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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 L1A
Conservation of fuel and power IN NEW DWELLINGS

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LZC Report can also be known as:
Energy Statements, Low Zero Carbon Report,
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In County S
Energy Statement in Shropshire, Energy Statement in Somerset, Energy Statement in South Yorkshire, Energy Statement in Staffordshire, Energy Statement in Stirlingshire, Energy Statement in Strathclyde, Energy Statement in Suffolk, Energy Statement in Surrey, Energy Statement in Swansea County,