SoundProofing

Soundblocker - Acoustic Data

There is no Building Regulation requirement for sound insulation between offices or other rooms within a commercial environment. A room to room sound level difference of 42-45dB is normally considered adequate, whilst a level difference of 50dB or more represents a high degree of speech privacy. The overall performance is only as good as the weakest element and it is important to ensure that the insulation achieved by the partition is matched by the ceiling system.

The Soundblocker System, designed by SRS, has been tried and tested over many years. It has been installed in many different types of contracts and offers a choice and performance to satisfy most demands. Soundblocker is the only system with a range of fully tested accessories for the treatment of downlights, modular light fittings and air diffusers.


Room to Room Sound Level Difference
 

Soundblockers have been tested in accordance with ISO 140-9 (rated according to ISO 717-1). Room to room normalised weighted, sound level difference (Dncw) ranges from 46-50dB.
 
Test Dncw Graph of Results
Soundblocker Office and Classroom (16mm), ceiling in both rooms treated Soundblocker 16 - D<sub>ncw</sub> 46dB Click here
Soundblocker Office and Classroom (16mm), ceiling in one room treated Soundblocker 16 (one room treated) - Dncw 43dB Click here
Soundblocker Office and Classroom (16mm), accessories used to treat modular light fittings and downlighters Soundblocker 16 (accessories used to treat modular light fittings and downlighters) - Dncw 46dB Click here
Soundblocker Office and Classroom (16mm), air grilles treated with SRS Acoustic Hoods Soundblocker 16 (air grilles treated with SRS Acoustic Hoods) - Dncw 43dB Click here
Soundblocker Confidentiality(25mm), ceiling in both rooms treated Soundblocker 25 - Dncw 50dB Click here



Sound Reduction Index

 

ISO140.3 : 1995 (rated to ISO717.1) Sound Reduction Index (Rw) ranges from 24- 33dB. Tests carried out at Sound Research Laboratories Ltd, Holbrook House, Sudbury, Suffolk.
Date of Tests 4.11.98. Test no. C/98/5L/7479/1

 

Test Rw Graph of Results
Soundblocker Office and Classroom (16mm) Soundblocker 16 - Rw 24dB Click here
Soundblocker Office and Classroom (16mm), downlighters treated with acoustic hoods Soundblocker 16, downlighters treated with acoustic hoods - Rw 24dB Click here
Soundblocker Private Office (19mm) Soundblocker 19 - Rw 26dB Click here
Soundblocker Confidentiality (25mm) Soundblocker 25 - Rw 27dB Click here
Soundblocker Entertainment (75mm) Soundblocker Plus - Rw 33dB Click here


Please note that these are laboratory tests and show insulation figures achieved in ideal conditions. SRS cannot accept responsibility for the performance of any system of which Soundblockers are only one part.


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