Kipling garden calculator
Residents from the Kipling Estate used the Calculator to produce an outline design. This bespoke tool from the British Geological Survey calculates the water impacts of their design.
The calculator divides the rooftop into 49 square units measuring 32.65m2 each. It has four surface types:
- Extensive green roof (attenuates run off)
- Growing space with raised beds (attenuates, but also generates demand for water)
- Water storage with solar PV array, pump and drip irrigation system (meets demand and attenuates run)
- Amenity space for seating, pergolas, storage areas (no water impacts).
The calculator gauges the water impacts of the design, and prompts users to add enough water storage to meet any demand.