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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

How loud is too loud?
Noise above 85 dBA over time will cause hearing loss. In general, the louder the noise, the less time required before hearing loss...more
Part L1B
Conservation of fuel and power in Existing Dwellings

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Code for Sustainable Homes Daylight Calculation can also be known as:
Code Assessment, Sustainable Homes, Code for Sustainable Homes, CSH, C4SH,
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In County N
Sustainable Homes in Norfolk, Sustainable Homes in North Yorkshire, Sustainable Homes in Northamptonshire, Sustainable Homes in Northumberland, Sustainable Homes in Nottinghamshire,