Abstract

The need of green in cities or the increase of its ratio is very requested in this time of global warming. Buildings in combination with traffic cause so called urban heat islands. The high surface temperature on the facade of buildings causes the increase of surrounding air temperature in the towns. This situation creates the discomfort for their citizens. Also we have to consider with higher operating costs for cooling systems in buildings. The solution how to help is the using of green architecture for each new building but also for reconstructed existing buildings. Green roofs and walls are not new and we have different construction solutions. But this article brings different view on the construction solution of green roofs. It should be the solution that can decrease the heat load of building. This proposed solution allows using the area of flat roof for installation of air handling units and their ducts. The design of space on the flat roof overarched by greens creates better conditions for the operations of air handling units during the hot summer days when the fresh air is sucked from the shaded space that is not overheated by solar radiation.

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