Abstract

Passive cooling techniques have been a problem in design and construction, due to climatic factors, fossil fuel usage, and other environmental issues that have been on the rise. This review paper is aimed at revisiting various passive cooling techniques that have been applied in the past and contemporary techniques that are being applied now. Research in passive cooling techniques has been proposed throughout the world. This research will focus on the use of the bio-mimic concept approaches that have been adopted in the design and construction of buildings around the world. Case studies of biomimicry design approaches like the East Gate Office building in Harare used the concept of termite mounds, natural techniques, and sustainable materials to cool the building. Rooftop garden construction techniques have created a balance in the temperature of indoor spaces in buildings, as seen in the Vancouver Convention Center in Canada. This review paper is limited to bio-mimic design approaches to passive cooling techniques, and it is seen to have significant solutions to energy efficiency in buildings. Further studies can also be carried out in search of alternative methods or approaches that can be adopted for sustainable design techniques.