Investigation of the sound insulation performance of balcony window through field measurement

현장측정을 통한 발코니 창호의 차음성능에 관한 연구

  • 주문기 (목포대학교 친환경건축연구센터)
  • Received : 2009.09.09
  • Accepted : 2009.10.07
  • Published : 2009.10.31

Abstract

As with the disappearance of a living room window due to the trend in apartment housing construction that prefers a larger, expanded living room, the sound insulation performance of the balcony window is becoming an important factor to determine the level of indoor noise at an apartment unit. Considering that the indoor noise inside an apartment unit is mandated by law at or below 45dB(A), the balcony window is increasingly assuming an even more important role. Sound insulation performance of the window was measured by examining differences in data involving varying angles of incidence of the sound source as obtained from the same balcony window. Also, acoustic intensity measuring was performed at and around the window to determine its sound insulation quality. Results of measuring on the sound source's angles of incidence indicated that the performance showed some differences in lower frequency ranges, though with no significance. Intensity measuring results showed that the sound insulation performance was reduced near the connection part of the window and the window frame.

Acknowledgement

Supported by : 한국과학재단

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