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Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more

Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more
Part E
Resistance of the Passage of Sound

Our other services include:
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Domestic Code Air Infiltration Survey can also be known as:
Energy Audit, Thermal, Code Air Infiltration Survey, Heat Loss Survey, Domestic Building Thermal Imaging Survey, Thermography Survey, Domestic Energy Audit, Domestic Thermography, Domestic Thermal, Domestic Thermal Imaging, Domestic Thermal Imaging Survey, Thermography, Domestic Thermal Imaging Inspection, Domestic Heat Loss Survey, Domestic Thermography Survey, Thermal Imaging, Building Thermal Imaging Survey, Thermal Imaging Survey,
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Company No. 06728970