Why would I want a green roof?

Apart from the aesthetic value and the strong positive statement associated with sustainable design principles, green roofs are typically specified for any one, or combination, of:
- Ecological or environmental benefits
- Building performance enhancements
- Financial incentives
- Planning requirements
The nature and extent of these benefits will vary with the specific green roof construction. Extensive green roofs can be designed to provide a multitude of benefits, such as SUDS or thermal insulation; biodiverse roofs provide environmental benefits through the conservation of the natural environment and enhancement of biodiversity; intensive roofs typically serve recreation or amenity purpose.