贵州地扪侗寨传统民居围护结构改造对室内热湿环境影响

The impact of envelope materials on indoor thermal and moist environment in Dimen Dong Nationality in Guizhou

随着经济、资源的变化及火灾的危害,贵州地扪侗寨居民逐渐用砖结构改造原有的木结构建筑,以改善其气密性与保温性能,但砖结构同时带来了室内结露与夏季夜间过热的问题.本研究结合现场实测,分析改造前后围护结构热工性能的变化,阐述其对室内热湿环境的影响.结果显示,改造后的砖墙结构能更好地稳定室内温湿度,但其内表面在夜间和雨后更容易结露.本文分别讨论了结露和夜间过热现象的解决方案.

with the change of economy and resource and the damage of fire, the brick construction is mainly adopted when the residents rebuild their tranditional wooden house in Dimen Dong nationality village, by this way, the air tightness and the thermal insulation of the building have been obviously improved, but there will be moisture condensation inside the room and the summer night is excessively hot. This paper will analyze the difference between the thermal performance index of envelope before and after the transformation and will describe its influence on the indoor thermal and humidity environment. The result shows that the brick wall structure after transformation can better stabilize indoor temperature and humidity, however, the moisture condensation is easier to exist at the internal surface in the night and sunny day after shower. This paper discusses the solution including moisture condensation and overheating at night.