A blue roof system is designed to catch and temporarily retain rainfall, before controlled release at a pre-determined rate. Blue roofs are not a new concept, but development has accelerated in recent years to reduce pressure on urban waterways and minimise local flood risks.
Blue roofs have many different design options, from open water catchment to complex tubing systems. The type of system you select will depend on several aspects, such as intended usage, local authority regs, roofing types and more.