Journal of Design and Built Environment
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A lower external temperature increases comfort and reduces the chance of heat stress; it can be impacted by the density of the urban area, and this is an important issue for the residents in housing estate developments. Therefore, to sustainably reduce this issue, the external temperature is important to manage for urban public spaces’ development. This article reports the results of studies on increasing thermal comfort in public areas by adding different types of shading into computer programs, Rhinoceros and Grasshopper, to calculate the Universal Thermal Comfort Index (UTCI). Increasing the outdoor comfort can be done by adding shaded areas via large trees that can result in thermal reduction and humidity increase, but they do not obstruct air circulation. The result can be used as a guideline for the design of public spaces in housing estates to meet the outdoor comfort efficiently and support the users’ expectations.

The widespread tendency to combine vernacular with modern architecture has led to the need for an in-depth understanding of the concepts that underlie the form of vernacular architecture. Unfortunately, there has been no systematic and rigorous research method aimed explicitly at reading the architecture of vernacular settlements that do not have written data on local traditions and culture. This study puts forward the theoretical-methodological steps to read the meaning of architectural patterns in the context of vernacular settlements by elaborating Levi-Strauss' structural analysis of myths with Salura and Alexander architectural theory. This study resulted in structuralist-inductivist steps to describe, analyse, and interpret vernacular architecture. The methodological framework consists as three significant parts: Firstly, to describe the activity and form of vernacular architecture in-depth based on the anatomical scope and architectural composition-properties. Secondly, to explore the surface structure of local myths, activities, and architectural form. Thirdly, to disclose the deep structure that underlies the relationship between local myths - activities - architectural form. These steps can be applied to read the meaning of vernacular settlements with no written sources on cultural traditions. Thus, this research contributes to the development of the theory and methodology of architectural scholarship. This research also acts as a source of knowledge for architectural practitioners and a significant input for the survival strategies of vernacular architecture.

The use of air-conditioning (AC) in conjunction with high-volume, low-speed (HVLS) fan has become a trend in retrofitted mosque buildings in Malaysia to improve thermal comfort conditions. However, the energy impact of operating AC and HVLS fan simultaneously is unknown. This study compares the annual energy consumptions between mosques with and without HVLS fan installed and investigates the optimum temperature setpoints and operational profile to improve the mosques' energy efficiency. The comparison using the Building Energy Index (BEI) did not clearly show the superiority between the two groups in terms of energy performance. The study found that both studied mosques could produce around 1-4.9% energy reduction when the AC temperature setpoint was increased by 1˚C and could result in the highest cost-saving of about 4.9% when the temperature was set at 27˚C. A 30-minute AC operation during each daily prayer, except Subuh, could save between 14.8-16.7% annual energy consumption and about 15.15-16.6% annual energy cost. The paper concludes that the selection of 24-27˚C temperature setpoints with a 30-minute AC operational profile during prayers time with consideration Friday prayers and Ramadhan activities produced 18.4-20.6% savings in energy cost. This study calls for reevaluations of AC temperature setpoints configuration standards and operational characteristics in mosque buildings to reduce the buildings' energy consumption. This paper contributes to the development of future energy standards for mosque designs and operations in Malaysia.

The UNEP Emissions Gap Report 2020 highlighted buildings and cities as one among six sector solutions for climate change through enhanced energy efficiency and carbon reduction. A good performing green building is seen as a solution for energy efficiency and environmental protection, but performance of green building is largely affected by maintenance management. Green maintenance has been introduced to allow goal of maintenance to be realised using advanced technology and equipment at the lowest cost of resources and energy use, waste and minimise environmental effect. There have been findings that green buildings might not be performing as how it is intended. However, green maintenance performance indicators are rarely studied. Even though there is an issue in this area, it was found that there was still scarcity of studies that review the existing literature on green maintenance, maintenance performance, and maintenance management of green building. Hence, a systematic literature review was conducted on the integration of green maintenance principles into maintenance performance indicators for green buildings. This review was based on the publication standard, namely RepOrting Standards for Systematic Evidence Syntheses (ROSES) and integrated multiple research designs. Two leading databases (Web of Science and Scopus) was selected for the searching of existing literature. Based on the data, for green maintenance principles and performance indicators, 4 main aspects have been established, namely Environment, Economy, Technical and Social. 5 green maintenance principles that have also been identified. Moreover, 11 green maintenance indicators and 25 sub-indicators were identified. This study has offered significant contribution to the body of knowledge in this topic. The findings explained the importance of integrating green maintenance principles into maintenance performance for green building to ensure desired maintenance performance, as follows: 1) to encourage green building managers to realise their role in maintenance performance; 2) to plan integration strategies according to the desired maintenance performance; and 3) to inform on the knowledge gap existence on specific areas and future studies suggestions.

Over the last few decades, the concept of resilience has received a great deal of attention in urban contexts. Universities are a hub of learning in the urban system, with diverse stakeholders facing various risks. As a result, to mitigate the adverse effects of any calamity, it is in the university's best interest to embed resilience components. There are still few studies on campus that address the concept of resilience. As a result, the purpose of this descriptive-analytical study is to create a practical framework for examining factors that specifically impact the physical characteristics of campus resilience, with the University of Malaya as a case study. The physical dimension measurement tools are developed through a systematic review of the literature and validated through expert interviews. The AHP method is used to weight 12 indicators to assess U.M. resiliency through four different buildings. According to the findings, each building has a different level of resilience index ranging from 0.30 to 0.80, and building characteristics play a critical role in U.M. resiliency. As a result, the final index reveals that U.M. has a moderate level of resilience.

This research aims to find out that education significantly influences the way people live in the world; with today’s education, humans and robots have become blurred. Therefore, it is necessary to change the curriculum and education, architecture which are the main problems Heidegger’s views used as a reference in this study. The solution offered to apply the future curriculum, namely STEAM, to the education system and its architectural forms by creating creative spaces and creating architecture that exudes human existence in them with metaphorical architecture. In this study, the current incidence of COVID-19 is taken as the context of the times in which humans are in, so it is necessary to make a school design is responsive to Covid-19. The method applied: 1) Applying the concept of ‘being’ in Heidegger’s philosophy; 2) creating a creative space; 3) creating a strategy when the Covid-19 incident in Heidegger’s philosophy of ‘time’. Architects need to think about the people who feel the existence of buildings in terms of form and function. The findings; how to create creative spaces to help the learning process in schools so that children can be motivated by their creativity by referring to Heidegger’s views on ‘being and time’.

This paper presents the result of research section for solar chimney (SC) model innovation as a passive cooling strategy. The research is motivated by sustainability issues, especially on the issue of environmental degradation due to uncontrolled use of air conditioning in urban environments. The vertical SC (VSC) model has been tested by the author et al., 2018. Although in general the presence of VSC has a significant effect on room temperature but it turns out that the VSC column height, that is assumed as the main determinant of performance, does not significantly influence [1]. The character of sun altitude in Indonesia is believed to cause the vertical chimney to be ineffective. For this reason, this study tested the Sloped Solar Chimney (SSC) model. The purpose of this study is to test whether: (1) SSC is better than VSC; (2) the sloping chimney thickness and internal chimney height give a difference in SC performance. The SSC model consists of three components: (1) internal vertical chimney inlet; (2) External 30â° slope and (3) external outlets. The test model is made from galvalum. Overall, the research method was carried out in two stages, namely: (1) testing the simulative models by using a software based on empirical data on the context of the urban housing environment being sampled; (2) testing the models in the field. However, only the result of the first stage is presented in this paper. The location of the urban environment of dense housing used as a case study was Jogoyudan, Yogyakarta. The empirical data input consists of 3 groups of houses: on the banks of the river, in the middle of a dense housing and on the edge of a neighborhood road. The modeling software used is CFD analysis. The analysis uses a comparative test statistic with a confidence level of 5%. From the results of the study it is found that SSC caused different thermal qualities in the test model room. The thickness of the sloping chimney also gives a difference in the thermal quality of space. However, this phase of the research has not been able to show significant effects due to the differences in height of the internal chimney.

Energy-efficient building design models are one of the factors that need to be considered in building planning. In the morning to evening, sunlight as a source of natural light can be used as a source of lighting in buildings. By utilizing natural light, it will reduce energy consumption in buildings. Air conditioning and lighting are important factors in designing energy efficient buildings. In this study, analyzing natural and artificial lighting at Graha Pena Makassar Building. The research method is quantitative by measuring and analyzing several workspaces that are directly and indirectly related to openings in the building envelope. statistical descriptive analysis, namely entering data into tables and graphs, then analyzing the level of illumination in the analyzed workspace. The research objective was to determine the level of illuminance in several workspaces with different orientations. How is the effect of natural light distribution on building orientation and how is the artificial lighting system at workspace in the Graha Pena Makassar. The results showed that the orientation of the building had an effect on the distribution of natural light into the space. The spatial orientation facing East has a higher distribution of natural light than that of the south. Workspaces that are not directly related to window openings in the building envelope are using artificial lighting systems in the form of lights. The workspace has uneven illumination levels in its work area, because the layout and placement of lighting points have not been well planned. The contribution of this research is a reference in designing a building facade design with an attractive appearance, and can maximize the use of solar energy as a source of natural lighting, while still paying attention to the visual comfort of space users.

This study aims to provide an understanding of the locality-based privacy of traditional Indonesian houses, which is in line with Islamic architecture values. This study reviews scientific papers about traditional Indonesian houses and summarizes the privacy establishment of each house. The result of the summary found that privacy in traditional Indonesian houses consists of physical and non-physical. Physical privacy comprises separator or divider; height adjustment for building elements; build layers of rooms as transitional space; clear division of zoning; selected wall material; and distinction entrance. In comparison, non-physical privacy involves spatial agreement and gender spatial that requires agreement space between men and women. This study is expectedly fruitful for the development of Islamic-based concept residence in the Indonesian real estate realm.

Due to the essential nature and increased appreciation to the issue of sustainability in recent decades, the evaluation and assessment of environmental impacts of concrete structures have been considered extensively by the scientific and construction fraternity. To enhance the resilience in the design of concrete structures in the tropics, it is essential to understand and acknowledge the impact of the geographical context, taking into account the widespread socio-economic circumstances in the tropics. Moreover, since all environmental impacts of a concrete structures through its life-cycle use are predictable through its Life-Cycle Sustainability Assessment (LCSA), it is therefore necessary to investigate this framework comprehensively. This research was undertaken to study and assess the existing methods in LCSA, as well as to assess the steps and materials that can significantly affect the environment during the whole life-span of concrete structures, and also to qualitatively understand the interaction among the geographic sense and sustainability in the tropics, considering the case of Malaysia. This study proposes a more comprehensive framework for LCSA in the design of concrete structures. The findings suggest that according to LCSA analysis, the environmental effects of concrete structures with almost the same functional quality can be different from each other.