臺灣是高溫高濕的島嶼國家，加上地狹人稠，居住環境常因溫濕度的變化而令人感到不適。木材具有吸脫濕、比熱大及熱傳導率較小之特性，作為裝修材料有助於營造溫濕度變動幅度較小的微環境。因此森林環境中之休閒原木屋，除了木材給人的溫暖感受外，居住時亦較為舒適的認知，成為國人休閒渡假時喜愛的選擇之一。
　　　而討論居住環境的舒適性時，溫濕度變化一直是相當重要的研究領域，本研究為了實際瞭解森林環境中休閒原木屋之舒適程度，以臺大實驗林溪頭營林區一棟位於林間之渡假原木屋為監測對象，採用攜帶型自記式溫濕度記錄器，紀錄該原木屋溫濕度逐時變化情形，並分析其不舒服指數。所得結果亦可提供休閒渡假遊客選擇居住環境時之參考。
　　　結果顯示原木屋室內外日均溫具高度正相關，溫度變動比（TVR值）範圍為0.15~2.01，大部份小於1，室內溫差幅度比室外小。相對濕度以室外最高，但室內外日均濕度僅低度相關。濕度變動比（HVR值） 範圍為0.03~4.85，大部分室內相對濕度變動幅度較小。此外原木屋內所有房間大致符合生物氣候圖中臺灣地區舒適溫濕度範圍。而原木屋室外之不舒服指數反而最低，但經過綜合評估，仍以居住於林間休閒原木屋有較佳的舒適程度。

　　Taiwan is a crowded island country with high temperature and humidity. People often feel discomfort due to the change of temperature and humidity among their living environment. The wood properties such as moisture absorption/desorption, smaller specific heat and thermal conductivity could serve as decorating materials that is helpful to create a micro-environment with smaller variation of temperature and humidity. Additionally, the leisure log houses in the forest gives people the warm and comfortable feelings that become the favorite choice when people go on vacation.
　　The variation of temperature and humidity is an important issue in studying the comfort of our living environment. This study was to investigate the interior living comfortness of a leisure log house at Experimental Forest of National Taiwan University, Xitou. Stand-along data loggers were used to measure indoors and outdoors variation of temperature and RH in order to plot Temperaturehumidity index and bioclimatic chart.
　　Results show that there was significant linear relationship between indoor temperature and outdoor temperature. The temperature variation ratio (TVR) ranges from 0.15 to 2.01 and was less than 1 most of time. Additionally, Indoor TVR was lower than outdoor TVR in the leisure log house. Although the outdoor RH value was higher than indoor RH value, there was a lower correlation between indoor RH and outdoor RH. The humidity variation ratio (HVR) ranges from 0.03 to 4.85 and had a low variation. Considering the measurements of log houses in studied locations were coincident with the comfort zone of Taiwan area in Bioclimatic chart. The outdoor around the leisure log house had lowest uncomfortable index, therefore, it shows good living comfortness in leisure log house.