iAfrica

Be Smart About South Africa

Study with Vertical Greening Systems in Low-income Communities in Lagos and Dar es Salaam

According to the latest Intergovernmental Panel in Climate Change assessment report, heat exposure in Africa is projected to increase in terms of person-days. Heat exposure challenges are increased by a shortage of basic services and infrastructure, along with low-quality housing, poor socio-economic conditions and few green spaces in slums and informal settlements. The experiment established that vertical greening was a solution for heat problems in informal neighbourhoods. And it had the added benefit of providing healthy food in the form of vegetables. From a typical prototype in Nigeria, up to 1kg of vegetables were harvested in a six-week cycle. In Dar es Salaam, the different vegetables yielded varying quantities. The vertical gardens also affected the indoor air temperature of the rooms they enveloped. Up to 2.88℃ maximum temperature and 0.7℃ minimum temperature reductions were recorded during a 45-day field measurement campaign held in September and October 2021 in Lagos. Wall temperature reduced by as much as 5°C during the 30-day measurement campaign undertaken between December 2020 and January 2021 in Dar es Salaam.

SOURCE: THE CONVERSATION

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