Analysis of Traditional Iranian Vernacular Architecture in Response to Sunlight: An Approach to Sustainable Development

The geographical uniqueness and extreme climatic conditions of Iran predispose the country to great potential for energy conservation through the exploitation of solar energy. This free, available, and renewable resource important for environmental preservation has found its utilisation from the past in traditional Iranian architecture to optimise energy use and provide thermal comfort. Important architectural elements, including central courtyards, proper building orientation relative to the sun, and window dimensions, among others, have been all taken into account for designing around the different climatic conditions of different regions. For instance, this research compared traditional buildings’ solar strategies in two selected cities with two climatically different climates: hot-dry (Yazd) and cold-dry (Tabriz). It is shown how these strategies can effectively reduce energy consumption and improve residents’ quality of life. The research is based on qualitative and analytic approaches to the examination of solar architectural strategies in traditional Iranian buildings. Data were collected from library sources using comparative methods. This involved the selection of samples of hot-dry and cold-dry climate traditional architecture, which were analysed for elements and techniques. The results indicate that coupling architectural design with the climatic parameters of any region would indeed save a significant amount of energy while providing a desirable level of living comfort for the residents. In the case of a hot-dry climate like Yazd's, thermal comfort has been ensured through wind catchers, materials with high thermal capacity, and compact buildings. In contrast, the compactness of design, use of high thermal mass materials, and capturing solar radiation in Tabriz’s cold-dry climate during winter months are beneficial. Results from the current study emphasise the application of climate-responsive design in realising sustainable living environments. Modern architects and designers, by adapting some principles from traditional Iranian architecture, are able to create modern buildings that are energy-efficient and environmentally friendly. This traditional knowledge, when integrated with modern design practices, can lead to the creation of buildings that are not just sustainable but also resilient in confronting the challenges posed by climate change.