建築分間牆隔音性能與法規應用之研究

Sound Insulation Performance and Its Application to Building Regulation Requirements for Internal Wall in Taiwan

台灣2007 年噪音陳情案已達4 萬2 千餘件，顯示民眾對於居家安寧之迫切需求。現行建築技術規則分間及分界牆之防音規定，係以材料厚度為準，其能達到之隔音效果尚無性能規定。因此，本研究之目的係為探討現行建築分間牆防音規定之隔音性能，並比較分析我國與美日歐等國建築隔音規定之性能差異。研究方法以ISO140-3 建築構件隔音量之實驗室方法進行實驗量測，測試件包括2 組規劃實驗（1 組傳統1/2B 紅磚牆及1 組矽酸鈣板輕隔間牆）及3 組隔間牆檢測數據。實驗結果發現：依我國現行防音規定施作之不同構造牆體之隔音量由44dB 至52dB，相差約達5dB，且其隔音性能大部份無法達到美國、澳洲等國之住宅隔音法令標準，也有部分牆體無法達到日本低頻或中頻之最低要求。因此，建議未來我國建築技術規則防音規定之增修訂，宜採用隔音性能標準，必要時要求配合實驗檢證，以提升居住之音環境品質需求。

In 2007, the noise appeal cases reached more than 42,000 in Taiwan. The phenomenon indicated that a quiet living environment is the imperious demand for people. The current regulation of sound insulation for internal wall in Taiwan’s Building Code is based on the thickness, instead of its actual performance. The purpose of the paper aimed to investigate the performance of sound insulation of internal wall and to analyze the reasonable revision of building code for sound transmission control in Taiwan. The sound transmission loss for different types of building elements was measured and tested, including traditional 1/2B red brick, calcium silicate board, gypsum board, fiber concrete board, and reinforced frame wall. The experiment results showed that the difference of the airborne sound transmission of these wall specimens exceeded 5dB, from 44 dB to 52 dB. Most of the sound insulation performances cannot meet the basic requirements of major housing sound insulation regulations in the world. The outcome can be one of the suggestions for improving the current Taiwan Building Code for sound insulation of internal walls, in order to enhance the sound environment quality.