The presented study considers the numerical modelling of a thermal bridge distribution, based on conjugated heat transfer and Computational Fluid Dynamics (CFD) model of approximated external concrete wall. The thermal bridge distribution is cross-analyzed relative to the indoor and outdoor air parameters, under the corresponding structure’s thermal properties. The main analyzed parameters in the study are the surface temperature on the exterior wall, outdoor air temperature and wall thermal conductivity. The integrated modeling results show the complex environmental impact over the generic conditions for the thermal bridge existence. The further analyses will include the relative humidity and dew point temperature impact over the thermal bridge distribution. These additional parameters may be used for moisture accumulation indicator, in the developed numerical model.