Humidity or wet walls have become a common problem in the last decades. Some common consequences of having humid walls are the growth of mold, which has a bad impact on the health and the comfort level of the internal environment. There is evidence that the effect of humidity on health is strong. Furthermore, the moisture content of the wall has a direct impact on its thermal resistance. This is due to the increase of thermal conductivity value of the wall. Briefly, the humid wall problem has a direct consequence on both energy consumption of the heating system and the health of the occupants. In our country and even east Africa countries the wall humidity of house is becoming a huge problem, where different research shows a rate of 81% of houses have wall humidity (moisture). The main cause of wall humidity is due to poor quality and dosage of materials of construction and capillary damp rising (remontee capillaires) from under the soil. Ubudasa has uniqueness in humidity treatment and prevention where we use our own bricks and products to fix and prevent this healthy problem forever