Curiosities, solutions and regulations
Greetings!
In this guide we will show you the peculiarities, curiosities and regulations of the soundproof doors therefore trying to resolve all your doubts and perplexities regarding these fantastic acoustic insulation solutions.
Let's start from the assumption that we could all use a little more silence and tranquility. If you are trying to rest better or to stay focused when you work.
The soundproof doors they are a particular type of doors For acoustically isolate internal environments of a building.
They can be used in homes , offices , hotels , b&b , recording rooms or wherever it is necessary to isolate one room from another, avoiding hearing annoying noises such as voices, music and so on.
Never in what way? What noises can they combat? What degree of soundproofing is best? Which regulations must be followed?
Let's find out together
There are many solutions on the market ranging from products designed for different sectors .
In addition to choice colors and patterns which are closest to all the furnishings of your home, what matters to analyze about a soundproof door is its insulating property that is, its ability to not let that annoying sound that you don't want to hear pass through you at all.
WHY BUY A SOUNDPROOF DOOR COMPARED TO A NORMAL SWING DOOR?
Usually, those who purchase a soundproof door do so for two simple reasons:
- PREVENT NOISES FROM ENTERING IN IN YOUR OWN SPACE, IN YOUR OWN ROOM
- PREVENT NOISES FROM GETTING OUT FROM YOUR ROOM AND GO TO DISTURB OR SIMPLY MAKE YOUR DISCUSSIONS OR YOUR WORK HEARD BY OTHERS
Our customers often ask us this which soundproofing is right for them , so we will direct you to a small introductory guide that will clarify your ideas on the degree of soundproofing and how many Decibels to choose in the case of your problems!
What does acoustic insulation of a wall consist of?
It consists in the creation of multiple levels where the sound waves will impact and will try to pass through it. The best way to insulate a wall And rebuild the partition using acoustic insulation for partitions . Additionally, some may apply acoustic insulation products which guarantee the mass effect and halve the passage of annoying sound waves!
Within this system of soundproofing a space of at least 50 mm is left which is to be filled with sound-absorbing panels .
An optimum wall acoustic insulation it is only possible if the installation is carried out with care and by a QUALIFIED professional!
- The mortar must be applied to the vertical surface of the wall;
- Use different thicknesses helps stop multiple sound waves and frequencies ;
- Enter the wall cutting strips between wall and floor;
- AND' mandatory to apply sound-absorbing materials
Acoustic soundproofing of walls - DECREES, RESPONSIBILITIES AND SANCTIONS
The technical offices, which issue the building permit, must verify the correct permits, including the Prime Ministerial Decree 5/12/97.
A project that confirms is requested many times acoustic requirements at the time of construction, so as to avoid possible problems such as possible sanctions
Acoustic testing? Things? When and by whom is it requested?
It is mainly carried out once the works have been finished and the usability has been certified.
This is usually done MAINLY only for public purpose buildings!
The responsibility for the correct implementation of the works lies with the client and the builder as well as the works manager.
The Prime Ministerial Decree of 5-12-97 does not provide for direct administrative sanctions in the case of failure to verify acoustic requirements.
REGULATIONS AND CERTIFICATION
The Acoustic doors absolutely must have a certificate that guarantees soundproofing in accordance with the law.
Our doors have been examined and tested by an authorized institute, with a testing laboratory operating according to international regulations, which recognized that FIP Srl operates according to the regulations UNI EN ISO 10140-2 , ISO 9001, ISO 14001
The certification officially confirmed the judgment and reviews of our buyers, who have always appreciated the quality of the company's products and services, also regarding soundproof doors.
Furthermore, accurate checks and laboratory tests certify the perfect resistance of the doors to cleaning with the most common detergents and polishes on the market, the tightness of the glues and the resistance to humidity and/or water.
UNI EN ISO 10140 part 2, specifies the method for measuring the airborne sound insulation of building elements such as walls, floors, doors, glazing, small technical elements, such as air conveying devices, installation traces, and combinations thereof, for example walls and floors with false walls, false ceilings and floating floors.
Test results can be used to compare the sound insulation characteristics of buildings and building elements, classify elements according to their sound insulation capabilities, help design building products requiring certain acoustic characteristics, and estimate in-place performance in complete buildings. Measurements are carried out in laboratory facilities where sound transmission via lateral paths is suppressed. The results of measurements carried out in accordance with the document are not directly applicable to the on-site situation without taking into account other factors influencing sound insulation, such as lateral transmission, boundary conditions and total damping factor.
All parts of ISO 10140 have been developed to improve the provision for laboratory measurements, ensure consistency and simplify future modifications and additions regarding the mounting conditions of the elements tested in laboratory and on-site measurements. They also aim to present a well-written and arranged format for laboratory measurements.
LAWS AND SOUND INSULATION? LET'S FIND OUT MORE
The Prime Ministerial Decree 5/12/97 (framework law 447/95 ) establishes i passive acoustic requirements of buildings, in order to reduce exposure to excessive noise.
In summary, it establishes the performance parameters that buildings must possess, with regards to acoustic insulation from noises of different nature, such as:
1) planes or foot traffic between different housing units;
2) coming from outside;
3) of continuous and discontinuous operation systems.
REFERENCE INDEXES
1) R'w: index of apparent sound insulation power between partitions, defines the acoustic insulation performance of partitions (walls and floors) expressed in dB.
2) D2m,nt,w: acoustic insulation expressed in dB (for airborne noise coming from outside).
3) The n,w: normalized index of footfall noise level between environments of a finished attic.
4) LASmax: maximum level produced by technological systems serving discontinuous (bathrooms, plumbing drains, elevators, etc.).
5) LAeq: equivalent level of noise produced by technological systems in continuous use (air conditioners, heating, etc.).
EUROPEAN STANDARD ON ACOUSTIC INSULATION OF THE BUILDING
Acoustic insulation of buildings intended for habitation is regulated by a European law ( UNI 11367 of 2010) which determines its classification
This classification protects all those involved in the building process (builders, designers, producers, sellers) from potential disputes. Furthermore, it significantly influences the commercial value of the property , now have the class of certified acoustic efficiency of the real estate unit, has become an increasingly popular practice. Homes must have very specific requirements:
- R'w = 50 = soundproofing minimum by air between environments
- D 2m,nT,w = 40 = soundproofing minimum for building facades
- The n,w = 63 = maximum noise level allowed for trampling
- L Asmax = 35 = maximum noise level allowed for discontinuous operation systems
- L Aeq = 25 = maximum noise level allowed for continuous operation systems
Acoustic insulation reference indices (reverberation time (T) is not required for residential buildings but only for
schools and gyms
Acoustic Soundproofing: Prime Ministerial Decree 5/12/1997
Law no. 447 of 10/24/95 [1] establishes the fundamental principles of protection of the external and residential environment from noise pollution .
In the construction sector, he predicts acoustic requirements of internal sound sources to buildings and on passive acoustic requirements of buildings (art 3, point e, law n0447) and a decree on the design, execution and renovation of buildings (art. 3, point f, law no. 447).
Let's look closely at it CLASSIFICATION OF BUILDINGS (art. 2, paragraph 1, letter "b" of law no. 447 of 10/26/95)
Many studies and market research in the real estate sector reveal enormous differences in prices between silent buildings and noisy buildings equal to approximately 15% in favor of those with more silent , this should encourage companies to build buildings and spaces with a high acoustic standard!
SOUND INSULATION IN APARTMENT
What is Apparent Soundproofing Power?
Unfortunately it is not yet at all clear what the limits are in the case of buildings such as residences, artisan businesses, etc.
In this case the right idea of sticking to the values should be followed.
Apparent soundproofing power, why is it important for an apartment or a building in general? How is it calculated?
By apparent soundproofing power we mean the evaluation index, it refers to homes and residential buildings distinct from each other
It is measured on site by activating a noise source in one of the two rooms and detecting the sound pressure level in the two environments.
The higher the value of the apparent soundproofing power, the greater its performance will be.
R' = L1 - L2 + 10 log Ss/A
From the value R', we move to the index R'w
R'w = Rw - to
Let's explain what these values mean, where L1 and L2 we measure in dB and A and Ss we indicate them in m2
L1 average sound pressure value in the emitting environment
L2 average sound pressure value in the receiving environment
TO is the equivalent absorption area
Ss is the area of the separating element
to is the average of lateral transmissions.
Self at > 5 dB , we speak of strong lateral transmission, self 2 < a ≤ 5 dB we talk about medium lateral transmission, In the end , self to ≤ 2 dB we are therefore talking about weak lateral transmission
What is Lateral Drive?
You may be wondering what the lateral transmission you saw in the other paragraph is, here it is explained.
In practice it is when the sound 'enters' the structure from the non-insulated surfaces of the room, moves as vibration in the construction materials and is inserted again into other environments
Self at > 5 dB , we will have a strong lateral transmission, self 2 < a ≤ 5 dB we talk about medium lateral transmission, In the end , self to ≤ 2 dB finally, we speak of weak lateral transmission
Footfall noise
We talked about lateral transmission, about soundproofing power, now let's talk of the Footfall noise and what to do about it.
When The n,w < 5 5dB finds application in the most disturbing activities such as offices and commercial activities.
For footfall noise, the Prime Ministerial Decree does not specify that the requirements refer to floors between separate buildings.
Acoustic insulation
It refers to the noise of technological systems. This classification excludes systems, such as air heaters, channels with noisy intake vents, where the noise is generated within the environment.
In the table 4 let's see the limit of LAeq = 35 dB for buildings with category A, C, B, F And G and 25 dB(A) with categories D and AND.
Limitations of sound sources
the Prime Ministerial Decree of 14/11/97 [3] admits that a source can be disturbing if its level with the window closed, at night exceeds the value of 25 dB , the limit value should therefore be marked as 25 dB
WHAT IS SOUND? WHICH VALUES COULD BE HARMFUL TO THE BODY? HERE ARE VARIOUS INSIGHTS
The sound
The sound it is a component that is ALWAYS present in our lives, especially in the form of noise .
It is the sensation given by the vibration of an oscillating body.
THE NOISE
Acoustic phenomenon which is immediately followed by sensations of annoyance and
disorder that can also cause damage to things, animals and animals
people.
Windows and roller shutter boxes are the main culprits for noise coming from outside
THE FREQUENCY
Its unit of measurement is Hertz (Hz) (cycles per second)
It's the number of how many times per second does a sound wave oscillate .
It is quite easy to control or "reduce" noises with medium or high frequencies, it is much more difficult to intervene on low frequency noises
Why is sound measurement necessary?
Sound is calculated for immeasurable reasons, for example above all to take careful precautions necessary for a better life. But the measurements are also used to improve a product such as a sound-absorbing panel. Sound/noise is often measured in very noisy places such as factories, airports, motorways, clubs, but it can also be carried out in private homes to solve problems relating to acoustic insulation.
Sound measurement is mainly carried out via the sound level meter
The unit of measurement used for sound measurement is decibels ; hearing damage begins around 90dB if the exposure is very prolonged over time, while after i 120dB around you will start to feel pain.
There speed with which yes propagates a sound it depends on physical characteristics of the propagation medium . These characteristics are stiffness, density and temperature
There speed increases as stiffness and temperature increase and decreases as density increases
ASSEMBLY INSTRUCTIONS FOR SOUNDPROOF DOORS
Installing an interior door anti-noise is very important because you have to respect the technical characteristics of the door to be able to ensure its effectiveness indoors of the environment. The installation of the door must therefore be carried out by a expert installer and not by a simple bricklayer or installer, to avoid errors that could reduce and therefore make the noise reduction absolutely useless.
A soundproof door mounted in a wall is not adequate from the point of view of sound insulation, nor does it reduce efficiency.
STEP 1 . Installation in the door frame
Adapt the door frame to that of the counterframe, temporarily using wedges or similar until the door is set in the correct operating position.
Secure permanently by inserting shims between the fixed frame and the counterframe and immediately after blocking everything with through screws
Once the fixed frame has been fixed to the subframe, proceed to seal the space between the two using foam.
REMEMBER TO USE FOAM
WITH THERMO-ACOUSTIC EXPANSION OR ACOUSTIC SEALANT SILICONE.
As an alternative to assembly and fixing with a shim and screw, the doors can be mounted using only soundproof foam or silicone (which is more suitable for fixing to plasterboard)
FOAM AND SILICONE CAN BE SUPPLIED ON REQUEST BY FIP
The use of the door must be carried out with particular attention as incorrect use could cause the door frame to twist and malfunction, compromising all the work carried out.
STEP 2 . Assembly of joint covers
Measure the frame and decide on the joint system between the leg and head joint covers, in this case with a 45° or 90° system
Once the joint covers have been cut and the joint system chosen, take the tab and insert it into the slot, proceeding to finish and complete the assembly .
STEP 3 . Adjustment of the mobile threshold
VIDEO TUTORIALS
The threshold cabinet allows you to close the space of approximately 5-7 mm between the door and the floor (as indicated in the figure).
This space leaves free passage for air, cold and noise, the soundproof door draft excluder only needs to be adjusted correctly
The mobile draft excluder threshold is equipped with a rubberized gasket which allows you to seal the space between the floor and the door.
How does it work? Let's find out
Its operation is automatic, when the door is closed, the draft excluder blade lowers, closing the remaining space, preventing air, noise and dust from passing through.
The small piston located in the rear part of the door, when the latter is closed, the piston lowers the draft excluder threshold.
It may happen that the threshold does not rest completely on the floor, for this reason it is necessary to unscrew the piston a few turns to increase the stroke of the threshold and make it rest on the ground.
Our soundproof door configurator
Soundproof doors are the type of doors that help and improve the stay in a room or workplace.
As?
Eliminating those annoying noises coming from adjacent rooms or busy streets, noises that can have a negative impact on your work and especially on your rest!
Through our Tools, the SOUNDPROOF DOOR CONFIGURATOR, you can be guided in simple steps to view the product that best suits you, with many possible customizations and a very vast range of soundproofing, which increases as the noise you want to eliminate increases.
Use it now and receive an updated quote from our industry experts!
