Advanced Energy-Efficient Materials for Sustainable Development: The Role of Aerogels in Building Thermal Insulation

As the building sector accounts for a significant share of global energy use and carbon emissions, improving thermal performance has become a critical priority for sustainable development. This study investigates the application of aerogel-based insulation materials in residential buildings across three climate zones—cold, temperate, and hot- arid. Using both analytical modeling and dynamic Phython simulations, we compare the energy performance of conventional insulation systems with those enhanced by silica aerogels. Results reveal that aerogels reduce annual HVAC energy demand by 18% to 41%, depending on climate. Heat loss analysis shows walls are the primary source of loss in cold zones, while windows dominate in warmer climates. Aerogel integration led to significant CO₂ emission reductions and improved thermal comfort. Despite current cost challenges, aerogels offer a lightweight, high- performance solution for climate-responsive and energy-efficient building design. Their potential role in future-ready construction is substantial and growing.

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