The infrared thermography of buildings proceeding its surrounding and their thermal performance

In carrying out the thermographical research of buildings, including the conditions to conduct this thermal imagining of buildings, one must take into account a rather small rank of temperature differences between outer surfaces of buildings and their surroundings. This is particularly vital if one compares other types and methods for carrying our thermography survey. In this connection, for the thermographical researches of buildings and defining the conditions for such research, it appears that the key issue is the equilibrium of the heat radiation, at the surveyed surface. Quantitative building thermography is radiometric imaging method to determinate values like overall heat transfer coefficient of U and thermal building performance η efficiency, or the heat permeability θ  from the buildings. All above values were inter-connected by the coefficient heat transfer hO at a wall surface of the surveyed building envelope.