Sustainable Construction A Life Cycle Approach in Engineering

placed over the sun-path-diagram with the orientation of the building (0º at the lower part of the
mask should show the orientation of the building). For example, if the orientation is 0, this
means that the facade faces south. The observer stands at the center. In the upper half of the
mask, the altitude angles of the sun are shown with 10º increments. The lower half of the mask
is divided into pieces with arcs having 10º increments again, but these represent the shading
projection of the sun-controllers on the facade over the window. The mask is used according to
which value is searched. For example 80º curve in the lower part shows the shading projection
of the shadowing device which has a profile angle normal to the facade of 80º (this means that
the angle with the facade is 10°).
Figure 1. The bioclimatic graphic (Olgyay&Olgyay, 1973, p.22)
Figure 2. Sun-path-diagram for Izmir with the
overheated and underheated periods (Altin, 2005) Figure 3. The Mask (Altin, 2005)
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