BauderBLUE STORMsub System
Stormwater attenuation for SuDS
BauderBLUE STORMsub
Creating a blue roof within a green roof where the substrate and water retention board attenuate stormwater.
Extensive or biodiverse vegetation finishes can be coupled with a biosolar PV array for maximum environmental advantage.
Green roofs naturally, as part of their multi-layer design function, soak up water for the plants to use, retain it, and delay its run-off. Typically, a green roof will reduce annual run-off by 40-60% per annum*. However, simply using a green roof to attenuate water run-off has a major disadvantage, once saturated there is no control over the rate of water discharge so on its own it cannot be used to achieve a particular discharge rate.
The BauderBLUE STORMsub system utilises our BauderGREEN RE 40 drainage and attenuation board and BauderGREEN SUB-RE UK adapted lightweight substrate as the specific water attenuation components; all other components in the green roof are specified as normal to support the vegetation and safeguard the waterproofing.
When to specify
When a vegetated green roof finish is required the BauderBLUE STORMsub system creates a blue roof within a green roof build up where the substrate and water retention board attenuate stormwater. Extensive or biodiverse vegetation finish can be coupled with a biosolar PV array for maximum environmental advantage.
Plus points
- Greater depth of substrate improves the vegetation cover and the drought tolerance of the plants.
- Reduces the volume of plastics in the blue roof (84% reduction) compared to our STORMcell system with 100mm depth of BauderGREEN RWR 100.
- Suitable to use with our biosolar PV system.
- Can be used with Bauder’s full range of vegetation options to suit visual preference or Biodiversity Action Plan.
- A comprehensive range of guarantee packages to fulfill cover requirements for the project (dependent on system/product selection).
Roof finish options
- Green Roofs: Extensive and biodiverse vegetation
- BauderSOLAR G LIGHT photovoltaic system
BauderBLUE STORMsub
The waterproofing layer goes beneath, which can be used with Reinforced Bitumen Membrane or Hot Melt.
In-depth and up-to-date product-specific technical data is available for each element within a system.
Download system summary:
BauderBLUE STORMsub green roof
Function
Vegetation (Bauder range of vegetation used with other habitat features)
Additional information
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Each project is unique in its requirements and we have examples of our work available for you to look at. If you are looking for the right roof system, then get in touch with our team to discuss your project’s individual needs.
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