viherkattojen

Viherkattojen, also known as green roofs, are roof surfaces that are at least partially covered with vegetation and a growing medium, planted over a waterproofing membrane. They can be extensive or intensive, depending on the depth of the growing medium and the types of plants used. Extensive green roofs are shallow, lightweight, and typically planted with sedums or other low-growing, drought-tolerant species. Intensive green roofs have a deeper growing medium, allowing for a wider variety of plants, including shrubs and even small trees, and can often be used as accessible outdoor spaces.

The benefits of viherkatot are numerous. They help to reduce stormwater runoff by absorbing and retaining precipitation, which can alleviate pressure on urban drainage systems. They also improve air quality by filtering pollutants and producing oxygen. Furthermore, green roofs can enhance building insulation, reducing heating and cooling costs and contributing to energy efficiency. Ecologically, they provide habitat for birds, insects, and other wildlife, increasing urban biodiversity. Viherkatot can also mitigate the urban heat island effect by reducing surface temperatures compared to traditional dark roofs. The installation and maintenance requirements vary based on the system type and climate.