Sustainable systems in Iranian traditional architecture

Today, sustainable architecture, the way of architectural design which is based on environmental aspects, is a specific style of design which architects and designers try to pay more attention to it and architects in Iran, as a vast country with different climatic zones and regions, had to use this way of design in Iranian traditional architecture from a long time ago to conquest environmental problems in architecture and have a specific system for each region. This paper concentrates on sustainable systems used in Iranian traditional architecture which traditional architects designed and presented to have the solutions of human comfort and save natural energies.