In the present research work, a sampling process with frequencies of 10–20 min was carried out during the working hours from 08:00 to 17:00, and during the unoccupied period from 17:30 to 22:00. The probes were positioned at 1.1 m height from the ground level, in strict accordance with the prescriptions ASHRAE Standard 55 [17] and ISO 7730 [18]. The devices were installed from 7:00 am, and the data collection started at 8:00 am, so as to enable each probe to adapt to the environment. In most cases, thermal uniformity was difficult to achieve in buildings. Hence, in this study, the measurement of the environmental parameters was conducted at various points occupied by the occupants. In each season in 2012. All new and old buildings studied, were naturally ventilate