轻钢结构屋面热湿特性分析

Analysis of Heat and Moisture Characteristics on the Building Roof of Steel Structure

指出保温层内温度急剧衰减、钢板内侧温度接近室外温度、而各界面的水蒸气分压力与室内相差不大是导致结构内冷凝结露的直接原因;并提出了设计、施工和维护时应注意的问题,以供轻钢结构屋面的开发、研究与应用人员参考。

Systematically analyzes heat and moisture characteristics on the light steel structure roof, Points out the direct causes of dew-condensation that the temperature in insulation layer is rapid attenuation and the interface temperature between the steel plate and insulation layer is close to outdoor, at the same time water vapor pressure in the structure is almost equal to indoor water vapor pressure. The corresponding technical measure of anti-condensation is presented in design, construction and maintenance and it can provide reference for the development, research and application of light steel structure roof.