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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
Sound Privacy
Privacy describes the perceived sound reduction across a wall, a function of both sound insulation and background noise...more
Part L1B
Conservation of fuel and power in Existing Dwellings
SAP Extension Calculation Quote in Penrhyndeudraeth
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