宜蘭地區自然通風建築木質材料霉菌生長之初步評估

Preliminary Evaluation of Mold Growth for Wooden Material of Natural Ventilated Buildings in Ilan

喻新(Hsin Yu) ； 歐陽慧濤(Huei-Tau Ouyang) ； 盧志晃(Chin-Huang Lu)

《農業工程學報》 51卷3期 (2005/09) Pp. 11-20

https://doi.org/10.29974/JTAE.200509.0002

摘要

全世界的建築物均有潮濕損害的問題，也容易形成霉菌污染影響人休健康，宜蘭地區的全年相對濕度是全省最高的區域，若分析2004年每小時之氣象資料顯示除夏季高溫期相對濕度較低外，其餘時間相對濕度多超過80%，且以1月底2月初最潮濕。本研究依據前人在實驗室對木材所作霉菌生長之實驗結果及數值模式、評估指標等方法，對宜蘭地區自然通風建築木質材料的霉菌生長情形進行評估，結果得到霉菌生長臨界相對濕度、適合霉菌生長時期比例、及最大可能霉菌生長指標的一年期間變化情形均受大氣環境之影響，即夏季7月至9月不適合霉菌生長，而在1月底2月初最適合霉菌生長。宜蘭地區一年間的霉菌生長情形依起始條件不同而有類似的變化情形，若能在一年中清理材料表面，則可明顯降低霉菌生長指標。依長期氣象資料所得到月份別之霉菌生長情形亦與一年期間的分析結果類似。未來將以本土建築材料及型式進行霉菌生長評估之研究，以建立本土化霉菌生長評估模式。

關鍵字

自然通風 ； 木質材料 ； 霉菌生長

並列摘要

All buildings of the world have problems of water damage that causes mold pollution and health risk In Indoor environment. The annual relative humidity of Ilan area is the highest In Taiwan. Except the relative humidity of summer is in lower grade relative humidity of the rest of the year is high and the highest value is at mid-winter according to the hourly meteorological data of 2004. We evaluated the mold growth of wooden material in natural ventilated buildings by the experimental results of mold growth in wooden materials with mathematical models from previous researches. The annual variation of the critical relative humidity of mold growth, the time proportion of favorable condition for mold growth, the largest possible mold growth are affected by the atmospheric environment. It is showed that the period of unfavorable condition for mold growth is July to September at summer, whereas the most favorable condition happened at mid-winter within a year. The annual variation of mold growth results in a similar tendency although based on different initial conditions of mold growth. The annual mold growth is reduced if the surface of wooden materials is cleaned during the period of mold growth. The variation of mold growth from the monthly data of meteorology is similar as the variation of annual mold growth based on the hourly meteorological data. Future research will focus on the native building materials and construction types to derive the evaluation method of mold growth in local area.

並列關鍵字

Natural ventilated buildings ； Wooden materials ； Mold growth