Building physics 

ABOUT THERMAL INSULATION AND MOISTURE TRANSPORT

Building physics: not only exciting, but also good to understand.

Building physics is one of the most exciting topics in house construction and renovation. All factors that influence the room climate can be viewed, analyzed and taken into account in terms of building physics, including thermal insulation, wall structure and moisture transport within the walls.
 
The moisture transport inherent in the wall takes place capillary or via diffusion. A moisture transport with the help of the air is called diffusion: moisture diffuses in a gaseous state through the masonry. Condensed water droplets are absorbed and passed on by the building material during capillary moisture transport. The fact that the wind dries away the moisture on the surface creates a capillary suction that constantly pulls new moisture outwards. In the case of steam pressure, it is again the case that the warm air located inside is pressed into the wall. The moisture penetrates the wall to the dew point. There the moisture condenses again, the capillary effect sets in and pulls the moisture out of the wall. In order to prevent a constant repetition of this process - and thus an accumulation of moisture in the wall- a wall structure that is increasingly permeable to the outside is necessary. This is the only way to effectively dehumidify the wall or keep it permanently dry. In the case of a wall with wall heating, the heat causes a vapor diffusion pressure to the outside. The moisture can dry off very reliably here.

To the light-clay