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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

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
Our other services include:
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Part G Water Calculation can also be known as:
Part G Water Calc, Part G, Water Calculations, Water Usage Calculation,
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Company No. 06728970
In County C
Water Calcs in Cambridgeshire, Water Calcs in Carmarthenshire, Water Calcs in Central, Water Calcs in Channel Islands, Water Calcs in Cheshire, Water Calcs in Clackmannanshire, Water Calcs in Conwy County, Water Calcs in Cornwall, Water Calcs in County Antrim, Water Calcs in County Armagh, Water Calcs in County Down, Water Calcs in County Fermanagh, Water Calcs in County Londonderry, Water Calcs in County Tyrone, Water Calcs in Cumbria,