By Miftaudeen Raji

A trailblazing building expert, Iyiola Olaseni stands at the vanguard of the revolution of the construction industry.

His academic path at the esteemed University of Lagos acted as a catalyst for his relentless dedication to using modern technologies to change the built environment. Considering where his enthusiasm started, Mr. Olaseni shares, “I was particularly fascinated by the significant influence that improvements in building design could have on energy conservation initiatives during my graduate studies.”

This was the result of my earlier realization that computational tools and techniques could be employed for mitigating Urban Heat Island effect in cities, lowering energy consumption and the associated greenhouse gas emissions”.

Mr. Olaseni’s words indicate a profound enthusiasm for the integration of technology and sustainability in the construction industry. His academic endeavors with him attaining three (3) Graduate degrees established the basis for his innovative work in the application of urban scale environment modelling to enhance the energy efficiency of buildings and reduce their environmental impact.

Mr. Olaseni notes that as Nigerian cities continue to grow, its urban landscape faces a pressing environmental challenge—urban heat islands (UHIs). UHIs occur when urban areas become significantly warmer than their rural surroundings due to human activity, dense construction, and lack of vegetation.

The impact on Nigerian residents is profound, contributing to increased energy consumption, heat-related health problems, and environmental degradation. Mr. Iyiola Olaseni and his team conducted extensive validation studies in which Lagos, with its rapidly expanding population and infrastructure, and particularly vulnerable to these effects would be mitigated.

Iyiola’s works are on innovative solutions required to overcome these obstacles. Iyiola pioneers utilizing effective ways to mitigate UHIs through thoughtful residential building design such as integrating green roofs, reflective materials, and energy-efficient building systems in residential building design to significantly reduce the absorption of heat. Green roofs, for example, not only provide insulation to these buildings but also help absorb rainwater, reducing runoff and cooling the building’s environment. Furthermore, the use of reflective and light-colored materials on rooftops and facades can help lower the heat retained in these buildings, allowing for a cooler living space.

With Iyiola Olaseni leveraging these innovations, another crucial strategy is to incorporate natural ventilation and passive cooling techniques. Iyiola skillfully ensures that homes are designed with optimal cross-ventilation and shading elements such as overhangs or pergolas, for heat buildup to be minimized. Iyiola design approaches reduce the reliance on air conditioning systems to lower energy consumption and the associated greenhouse gas emissions.

Iyiola employs planting trees and increasing green spaces around residential areas, which are essential, as urban greenery not only provides shade but also helps reduce the heat absorbed by concrete and asphalt.

Iyiola’s justification for focusing on these solutions is clear. Addressing the UHI effect improves Nigerian residents’ quality of life, lowers energy costs, and contributes to a more sustainable and resilient country with cities such as Lagos at the forefront. With climate change amplifying the severity of these issues, it is crucial for architects, builders, and policymakers to collaborate in creating a cooler, greener Lagos and larger Nigeria for future generations.