ERIC Number: ED035208
Record Type: RIE
Publication Date: 1968-Mar
Reference Count: 0
The Insulation of Houses against Noise from Aircraft in Flight.
Scholes, W. E.; Parkin, P. H.
Three groups of traditional houses were insulated against aircraft noise by double glazing and installing sound attenuating ventilator units. For upper floor rooms of two story houses, overall insulations of 35-40 dB were obtainable, providing transmission through the roofs and down flues were also reduced. The noise levels caused by ventilator fans operating at maximum output varied from 45 to 33 dBA, and the noisier units should be quieted to not more than 35 dBA. The numerical values of sound insulation in dB averaged over the range 100 to 3150 Hz, and the level reductions, outside to inside, in dBA, agreed closely. The helicopter noise source spectrum used for testing typified many broad band noise spectra, so this close agreement may therefore find application in practical noise control. (TC)
Descriptors: Acoustic Insulation, Acoustical Environment, Acoustics, Auditory Discrimination, Auditory Perception, Housing, Measurement Techniques, Mechanical Equipment
Publications Officer, Building Research Station, Bucknalls Lane, Garston, Watford, Herts, England (single copies free)
Publication Type: N/A
Education Level: N/A
Authoring Institution: Ministry of Public Building and Works, Garston, Watford, Herts (England). Building Research Station.