An Application of Water Harvesting Façade Technology for Commercial Buildings/ The Case of Amman

Jordan is considered one of the countries with the scarcest of water resources as the third most water scarce country in the world. Placed at only 20% of the water poverty level the research investigates the application of rain water harvesting technology on commercial buildings in Amman/Jordan and achieving a balance between what buildings consume and what they produce. Emphasizing procedural mechanism of implementation, and verification of the economic feasibility of system through studying the effectiveness in terms of cost, quantity of building consumption and harvested water. This research seeks to implement a system which utilizes façade cladding and roof collection by using curtain wall transoms to direct rainwater into vertical mullions. Then commercial buildings in the case of Amman can significantly benefit from rainwater harvesting technique. Research addresses the quantity of water consumed through calculations from water authority and comparing it with other similar building, then calculate harvested water through annual rainwater captured potential’s formula. It concludes to understand the importance of system’s implementation as new approach to be used in Amman with a good aesthetic appeal of greenery, and the efficiency of using it through feasibility study