Technical Infomation

Rating of Sound Insulation & Examples of sound insulation

Rating of Sound Insulation
The sound insulation performance can be described over a range of frequencies as the Sound Reduction Index in dB. The Powershield range of Acoustic Doors provides a variety of sound reduction capabilities.


Examples of sound insulation
To maximise sound insulation, it is necessary to minimise vibrations in and through a structure and hence minimise transmission. The degree of sound transmission will depend on a number of factors: mass, stiffness and insulation.

Powershield Acoustic Doors are manufactured from steel providing greater mass than other raw materials. Through extensive research our core materials and combinations have been developed to improve both insulation and stiffness.

If you require higher Rw rating product, please contact us on +44 (0)28 9266 2200 or AASDsales@assaabloy.com