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Appl. Sci. 2016, 6(11), 372; doi:10.3390/app6110372

Field Measurements of Water Supply and Drainage Noise in the Bathrooms of Korea’s Multi-Residential Buildings

1
Land and Housing Institute, Korea Land and Housing Corporation, Daejeon 34047, Korea
2
School of Architecture, University of Seoul, Seoul 02504, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Jian Kang
Received: 7 October 2016 / Revised: 13 November 2016 / Accepted: 15 November 2016 / Published: 22 November 2016
(This article belongs to the Special Issue Noise and Vibration Control in the Built Environment)
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Abstract

In Korea, water supply and drainage noises result in one of the main noise complaints because more than 50% of people reside in multi-residential buildings. In this study, a series of field measurements were therefore carried out to examine the current noise situation. The noise levels were measured in the bathrooms of the upper and lower floors, as well as in habitable rooms. The measurement results for the bathrooms of the lower floor (N = 113) are 47.8 dBA (water closet), 42.7 dBA (basin), and 33.9 dBA (bathtub) for water drainage, while values vary between 33.7 dBA and 37.0 dBA for the water supply. The results suggest that the water drainage noise needs to be controlled first. The system bathroom (42.8 dBA) produced lower noise levels than the wet construction method (48.2 dBA) for all of the sanitary wares. The highest noise levels in the living rooms (N = 11) and bedrooms (N = 8) of the lower floor are 34.3 dBA and 39.1 dBA, respectively. The average noise level in the rooms (N = 19) is 37.8 dBA. The overall result suggests that it is necessary to develop an acoustic guideline to satisfy the higher Class of the 2nd ISO/CD 19488, although the current noise level satisfies Class C (living room) and Class D (bedroom). View Full-Text
Keywords: water supply and drainage noise; bathroom; multi-residential building; field measurement water supply and drainage noise; bathroom; multi-residential building; field measurement
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, H.-S.; Cho, H.-M.; Kim, M.-J. Field Measurements of Water Supply and Drainage Noise in the Bathrooms of Korea’s Multi-Residential Buildings. Appl. Sci. 2016, 6, 372.

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