Driving is a luxurious experience. Any kind of disturbance will limit the joy of driving. This article will tell you how to achieve a peaceful driving experience with the noise reduction properties of the glass used on windshield.
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Acoustic windshield helps in noise
Roads with heavy traffic often have noise levels of around 70 dB. However, normally we
should avoid being exposed to noise levels with more than 25 dB. When driving, noise can
be caused due to the wind, road or engine.
The technologies developed in an acoustic laminated glass are developed to combat levels
of noise penetration in cars, which have an effect on people's health, causing disturbance
and stress. The noise sources mainly come from the sound of the car's engine, air and other
environmental factors. With some specific acoustic laminated glass, there can be an
improvement of around 3-5dB, which is quite perceptible to the ear. With lower noise levels
the driver will become less tired, and it will also make communication inside the vehicles
more comfortable, that helps in contributing to overall safety.
What is acoustic glazing?
It consists of two or more sheets of glass that are bonded together with one or more
acoustic interlayers. These interlayers wakens the sound as it travels through the glass as it
acts as a noise-dampening core. Acoustic laminated glass benefits over normal laminated
glass from all the safety and security properties. Moreover, they also reduce the need for
heavier glazing, allowing car manufacturers to reduce vehicle weight.
Style and taste of acoustic glass
For many people a car is a reflection of their desired image or style, as it expresses who they
are and the type of things they enjoy. The car's glass is a reflection component of this. As
some people prefer the privacy with darkly tinted glass and others like more light and
Manufacturers are continuously developing advanced glass shaping techniques. That allows
the bending and shaping of the glass to offer car makers the freedom to achieve their design
and style concepts. According to the specific design characteristics, the glass manufacturers
also offer a range of different colours (e.g. green glass, dark tinted, etc.) that contribute to
the car's harmony and make the car model unique.
Properties of acoustic glass:
Acoustic glass, specialized PVB interlayer dampens external sound, helps in preserving its
aesthetic appearance it provides high-performance, durability, and multifunctional benefits.
The reduction in noise properties counterbalances the requirement for thicker and heavier
glass. The design of acoustic glass is as follows:
Three layers of PVB (Polyvinyl butyral) film in acoustic glass
The external two layers made up of normal PVB layer
There is one inner layer with specialized PVB composition that dampens acoustic and
Identification of Acoustic Windshield–
In case of damage the car insurance companies need to identify an acoustic car glass. Many
manufacturers use the word “acoustic” or an “A” to identify acoustic windshield. Others use
a specific product name or no designation at all. The identification of the windshield is
important to respect the integrity of the windshield’s original design.
The windshield consists as the main part of aerodynamic noise. It has the big area that is
established under a big angle of attack to the running stream and directly contacts to salon.
An acoustic windshield uses the damping polymer at speeds from 80 to 160 km/h that is
considerably the best indicators of noise absorption in the range from 500 to 5500 Hz. It is
now possible to increase acoustic comfort of the driver and passengers at regular and also
high city speeds. This is possible with a solution of a resonance problem of a windshield. The
durability of a windshield is defined by the range of temperatures for safety and has to
Other benefits of Acoustic windshield:
The use of thin glass makes a considerable contribution to economy of mass of the
car that, in turn, affects dynamics, fuel consumption and harmful emissions in the
A lighter windshield reduces the weight of the vehicle that increases MPG and
reduces the Carbon dioxide created by the engine.
In this urbanizing society, sound is one of the most significant causes of stress and fatigue. In
cities developing as metros such as Agra, Amritsar etc., and experts suggests that acoustic
windshield is highly recommended. Nowadays, people spend most of their time in their cars
and would like a quieter environment while driving. Acoustic glass enhances acoustic
comfort and peaceful drive.
Image Source: fuyaogroup.com.hk
Content Source: Medium