IJAERS: Thermal Performance of the Extensive Green Roofs in Hot Dry Climate

IJAERS: Thermal Performance of the Extensive Green Roofs in Hot Dry Climate



Ashraf Muharam, ElSayed Amer, Nasser Al-Hemiddi 

Green roofs have been used as an
environmentally friendly product to encourage sustainable construction.
Green roofs have a variety of advantages, such as reducing the energy
consumption for cooling systems. The performance of these systems
depends on the climates.
The energy consumption for heating and cooling inside the residential
and commercial buildings reach to 70% in hot dry climates such as Riyadh
city which the temperature reached 50°C. So, the study aim to examine
the efficiency of Extensive Green Roof system for reducing energy
consumption of cooling in buildings in hot dry regions by compared it is
performance with concrete roof system. The experimental validations
were applied on residential building in Riyadh city during the summer
season in 2014. The study used two rooms for testing thermal performance
- the first room with extensive green roof system and the second room
with concrete roof system. The results showed that using environmentally
friendly insulation (Extensive Green Roof System) could reduce 12% to
33% for energy consumption of air conditioning in hot dry climates. 



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