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![Did you know South_Norwood](/images/didyouknow.png)
Sound Intensity
Sound intensity's measured in Decibels (dB). An logarithmic scale where an increase of 10 dB gives an apparent doubling of loudness...more
![Did you know South_Norwood](/images/didyouknow.png)
Sound Absorption
The loss of sound energy when sound waves come into contact with an absorbent material such as ceilings, walls, floors and other objects...more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS
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Code Air Infiltration Surveys Quote in South Norwood
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