الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 84 |  |  |
| | | from | 84 | | |
Abstract
This paper undertakes an international comparison of global sustainability tools and examines their characteristics and differences.
Most importantly, it focuse.s on which tools from different countries can be directly compared with each other. The results are designed to provide some clarification of the assessment tools for sustainable buildings, which in turn will assist investors, developers, tenants, and government bodies in making informed decisions about green buildings. In addition, it is envisaged that removing some of the uncertainty associated with sustainable buildings will increase transparency for stakeholders and facilitate their acceptance. There is little dispute now that buildings are substantial C02 emitters and contribute substantially to climate change. This argument is based on the large environmental footprint of buildings, especially when considering the high reliance on resources due to an increased reliance on air conditioning and heating. At the same time it has been demonstrated that the value of a building can be linked to the building’s perceived level of sustainability, where the stakeholders include building owners, tenants, and property appraisers or valuers.
The problem therefore lies with how to distinguish the level of sustainability in a building, which will facilitate a direct comparison between each building. This is where sustainability rating tools can potentially play a major role. Many countries have introduced new rating tools over the past few years in order to improve the knowledge about the level of sustainability in each country’s building stock. On one hand, it can be argued that the individualcharacteristics of each country, such as the climate and type of building stock, necessitate an individual sustainability rating tool for that country. The downside is that to varying degrees the rating tools for different countries are constructed on different parameters. This in turn has created complications for stakeholders, including property investors, who purchase buildings in different countries; an understanding of the many differences between each market has been increasingly harder to understand.
Egypt is considered to be one of the country’s most at risk from the impacts of global climate change. It is therefore of critical importance that the Nation follows the lead of others in rationalizing energy use, managing the use of water and other natural resources, and reduction of waste.
This ’pape’r investigates the evolution of global building rating tools and discusses their attributes, util)zation on a global basis and benefits to facility management. And make a comparison study between the global rating systems and the Egyptian rating system ”green pyramid” and found its defects to solve it. Furthermore, it examines how rating tools have evolved over time and which countries and their respective rating tools have contributed to their global uptake.
This paper analyses the development of rating tools over time and seeks to provide insight into their positive and negative attributes.