近日有朋友乔迁新居,参观时了解到该建筑为多层砖混结构,地处高台,坐北朝南,日照充足,视野开阔,装饰一新,墙壁雪白、地板洁净。美中不足的是发现北向房间墙根角落有潮湿印渍(尤其山墙处更甚),饰面材料起皮掉粉,询问主人不是外墙渗漏,且未做保温,究其原因是热桥引起的结露(图1)。 Recently, a friend moved to his new home. During his visit, he learned that the building is a multi-storey brick-concrete structure. He is located on a high platform and faces south. The sun is plentiful, his vision is wide, the decoration is fresh, the walls are white and the floor is clean. The fly in the ointment is found in the north corner of the wall to the root of the room wet damp stains (especially at the gables even more), finishing materials from the skin powder, ask the owner is not the outer wall leakage, and not insulation, the reason is due to heat bridge junction Lu (Figure 1).