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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 L1B
Conservation of fuel and power in Existing Dwellings

Our other services include:
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SAP Extension Assessment can also be known as:
SAP Extension Calculations,
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In County C
SAP Extension Calcs in Cambridgeshire, SAP Extension Calcs in Carmarthenshire, SAP Extension Calcs in Central, SAP Extension Calcs in Channel Islands, SAP Extension Calcs in Cheshire, SAP Extension Calcs in Clackmannanshire, SAP Extension Calcs in Conwy County, SAP Extension Calcs in Cornwall, SAP Extension Calcs in County Antrim, SAP Extension Calcs in County Armagh, SAP Extension Calcs in County Down, SAP Extension Calcs in County Fermanagh, SAP Extension Calcs in County Londonderry, SAP Extension Calcs in County Tyrone, SAP Extension Calcs in Cumbria,