Acoustic Doorsets – successful testing for Bespoke

More Acoustic Doorsets were recently tested at the SRL (Sound Research Laboratories) by Bespoke Complete Services with successful results. Our success will allow us to provide more products and services to this ever demanding and increasing marketplace.

ACOUSTICS EXPLAINED:

The principles associated with testing for ‘acoustic’ or ‘sound attenuating’ doors & doorsets are very simple. The ‘specimen’ sample is fitted between a transmirring room and a receiving room (see pictures attached). Sound is then generated across the full frequency range determined by reference to the test standard in the transmitting room. The sound pressure levels on the receiving room side of the specimen are then measured. The sound pressure levels recorded in the receiving room can then be deducted from the sound pressure levels in the transmitting room with the resultant loss in sound presuure levels measured in decibels recorded at each of the measured frequences.

Acoustics is a term that is used in connection with doorsets and when considering the acoustics of a room or acoustics relates to a number of considerations. When sound is generated the ‘loudness’ refers to sound pressure which is expressed in decibels ‘dB’. When striking a surface some sound will be reflected, some will be absorbed and some will pass through the structure. Sound will also lose energy with distance. Other issues are the influence of sound created outside of the measured space and the ability of the structure to minimise the influence of an acoustic space by preventing or reducing the transfer of external sound through a structure. This is referred to as ‘sound attenuation’ and it is the measure that generally applies to structures between spaces. Thus when refering to acoustic doors we generally mean ‘sound attenuating doors’.

ISO 140 sets out the range of frequencies used for the purpose of testing for acoustic performances. The test procedure for the measurement of sound attenuation is described by reference to BS EN ISO 140-3: 1995

New facility-faster and better services

Veneered and paint grade doors and doorsets are now available on shorter lead times from Bespoke Complete Services. Completion of the brand new manufacturing and office extention have enabled us to increase capacity and introduce our fast track service for standard and bespoke fire doors and fire doorsets. A full range of services including NFR, FD30 & FD60 applications are available with a wide range of standard and bespoke vision panel options with an array of glazing options. Acoustic doorsets are available in 10 working days for both standard and bespoke sizes. Stock sized standard veneered doors are available in both FD30 & FD60 on our next day nationwide service.

Please contact the sales office with your enquiry for a same day quotation on 01254 777142