International Journal of

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Day lighting is one of the important qualitative factors in housing, which is also effective on health and well-being of occupants. Extensive glass surfaces and Transparency in building facades provides good daylight quantity for interior spaces. However, this lighting system is not appropriate for climates faced with higher sunlight radiation (Such as hot-humid areas), due to overheating and disturbing the thermal comfort. There are efficient day lighting strategies in the traditional Iranian architecture as one of the valuable remaining heritages of Human experiences, which are useful for contemporary architecture. This article intends to investigate daylight quality in the houses of Bushehr from Qajar period by modeling and simulating in daylight calculation software (Dialux) and identify day lighting strategies utilized in these houses. As Bushehr city is located in the hot-humid region of Iran, is faced with high sunlight radiation, making balance between receiving light and heat gain through windows needs careful attention. The houses of Qajar period in Bushehr are evolved samples of traditional architecture in the city and Rashidy house (built in 1893) is one of them which its form and details can reveal many lessons on coping with climate by merely using renewable energies.

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Change is an essential element to Humans and foundation of their lives. Each change though requires its unique
conditions. But Change may result in total destruction instead of exaltation if it takes place without considering conditions
regarding it’s time, place and also without scientific evaluations. There are many factors and reasons for change and
transformation and once it happens, consequences would follow. Due to social, managerial and historical events, Iran’s
society has undergone changes during its modern era. Consecutively, Iran’s architecture has too experienced a drastic
transformation during the past hundred years and especially in the past six decades which some call this an interruption.
Interruption means, the connection between past and present has been cut off. Today as result of this interruption, Iran’s
society is experiencing an increase in individualism and decrease in social relations. This would seriously question objectives
of a utopia.This study is looking to clarify the interruption process and events influencing it in Iran’s architecture and
urbanization base on three fundamental questions: 1. What are the causes of interruption in historical textures and which
factor plays the main role? 2. What is the orientation of master plans, the thinking of the inhabitants and the authorities of the
historical context regarding the issue of interruption and continuity? 3. What is the relationship between social relations
governing the formation of architecture in historical contexts and the issue of interruption and continuity?This study will be
using qualitative paradigm and historical research method to review the selected time intervals. As we progress through the
study, we will have a look at the consequences of the disconnection from past in Iran’s architecture and urbanization. There is
also a time graph which includes influential historical events projecting delicate turning and decision points. Moreover,
explaining the consequence of the interruption in Iran is the achievement of this study which would assist others with the same
interest with a clearer path throughout the time.

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In the architecture of the mosque, the light entering into the dome is a functional necessity and due to the structure, the weight of the dome and its one or more shells has caused limitations in any kind of skylights to be encumbered. The research main question is that due to the mechanism of the dome parts, how the creation and the entering of skylights to the dome were done. The research method is a combination of both quantitative and qualitative methods. Initially, based on library studies, researcher's opinions were investigated and by analyzing 14 types of mosques from the Seljuk to the Qajar era in Iran, analyzes on how to create skylights through the dome were accomplished. This research answer two essential questions which are what principles had been followed for locating skylight in the dome? Moreover, how did light enter through the dome, in one-shell and two-shell domes? The findings show that in the one-shell domes, the position of the skylight is variable. In detached two-shell domes, the skylights are placed merely in 45° areas and are not limited in terms of numbers. Conclusions state that one-shell domes had a restriction to the number of skylights, in comparison to the two-shell domes. In detached two-shell domes, lighting was possible until the 22.5° area and considering no limitations, there has been no skylight in the area between 67.5° to 90° apart from a few exceptions.