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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 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 E
Resistance of the Passage of Sound

Isle of Man - Display Energy Certificate - 0161 403 0129
The office that covers this area is: Manchester
The towns & cities that are covered within this county are:
Douglas, Peel,
Phone Number: 0161 403 0129 Email: isle-of-man@e2consultants.co.uk
Our other services include:
Display Energy Certificate can also be known as:
DEC,


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