A Akrami - Architectural Department, Architecture and Art Faculty, Islamic Azad University, Tabriz Branch, Iran
S Choubsaz - Architectural Department, Human and Social Sciences Faculty, University of Tabriz, Tabriz, Iran

In this article impressibility of passive solar system on transparent roofs is offered. They can advanced from transmission of a large amount of sun's spectrum and work as a sun-control. To investigate this effect, the influences of the light have been analyzed with two standpoints: 1.Visual and conceptual , 2. Technology and materials. The transmission of solar energy from roofs depends on different variables subjects, such as technological facilities of the region, climate, economy and some other elements and it causes some limitations in designing methods and use of the solar energy. The results show that the energy transmittance of the transparent roofs with smart materials is more less than standard simple glass

Coated Glasses, Energy Saving, PassiveSolar System, Radiation Control, Solar Energy,Transparent Roofs