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Journal of Chinese
            Architecture and Urbanism                                                Sustainability of courtyard building



            2. Literature review                               since been paid off. Studies on materials, light, and thermal
                                                               comfort in historical buildings have demonstrated that
            Historical buildings can serve as a valuable reference   applying traditional techniques, such as thermal mass and
            for contemporary building design and renovation. In   natural ventilation, to modern buildings can considerably
            developing countries, drawing on the merits of historical   impact energy consumption and thermal comfort. For
            architecture may be a viable way to promote sustainable   example, these techniques can reduce summer indoor
            development  and  energy  conservation.  To  substantiate   temperatures by up to 5°C. In addition, natural ventilation
            these hypotheses, a review of relevant literature is essential
            to highlight the possible merits of historical architecture.  has been associated with improved indoor thermal comfort
                                                               (Alwetaishi, 2020).
              The literature summarized in  Table  1 shows that the
            advantages of historical buildings have been studied   2.1. Chinese courtyard buildings
            and recognized worldwide. This widespread recognition   Chinese courtyard buildings hold potential research
            indicates that certain strengths of historical buildings can   value for contemporary construction. The perceptions of
            guide modern architecture toward greater sustainability.   many generations regarding technology, nature, and the
            These  strengths do  not require advanced technology   relationship between humans and nature are embedded
            and share similarities with modern passive building   in the architecture of that era. In ancient China, there was
            design. These  findings  support the  previous  hypothesis,   a scientific study of the relationship between architecture,
            emphasizing research perspectives that include materials,   humans, and nature called feng shui (风水). Its main goal
            life cycles, and special structures, thus providing a   was to find a way for humans to live in harmony with
            perspective for subsequent research described in this   the environment, with the belief that survival depended
            article.                                           on considering nature and people as an entirety, with
              Further literature review reveals that the insulation   humans as part of nature (Xu, 1998). The development of
            performance of historical building materials is often   traditional houses in China was based on limited abilities to
            underestimated. Standard U-value calculations, widely   transform nature and the limited resources available. These
            used in the building industry, underestimate the thermal   limitations led traditional builders to accumulate extensive
            properties of traditional wall materials such as stone. For   ecological “low technology” experience (Ji  et al., 2020).
            instance, 77% of traditional building walls sampled in one   The history of Chinese cities can be traced back to 6,000 –
            study performed better than expected (Rye & Scott, 2012).   5,000 BCE, with physical evidence such as remnants of city
            The durability of historical buildings, evident in their   walls, suggesting that the history of Chinese architecture
            continued existence, illustrates the advantages of certain   may be over 8,000 years old (Steinhardt, 2019). The most
            materials. These materials were sourced in a pre-fossil fuel   common archetypal form of Chinese architecture is the
            era, resulting in low embodied carbon, which has long   courtyard building, a type of residential building known


            Table 1: Architectural advantages of historical buildings
            No.  Architecture type and       Objects                            Advantages
                 location
            1    Historical dwellings in the   Natural ventilation, sun   The dwellings are well adapted to the local climate in the summer, although
                 hot summer and cold winter   shading, and thermal   the thermal comfort of the interior is not entirely satisfactory in the winter
                 regions of China      insulation          (Gou et al., 2015).
            2    Traditional housing in Kashan,  Courtyard in the center of   Courtyards can positively improve ventilation performance, avoid using
                 Iran                  the house           modern ventilation systems, and reduce energy consumption (Roodgar
                                                           et  al.  2011).
            3    Tata Somba homes in Benin   Historical eco-technology   Using natural admixtures reduces the need for unsustainable synthetic
                 and Togo              for earth plaster stabilization  admixtures, improving the sustainability and cost-effectiveness of
                                                           construction materials (Ghida, 2024).
            4    Traditional Islamic   Wooden lattice openings  Installed in Mediterranean buildings, this system controls the natural light
                 architecture                              entering the building, regulates the airflow into the indoor environment,
                                                           mitigates climatic conditions, and ensures the comfort of the inhabitants (Di
                                                           Turi & Ruggiero, 2017).
            5    Iranian vernacular buildings  Water footprint analysis  When building construction follows a vernacular model, the grey water
                                                           footprint can be reduced by a factor of 327, providing valuable insights into
                                                           sustainable building practices (Hosseinian et al., 2023).


            Volume 6 Issue 3 (2024)                         3                        https://doi.org/10.36922/jcau.3187
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