earby environment conditions, that is temperatures and humidity
at 5 cm and at 30 cm above the roof surface, as well as to know the
temperatures and moisture of the substrate layer, the roof was
completely monitored, and divided in three different plots, as
shown in Fig. 2. Two of them were placed on a vegetated area (Plot
1 and Plot 3), and the third one was placed on an area finished with
gravel, to be used as pedestrian area (Plot 2).
Plot 2 and 3 are located on the same side of the roof, therefore
both are exposed to the same solar radiation during the morning
and shaded by the roof railings in the afternoon. On the other hand,
Plot 1 is located in front of Plot 2 and 3 which are shaded by the roof
railing during the morning, and irradiated by the sun during the
afternoon.
Table 2 summarizes the parameters recorded and the used
instrumentation at each area.
Data were recorded every five minutes during the whole 2010
and 2012 years for each parameter and then the graphics are made
from this data. Thus, in the graphics the evolution of every
parameter throughout the year can be observed. For the analysis of
the experimental data representative days or weeks in 2012 and
2010 were selected.
During 2010 data collection period, indoor offices were not
operating, therefore temperature and humidity indoors values
reflect the free floating conditions without any conditioning
(heating or cooling). During 2012 data collection indoor offices
were operating, and the indoor values for temperature and humidity
reflect the environment in the air gap between the roof
structure and the false ceiling in the office room.