An investigation of the protection of dwellings from external noise through facade walls
P. Gilbert, Centre scientifique et technique du bęĐatiment (France)., United States. National Bureau of Standards, Institute for Applied Technology (U.S.). Building Research Division
U.S. Dept. of Commerce, National Bureau of Standards, 1972 - House & Home - 24 pages
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absorbent lining absorbent materials applied additional for foreign angle of incidence Angles of Azimuth angles of elevation automatic data processing average balconies and loggias Bureau of Standards Center closed balcony dB(A door closed DWELLINGS FROM EXTERNAL Exponential horn LS external noise level Facade G facade wall facades fitted fagade faqade foreign mailing glaz glazing 3.6 rrr improve the sound incorporating sealed glazing incorporating traditional window increase in insulation investigation loudspeaker National Bureau normal glazing normalized sound insulation open 1.8 rrr open balcony overall insulation overall sound insulation physical measurement Protection of Dwellings reverberant sound pressure Scientifique et Technique sealed glazing 3.6 sound absorbent material sound insulation obtained sound insulation provided sound intensity sound pressure level sound waves Standard Reference Materials Technique du Batiment thick glass thick sealed glazing traditional window joinery types of facade Volume of test-room window closed window open window wide open