Blue Roof rainwater attenuation systems are designed to manage stormwater at roof level by controlling stormwater discharge and rainwater management required by local authorities regarding surface water management, particularly where ground based attenuation systems are not viable or restricted. Every blue roof design is specific to the individual project and its unique water management requirements, providing many advantages including;
- Controlled stormwater discharge
- Contribution to the overall BREEAM rating of a building
- SUDS (Sustainable Urban Drainage System) compliant
- BMI Waterproofing system and BMI Canopia Green Roof compatibility
- Single-source full system design & specification
Blue roof design comprises; flat roofing or waterproofing, blue roof flow control outlets, suction and capillary fleece, attenuation drainage, water retention layer, filter, protection and storage geotextiles. Surface finishes can include green roofing systems.
Combining storm water management with ecology
The BMI Blue Roof system solution, not only includes the water management and attenuation system but also the waterproofing, insulation and ballast. A BMI Canopia green roof system can be specified in conjunction with the BMI Blue Roof water attenuation design in order to combine the ecological benefits of a green roof with the sustainability and high performance drainage and stormwater management advantages provided by the blue roof system.