddark)

Silence 0dBs
Footfall 10dBs
Wind in trees 20dBs
Quiet conversation 30dBs
Library 40dBs
Quiet office 50dBs
Conversation 60dBs
City traffic 80dBs
Vacuum cleaner 90dBs
Motorcycle with loud exhaust 100dBs
Rock concert 120dBs
Jackhammer 130dBs
Plane take off 150dBs
Explosion of an artifact 180dBs

What can we do to control the noise?

First, it has to be determined precisely what the extent of the noise problem really is. To do this, Prolisur makes its acoustic testing and analysis capabilities available to its clients based on an exhaustive knowledge of the techniques, as well as current regulations.

Once the noise problems suffered in an area or municipality have been correctly diagnosed, it can be controlled in two ways:

1. Acting on the noise source

Various measures can be taken for this, but undoubtedly one of the most frequent is to mitigate the transmission of vibration that produces noise. This would be the case of the vibration of a body, for example the refrigeration machinery of a room. This may not produce noise as such, but it can propagate a vibration through the wall of a building and when it comes into contact with a low-mass element, it becomes noise. This type of problem would be solved by placing vibration-dispersing elements, such as springs or inertia benches. You can see more information in our soundproofing and vibration control.

Shock absorber to reduce vibration noise

2. Controlling noise propagation

We can reduce the level of sound received by listeners by taking advantage of the dissipation of energy that occurs in the propagation of noise due to friction between particles as the sound wave advances in the air.

Another way to control noise is the attenuation that is produced by placing obstacles and barriers in the path of the wave in its propagation. The most used methods in this sense are the use of reinforcements of the acoustic performance of walls, ceilings and floors that limit the enclosures; the use of acoustic barriers and the use of acoustic encapsulations.

For their part, acoustic barriers are, in general, solid screens specially built to reduce the sound level behind them, thus protecting the listener.

Encapsulations or acoustic enclosures consist of enclosing the source in cabinets that reduce the level of emission outside the cabinets. These solutions are often used in building ventilation elements, normally installed on rooftops.

Encapsulated to reduce noise in ventilation system