Sustainable lighting performance of refurbished glazed walls for old residential buildings: Fid-Bau Portal

Sustainable lighting performance of refurbished glazed walls for old residential buildings

Kim, Gon / Lim, Hong Soo / Kim, Jeong Tai

Highlights • A sustainable configuration of double skin for old buildings is proposed. • The double skin reduces direct sunlight by about 50% in rear deep spaces. • Increasing cavity width without shading device makes no impact on daylighting. • A cavity depth of 90cm with 20cm-wide slats is demanded for better daylighting. • Slat angles between 0° and 30° are recommended on all orientation except North.

Abstract The application of large area of glass is still the main utilized strategy to count for the deep-rooted preference for the full external view as well as daylight penetration in residential buildings. However, for the successful renovation of old residential buildings, the application of full-height glass window should be made a major priority. This paper presents a sustainable approach on the current set-up of the multi-apartment renovation process in terms of sustainable lighting. Among the conducted investigations, the paper includes the case study analysis for the experimental applications of a double skin facade aimed at finding out the optimal configurations that could utilize daylighting demands. Also, currently applied mechanisms in the identification and evaluation of daylighting efficiency, data analysis for the measuring of light energy efficiency as well as the processes involved in the determination of daylighting feasibility control for the renovation process utilizing the developed glazed wall are presented in this paper. This paper gives an insight into recommendations and research findings that could be used to further improve this process.