Effective acoustical soundproofing, Acoustical Contractors and Products dealers imported from USA

Effective acoustical soundproofing

Common Soundproofing Materials Effectiveness of Soundproofing

Which are the most effective soundproofing materials? The technique or effectiveness will greatly depend on the installation quality. The important things to pay attention are:

• Do not use any inflexible fasteners like nails and screws and make use of tough mountings wherever feasible.

• Make sure that everything is hermetically sealed.

• Pay special attention to all joints and make sure that they are caulked properly

• Next, check how effective the soundproofing system is at the junctions or edges.

• Can the sound "flank" or travel about the newly built barrier?

• There are times when you may need some strategy to take care of the "flanking noise".

• The easiest strategy to do this is to extend the soundproofing technique well beyond the boundaries of the surface concerned onto the abutting surface e.g., wall to ceiling and vice versa.

Theoretically, how effectively a material functions is generally indicated as a sound reduction or sound absorption measure, which is also expressed in terms of noise reduction and sound transmission classes (NRC & STC). There are several tables existing giving these measures for all kinds of materials. The traditionalists will try to convince you that the given figures stand for different things and therefore are not to be interchanged. Though this is a fact in several ways you need not be concerned about it. Here is a thumb rule: above 30 means that the material is good and above 50 means a complete and good soundproofing system.

If you have a sound absorbent material like batt insulation of fiberglass or soundproofing foam of open cell type, place it close to the sound source, not inside the room where you experience the noise. In case you can work only in the room getting the noise pollution adhere to sound barriers, which are also called sound reflectors. Fiberglass insulation has poor sound barrier (low STC) properties but its noise reduction coefficient (NRC) is fine when applied at the noise source. You must remember the terms "receiving", "noise source", "barrier" and "absorption" when you analyze the comments about the materials discussed below.

If you have a material that is rigid or dense the comments given may be indicating its effect in the form of a sound barrier kept in the room which receives the noise pollution. If it is a porous and flexible material, or has fairly low density the comments may be indicating the effect of the material in the form of a sound absorbent kept close to the noise source.

Obviously there are many exceptions to the above descriptions. Given in Parts 2 and 3 are few examples of barriers and absorbers. It is clear that several of the materials being hybrids possess both characteristics.

It is natural that you want cheaper materials having properties of good noise reduction whether as absorbers or barriers. You may come across a costly material being sold at a competent price or you might be living in a place where certain material is in good supply and therefore cheaper. Be somewhat imaginative in your planning and shopping.

Another aspect of importance to be considered is the frequency of sound intended to be weakened. Normally the performance of most materials is poor at lower sound frequencies like drums or stereo sub woofers or boom of cars. If you have low-frequency sound try heavier and/or thicker materials. As a thumb rule again, if your designs are always prepared for soundproofing of low-frequency you will definitely solve even your soundproofing problems involving high-frequency.

If you want to soundproof your home or workplace you can contact Interior Game.

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