The bricks that are used for this particular construction are very good in Sri Lanka where the climate is very humid and hot all days of the year; in fact the thermal inertia of the bricks is high and in this way they are able to absorb excess heat during daytime and release it during night. An other particular benefit of the clay-sand bricks is the igrothermal regulation so the regulation of relative humidity inside the construction in order to mantain the relative humidity inside confort boundaries. For thermal comfort, the building must act as a barrier, transforming the outdoor climate into conditions suitable for indoor activities.