The knowledge of temperature distribution within a wall is important to determine where condensation may occur and what precautions to take. This study used the finite element method to simulate the temperature distributions in different types of walls (solid brick, Ytong, concrete wall) for poultry farms in cities in different climatic regions of Turkey (1st zone: Antalya, 2nd zone: Samsun, 3rd zone: Ankara and 4th zone: Erzurum) and identify on which surfaces condensation could occur. The study assumed an indoor temperature of 20 ºC, a relative humidity of 60%, and a dew point temperature of 12.04 ºC. According to the results, hidden condensation was more common in Ankara and Erzurum, where the outdoor temperatures (6.30 and -0.50 ºC, respectively) are colder than in the other two cities. Therefore, it would be appropriate to install vapor barrier materials on the warm side of the walls to prevent hidden condensation.