THE STRUCTURE OF THE BUILDING LIFE CYCLE ASSESSMENT (LCA) FOR SELECTING SUSTAINABLE MATERIALS IN RESIDENTIAL COMPLEXES IN TEHRAN

The world is now faced with an imbalance in the biological systems. The emergence of the phenomenon as climate change in the world can seriously take at risk the biological future of the world and causes the extinction of life and organisms on Earth. Given that the main reason for this phenomenon is the greenhouse gas emissions, buildings cause about half of these emissions, as a sustainable building design will cause to reduce negative effects caused by the improper use of materials and produce wastes. Therefore, sustainability approach based on the needs of today's generation using renewables resources and in opposition to non-renewable resources can be expressed. In fact, sustainable building materials should have the lowest risk to human health. So materials should be investigated from design to implementation and operation to understand the sustainability concepts of building. The present article will review the assessment of sustainable materials to use in residential buildings in the area of Tehran, and the vision of research is to provide solutions for assessing the sustainable architecture through understanding the new way of building life cycle analysis (LCA) of materials in building as a tool to measure. So the research questions are: How much selecting sustainable materials based on LCA in the design of residential complexes in Tehran is effective in reducing energy consumption of these buildings? And it investigates how quantitative and qualitative sustainable materials based on assessment system of environmental cycle in residential complex in Tehran.