Numerical modelling of coupled heat and mass transfer within a CEBs wall is presented. Based on Luikov's work, a mathematical modelling of the transfers mechanisms has been established. Temperature and moisture content were chosen as the main way of transfer. A numerical approach was applied (finite element method). The implementation of the mathematical model in COMSOL allowed us to obtain the results. These results allowed us to represent the spatiotemporal distribution of the temperature fields and the moisture content within the studied wall. The thermal inertia character of CEBs has been illustrated. The effect of temperature gradient on mass transfer has also been highlighted.

mass transfer CEBs coupled main way of transfer spatiotemporal