ZEMCH 2015 - International Conference Proceedings | Page 734

Figure 16: 3D Section- Cross ventilation direction passing through openings
In the efficient case of the building, the amount of glazing was decreased in the south part, for
the north it was determined to achieve the maximum day light that meets the visual comfort.
The concentration also was to benefit from the wind pressure coming towards the site, and assist
it to have a well-defined flow path. As the Royal Institute of British Architects (RIBA) mentioned,
the purposes for ventilating the building, we recognize that it removes the heat in the space (215 ac/h), and maintain the air-quality of the room with a minimum of 1-2 ac/h, and it will seek to
provide air-movement to improve thermal comfort status from 0.5-2 m/s.
Materials and Insulation:
The base case has followed the regulations and codes of Dubai municipality. And for the efficient
case, materials selected were chosen according to their insulation properties, U-values and thermal mass; to have a proper combination that work simultaneously to reach to the least thermal
heat gain or any heat loss. Building materials were chosen for the walls, floors and roofs as shown
below:

Figure 17: Wall sections- building codes- floor, wall and roof (Dubai Municipality circular 179)

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ZEMCH 2015 | International Conference | Bari - Lecce, Italy