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College roof with Bauder green components

Green and Blue Roofs

Support the environment with green spaces for people and wildlife, and rooftop SuDS when incorporating a blue roof.

Green and blue roofs

Green and blue roofs are important for the modern world as they both support the environment around us in different ways. These roofs can be specified together on the same roof space and can even incorporate a biosolar PV array to maximise the roof space.

In addition to the ecological and aesthetic functions, green roofs are becoming a central building block for restricting rainfall into drainage systems.

Bauder has created many traditional green roofs as well as diverse ones such as parkland, allotments, Japanese gardens and zoological enclosures. We use recycled and reclaimed materials in the landscaping components of our green roofs, further enhancing the environmental benefits of a Bauder green roof.

The way rainwater is handled in cities is currently undergoing fundamental changes with the emphasis moving to attenuation rather than fostering channelling and run-off.  A blue roof is specifically designed to attenuate measured amounts of not only rainfall but also stormwater for a 1:100-year event.  The stormwater is then released at a specified flow rate over a set period of time, typically 48 hours.

Every green roof also reduces and delays the runoff of rainfall and the greater the depth of substrate the greater the attenuation ability.

Our green and blue roof solutions

Modern buildings are required to have as little impact on their surrounding environment as possible. Using a Bauder green or blue roof or both is the perfect opportunity to maximise the traditionally unused space of a flat roof especially when also incorporating a biosolar PV array. So much better than just using the space for rooftop plants or machinery.

Now the specifier can turn a flat roof into a usable facility.

How Bauder systems deliver solutions that support the environment

Our sustainably focused green and blue roof solutions, improve biodiversity and create recreational spaces for people to enjoy and retain rainfall and stormwater.

Find out how our range of reinforced bitumen membrane systems, single ply, hot melt and cold liquid applied waterproofing is suitable beneath the different types of green and blue roofs. and how adding a biosolar PV array maximises a roof space and generates renewable energy.

Attenuate rainfall run-off and mitigate localised flooding

A blue roof offers a sustainable drainage method designed to manage stormwater on a flat roof for up to a 48-hour period. Ideal for urban areas where ground-based attenuation systems are limited or where construction is being carried out within a flood sensitive area.

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Create a sustainable environment

Each green roof brings back a piece of nature and the roof space can be vegetated to suit the access levels desired. Our green roofs can be designed specifically to support a biodiverse habitat through to creating outdoor spaces for people to enjoy.

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Aid to planning consent

Green and blue roofs are increasingly becoming a criteria for planning, especially in urban areas where the drivers are to increase the availability of natural habitats for insects and associated wildlife and to reduce surging volumes of stormwater entering drainage systems.

LEED and BREEAM ratings

Green and blue roofs certainly contribute to the Leadership in Energy and Environmental Design (LEED) or Building Research Establishment Environmental Assessment Methodology (BREEAM) score alongside all the other factors for the building that need to be considered for these accreditations.

Adopting standards

Across Europe, the standards most widely recognised as comprehensively covering green roofs are those of the Forschungsgesllschaft Landsschaftsentwicklung Landsschafttsbau (FLL) and in the UK by the Green Roof Organisation (GRO). We adopt and follow these well respected standards for our green roof products and technical design service.

Transform a flat roof

Green and blue roofs add another dimension to the roof turning it from a flat area previously only used for locating plant and machinery to one that creates a facility to be used for the benefit of people and the environment.  These can contribute to an increase in property value.

Your project commands our attention

There are fundamental principles that apply to the design of green and blue roofs that will protect the building's construction and our design team can support you through all the considerations when configuring the the solution for your project.  We will assist you from the conceptual stage in developing a practical solution and ensure long-term performance.

Working with you to understand

Working with you to understand

Our technical managers are based nationwide and play a vital role in the success of every project incorporating a vegetated finish, hard landscaping or SuDS roof, we deliver hundreds of green and blue roofs each year and are respected across the industry for our expertise.  We work with you to understand:

Our service to you

Our service to you

Our complete service encompasses initial design advice on waterproofing, components and landscaping for green roofs, blue roof capacity and its surface finish, through to detailed and comprehensive specification package.

Watch how Bauder green and blue roofs attenuate rainwater

  • how a blue roof works to attenuate stormwater

    BauderBLUE STORMsub system

    How a blue roof with a vegetated green roof finish provides rooftop SuDS to attenuate and slow the release of stormwater from a flat roof

    Watch Video
  • How a green roof attenuates rainwater

    How a green roof manages rainfall

    A green roof attenuates rainfall and reduces the levels of water exiting the roof into the drainage system

    Watch Video
Specification resources available in the technical centre

Contact us today about your green or blue roof project

Each project is unique in its requirements, and we have lots of resources and examples of our work available to help guide you. If you are looking for a green or blue roof solution for a new build or refurbishment project, then get in touch with our team to discuss your project’s individual needs.