Red Seal Roofer Practice Exam 2026 – Complete Test Preparation

The selection of green roofs as an alternative roofing material highlights a sustainable approach to building design and urban development. Green roofs involve the cultivation of vegetation planted on rooftops, which offers numerous ecological benefits. They contribute to energy efficiency by providing natural insulation, reducing the demand for heating and cooling. Additionally, they absorb rainwater, mitigating stormwater runoff and reducing the burden on urban drainage systems.

Furthermore, green roofs enhance biodiversity by creating habitats for various species, contribute to air quality improvement through the absorption of pollutants, and can lower urban heat island effects, promoting a cooler environment in city areas.

In contrast, while clay tiles and metal sheets are durable and offer some environmental benefits, they do not provide the same level of ecological engagement and urban infrastructure enhancement as green roofs. Asphalt shingles, while commonly used, are not considered sustainable materials due to their petroleum-based origins and less favorable lifecycle impacts. Therefore, green roofs stand out as a leading sustainable choice in roofing materials.