Green roofs

Green roofs are building rooftops that are partially or fully covered with vegetation, soil layers, and drainage systems, designed to mimic natural landscapes while offering practical environmental benefits. By absorbing rainfall, they reduce stormwater runoff, lower the risk of flooding, and filter pollutants before water enters drainage systems. The soil and plants also provide insulation, helping to regulate indoor temperatures by keeping buildings cooler in summer and warmer in winter. This energy efficiency reduces reliance on heating and cooling systems, cutting costs and lowering greenhouse gas emissions. Additionally, green roofs extend the lifespan of roofing materials by protecting them from ultraviolet radiation and extreme temperature fluctuations.

Beyond their functional role, green roofs contribute significantly to urban sustainability and livability. They provide habitats for pollinators and birds, increase green space in densely built areas, and help mitigate the urban heat island effect by cooling surrounding air. In commercial and residential settings, they can also be designed as recreational or community spaces, enhancing mental well-being and property value. Advances in lightweight materials and modular systems have made green roofs easier to install and maintain, even on existing buildings. When combined with other sustainable infrastructure such as rain gardens and permeable pavements, they form an integral part of climate-resilient city planning. Ultimately, green roofs transform underutilized rooftops into productive, eco-friendly landscapes that support both people and the environment.