الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 213 |  |  |
| | | from | 213 | | |
Abstract
The growing interest in cool roofs has led to renewed interest in green roofs. Green roofs go beyond the meaning of contemporary architecture and give a new value to the role of buildings within urban planning. They are designed not only to bring back the natural element in the urban environment but also to provide solutions for important issues such as urban heat island effect, storm water management, pollution, food security and energy management. This research proposes green roof and rooftop greenhouses as a way to reduce the effect of urban heat islands and thermal energy loads in the urban area. The experimental research was conducted on the hyper arid conditions of a Fayoum residential building with green roof with shading and shaded green house in summer and greenhouse in winter. Summer results indicated that the best scenario was the shaded green roof as it reduced the room temperature 5.1 oC, the energy consumption by 30.6% and the CO2 by emission by .88 Kg/year.in winter, results presented that the green house was more effective than the green roof as it raise the tested room temperature by 3.6 oC, reduced the energy consumption needed for heating by 22% and the co2 emission by .432 kg/year. Based on these result, applying shaded green roofs on traditional roofs in summer and replace shading material with plastic in winter, can be a successful roof treatment to achieve thermal comfort during summer and winter.