Acoustic Insulation And its Applications

In India there is so much variations in temperature in different parts from south to north and east to west so there is always requirement of Acoustic insulation in every building as walls in general are built with elements heavier than the partitions between different dwellings, they can be considered as already suitable for obtaining an evaluation index of soundproofing power higher.

It will therefore be sufficient to fill the inter space with self-supporting panels. As regards with other construction types and in different climatic conditions, there will have to be as many evaluations concerning the new values of the transmittance coefficient.

Acoustic Insulation India also known as Sound Proofing which defines as any means of reducing the intensity of sound. Soundproofing is any means of reducing the sound pressure with respect to a specified sound source and receptor. This is required for reducing Sound Abuse. This is mainly for providing comforts and cozy working atmosphere. The main application is on Buildings, Malls, Theaters, Hotels, Studios and Hospitals where simultaneous activities are going on.

There Are Several Basic Approaches to Reducing Sound Through Acoustic Insulation:

• Using damping structures such as sound baffles

• Increasing the distance between source and receivers 

• Using active anti noise sound generators.

• Using noise barriers to reflect or absorb the energy of the sound waves 

Two distinct soundproofing problems may need to be considered when designing acoustic treatments - to improve the sound within a room and reduce sound leakage from adjacent rooms or outdoors.

Acoustic Insulation India can be increased by using double walls. However, this can be done in the case of lightweight walls, as the heavier (and more insulating) the wall, is, the more difficult it will be to increase the insulation. The solution is to build two single walls and space them a certain distance apart. This assembly will provide greater insulation than a single wall of equivalent mass, and represents a mass-spring-mass system.

Soundproofing can suppress unwanted indirect sound waves such as reflections that cause echoes and resonances that cause reverberation. Soundproofing can reduce the transmission of unwanted direct sound waves from the source to an involuntary listener through the use of distance and intervening objects in the sound path.

The insulation can be increased by fitting a flexible, absorbent material, such as rock wool, in the chamber, so that the spring effect is increased and the stationary waves are eliminated. Another effective method, particularly for very rigid walls, is to use the diaphragm effect. This consists of filling the cavity with a material comprising a thin membrane with very low effect.

Acoustic Insulation is Used in Many Ways, The Applications Includes:

• Acoustic insulation is used in ceilings, floors and refurbishing walls.

• Acoustic insulation is used in lightweight metal or wooden, roofs and floors.

• Acoustic insulation includes in drainpipes, conducts, engines.

• Damping of metallic structures.

• Acoustic insulation is used for gypsum board partitions and ceilings, metal panels.

• Sealing of joints and overlaps.

• Acoustic insulation is used for Cavity walls.

Uses of Glass Wool insulation

Glass Wool Insulationis one of the most widely used forms of insulation world-wide because of its thermal and acoustic properties, light weight, high tensile strength and exceptional resilience. Glass wool is one of the most dominant types of insulations preferred in applications with service temperatures ranging upto 250C.

Image Source: TwigaFiber.com

It is made from sand and recycled glass. This blend is melted, spun into a fibrous mat and bound together by resin. The material’s texture is similar to wool, hence the name ‘glass wool’. If you inhale glass wool fibres into your lungs during installation, most fibres dissolve inside your body and disappear quickly with no adverse health effects.

The lightweight of Glass wool also offers significant advantages during transport and installation. In addition, Glass wool is chemically inert and has no impurities such as iron shots, sulphur and chloride. The product is non-corrosive to metal and does not support mold grow. It is manufactured from renewable raw materials and is environmental friendly in every stage.

Image Source: TwigaFiber.com

Glass wool is formed into products with various thickness and densities. It comes in the form of rolls and slabs with or without Aluminum foil. Glass wool is chemically inert. Application does not cause or accelerate corrosion. Glass wool is rot proof and odorless. It is non-combustible, non-emission of dense smoke and toxic gases, on depletion of oxygen (high oxygen index 70%).

It is inorganic and does not encourage growth of fungi and vermin.

Glass Wool Insulation Advantage:

• Heat Insulation and Thermal Preservation glass wool
• Low conductivity factor
• Noise Insulation and Sound Absorption glass wool
• Water Proof Moisture Proof glass wool
• Glass wool with Stable physical and chemical properties
• Antisepsis, ageing resistance, and anti corrosion, ensuring a healthy environment

Glass Wool Insulation Application:

• Heat preservation for steel structure building.
• Heat insulation for wall and roof of house to save energy
• For indoor partition wall, Train compartment.
• Making and high buildings required to be fireproof,heat resistant and sound insulation.