我将不得不讲一个很长的故事，我很抱歉，但事情并不是一个简单的解决方案。这所房子是一个20世纪40年代建造的3张床，带腔财产。楼下，最潮湿的地方潜伏在厨房橱柜(外墙)后面，黑霉、发霉、吹碎的木屑、蜘蛛，真恶心。外墙是2英尺高的彩绘砖，然后进行渲染，朝北，砖的灰泥看起来是咸的，就像蜘蛛在砖里栖息一样。这上升的水是潮湿的还是凝结的?我现在在厨房里有滚筒烘干机，并通过墙壁通风，所以假设这将有助于干燥内部，到目前为止闻起来像这样。大约10年前，客厅的烟囱地板(外墙)附近有黑色霉菌，但感觉很冷，有点潮湿。楼上的浴室(通常)有潮湿的地方，我同意凝结(窗户开着的地方)，最糟糕的是卧室里有一个令人困惑的sarga。十年前，就在烟囱烟囱旁边的那面墙，但在楼上，我拉了一个有臭味的衣柜，发现了大量的黑色霉菌，甚至还有一些绿色。外面正在下雨，墙上有涓涓细流。 There is an exteriour air brick behind. I striped the paper and painted with damp-stop and left it at that. I left whilst hubby got scrached by thistles on the other side of the garden fence. In the meantime the cavity got filled (no punns there). The room redecorated 2 years ago. 15 months ago the black mold first appered in the very top corner, single wardrobe about 3ft away in the same alcove (ventilated enough?). 12 months ago put two chests of drawers in this alcove the patch still grew and across the top of the chimney brest and started to go green behind the drawers. Had to move rooms again (7 people in our home) 6 months ago big wardrobe in alcove = huge smelly patch of mold. I've been told there is a big overhang to not cause problems, the guttering on the side of the house has forced a dip in the center and spilling over so not possible to be that. No mold on the out side. The render is massively failing but not in that corner. nothing obvious on the roof, joists and roof felt dry. the window in the winter is always wet. Is this just condensation? Why was the mold still growing without furiture in front? And why Green at the bottom of the alcove? If possibly realy bad condensation alone, which is best extraction fans, dehumidifiers or heat recovery (been recomended attic to hallway type) and do you get what you pay for. Can I get away with cheeper option if rendering needs doing aswell?