Authors: Ar. Suman Sharma, Muskan Gour
Abstract: Vastu Shastra is an ancient Indian architectural science that establishes harmony between buildings, nature, and human activities through orientation and spatial planning. Traditional Indian architecture evolved according to climatic conditions, environmental understanding, and sustainable planning principles. The orientation principles of Vastu are closely related to thermal comfort, daylight performance, natural ventilation, and passive cooling strategies. This research paper studies the climatic relevance of Vastu orientation and analyses how traditional Indian architecture responded effectively to environmental conditions using climate responsive architectural techniques. The study follows a qualitative and analytical research methodology based on literature review, comparative analysis, and case studies of traditional Indian houses. The paper examines the relationship between orientation, sunlight, wind movement, thermal comfort, and passive environmental control. Traditional architectural elements such as courtyards, verandahs, jaalis, shaded openings, and thick walls are analysed in relation to Vastu principles. The study also compares these traditional concepts with modern sustainable architectural practices. The findings indicate that many Vastu principles are scientifically relevant and environmentally responsive. Proper orientation improves daylight quality and ventilation while reducing heat gain and energy consumption. East-facing openings provide healthy morning sunlight, while reduced western exposure minimizes thermal discomfort. Courtyard planning enhances air circulation and creates thermal balance within buildings. The research concludes that Vastu orientation is not merely a cultural or spiritual concept but also a climate responsive architectural strategy based on environmental understanding and passive design principles. Many concepts of Vastu remain relevant in contemporary sustainable architecture and energy-efficient building design.
