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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

The Decibel Scale
Gives an approx of human perception of loudness. This is because the human ear has a logarithmic response to changes in sound level...more
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SAP Conversion Assessment can also be known as:
SAP Conversion Rating, SAP Conversion Calculations,
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Company No. 06728970
In County T
SAP Conversion Calcs in Tayside, SAP Conversion Calcs in Tyne and Wear,