There is a temperature at which water vapour in the air turns into water as a result of temperature drop. This value called condensation temperature varies according to each temperature and relative humidity percentage. If the relative humidity increases, the difference between the ambient temperature and the condensing temperature decreases. As the difference decreases, the insulation thickness increases. In order to prevent condensation on the inner surface of the outer walls, the surface temperature must be above the condensation point. For this, it is necessary either to heat the interior space much more than necessary, or to increase the internal surface temperature by making thermal insulation on the wall.
