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![Did you know Lewisham](/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
![Did you know Lewisham](/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
Part L2A
Conservation of fuel and power in new builds other than dwellings
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