The impact of virtual reality (VR) technology on the results of green roof adoption in residential buildings; Case study: Qaemshahr

Today, the use of virtual reality in various fields is expanding rapidly. Although there is a lot of research on virtual reality technology in design and architecture education, the research on virtual reality (VR) technology in the architectural analysis as a tool in research methods is scarce. Due to the rapid growth of urbanization, cities around the world are becoming concrete jungles. Worldwide, the total urban population has surpassed the rural population. Rapid population growth and urbanization, coupled with limited biological resources, have been the cause of numerous environmental problems. Some solutions have been suggested to address urban environmental issues. The contribution of roof surfaces to environmental problems cannot be overlooked in this discussion because they cover many cities. Green roofs have been offered as an effective strategy for tackling these problems. Green roofs are very popular in many countries due to their sustainable benefits. Green roofs can help reduce the negative impacts of urbanization. This overview discusses green roofs and their effect on the energy consumption of buildings and living environments (aesthetic, ecological, and climate aspects), health, and quality of life — optimal parameters of green roofs.

In the present work, we pursued two aims. According to the literature review, the first aim of this research was to identify and describe the effective factors of adopting green roofs for residential buildings. The following factors were observed: economic, environmental, and social benefit, type of plant, type of irrigation, and extensive green roof type. The second aim was to study the impact of VR technology on green roof adoption. Virtual reality (VR) has become a valuable tool to study. We conducted a VR experiment with a total of 374 participants. The research findings based on SmartPLS support that selected factors positively influence the adoption of green roofs in residential buildings. In examining the impact of factors on the adoption of green roofs for residential buildings, the advantage of this methodology is that researchers can observe actual behavior.

Regardless of the type, green roofs have many advantages in urban environments, including aesthetic, ecological, climate-related, and health benefits, as well as improved quality of life. Furthermore, given that about 40% of global energy consumption is related to building construction and maintenance, green roofs can play a part in reducing the energy consumed for heating and cooling buildings. Moreover, while green roofs may use more energy for maintenance, there is evidence that their overall energy consumption is less than that of white roofs. Green roofs insulate buildings against the wind and sunlight, and the combination of the added insulation and evaporative cooling could decrease the cooling requirements inside the building. They also reduce the surface temperature of roofs, which can help ameliorate the UHI effect in cities. In addition, green roofs can help with stormwater management by reducing and slowing runoff and may help to reduce the pollutants that enter the surface water. Green roofs can also reduce lead concentrations in runoff and increase air quality, provide wildlife habitats for animal species, create beautiful city views, serve as cultivation spaces for food production, and reduce noise pollution from traffic. Urban green spaces can also have important benefits for social, mental, and physical health. People living in environments with more green spaces have better physical health and higher self-esteem and experience less stress, anxiety, and depression; as a result, they have better social and mental health than those with very few green spaces. Green spaces also provide opportunities to interact with nature and other people and can serve as recreational spaces. Finally, they can improve city residents’ well-being by reducing air pollution and facilitating physical exercise.

Finally, it was concluded that the mentioned factors played a significant role in adopting green roofs. Also, the results show that VR has many positive effects on the results of green roof adoption in residential buildings by creating a sense of presence in a virtual reality experience.