根据霉菌生长的临界条件,在对墙体进行详细热湿性能分析的基础上,建立了木结构中最大可能霉菌生长指数模型。提出了基于预防霉菌生长的墙体最小热阻的确定方法。以长沙地区为例,分析了我国南方地区一种新型木结构墙体中胶木层的霉菌生长情况。结果表明,在靠近室内侧的表面,由于湿度过高引起霉菌大量生长。该墙体要在热湿气候地区推广应用需合理的设计室内产湿率和除湿率之间的平衡关系。 According to the critical condition of mold growth, based on the detailed analysis of heat and moisture of the wall, the model of maximum mold growth index in wood structure was established. A method to determine the minimum thermal resistance of the wall based on mold growth is proposed. Taking Changsha as an example, the mold growth of bakelite layer in a new type of wood-structured wall in southern China was analyzed. The results show that near the indoor side of the surface, due to excessive humidity caused mold growth. The wall to promote the application in the hot and humid climate areas should be reasonable design indoor moisture rate and the balance between the rate of dehumidification.