Green roofs

The importance of green roofs continues to grow within the modern urban environment, where the demand for additional green space is increasing rapidly. In many cities, integrating green roofs into new construction, reconstruction, or renovation projects has become mandatory as part of broader green infrastructure policies aimed at strengthening the urban landscape. Green roofs typically represent one of the most innovative and fast-growing solutions at the intersection of ecology, horticulture, and construction.

The performance and longevity of green roofs depend strongly on the quality of the growing media, including effective drainage and weight optimization. Well-designed green roof systems contribute to improved air quality by capturing fine dust particles and reducing urban heat stress. Agaris supports this development by working closely with its innovation team to create high-quality substrates based on circular materials while minimizing substrate weight, a key requirement for rooftop applications in dense urban areas.

Green roofs reduce the impact of heavy rainfall by buffering stormwater and improving water management. They enhance thermal roof insulation, cooling buildings in summer and offering additional protection against cold in winter. Green roofs also increase solar panel efficiency, promote biodiversity and create living rooftop ecosystems that support a variety of plants, insects, and birds, helping to restore ecological balance in cities.

Advantages of green roofs

Buffers heavy rainfall
Improves thermal roof insulation (cools in summer, protects against cold in winter)
Increased solar panel effeciency
Enhanced biodiversity
Encourages local fauna & flora
Living, vibrant results
Easy delivery options
…

Learn the key differences between extensive and intensive substrates, as well as between mineral and organic types, below. 👇

Extensive green roofs and Intensive green roofs

Extensive substrates

Suitable for sedums, grasses, herbs or host plants.

These systems provide good thermal insulation without imposing an excessive load on the roof and are suitable for both flat and sloping roofs.

Extensive green roofs are commonly used to enhance the urban landscape with minimal maintenance.

Intensive substrates

Creation of a complete gardens or park landscaping.

These systems have higher water needs and require regular care.

suitable for roofs or structures built on top of underground constructions, such as car parks, and play a key role in promoting biodiversity in cities.