1. General information
Location and description of the intervention
City or FUA
Sheffield
Region
Europe
Short description of the intervention
The 2,044 square meters green roof on Sharrow School in Sheffield is designed to reflect the different habitats surrounding the city and includes a wildflower meadow and grassland plants as well as a wetland area with a small pond. The aim of the green roof was to provide added value by assisting the control of stormwater, humidity, noise, heat and pollution. It has been declared as a Local Nature Reserve by Sheffield City Council with the support of Natural England, in recognition of the importance of the roof to wildlife and educating the school's pupils about nature and the environment.[1][2]
Address

Sitwell Road
Sheffield,
S7 1BE
United Kingdom

Total area
2044.00m²
NBS area
2044.00m²
Type of area before implementation of the NBS
Timeline of intervention
Start date of the intervention (planning process)
2006
Start date of intervention (implementation process)
2007
End date of the intervention
2007
Present stage of the intervention
Goals of the intervention
The aim of the green roofs was to provide added value by assisting the control of stormwater, humidity, noise, heat and pollution. It is also used as a learning resource with curriculum-friendly uses for all the children.[1][3]
Quantitative targets
Restricted ground space opened up the opportunity to create green roofs at three levels: for play space, outdoor classrooms (44 square meters), and a sort of rooftop nature preserve (2000 square meters). [1][3]
Monitoring indicators defined
Unknown
Please specify "other Type of NBS project"
Green Roof Project [1]
Implementation activities
The key design goal for the roof was to create plantings with dramatic visual impact for much of the year, high biodiversity value, and minimal resource and maintenance requirements. Almost 700 plants were planted by volunteers from within the community. The green roof was designed with different vegetation types to provide a range of habitats for invertebrate and bird species. This was achieved in a number of ways, including the use of a variety of substrates to create varied soil conditions that promote the establishment of different plant communities. Plants were largely allowed to colonize naturally, and some seed mixes were specifically introduced to benefit pollinators in particular. Green Estate has been undertaking regular ongoing maintenance at Sharrow School for the last six years. Maintenance tasks are carried out with the aim of optimizing the health of the vegetation and maintain the individual habitats. [1][4]
Type of NBS project
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Nature on buildings (external)
Green roofs
Vegetation Type
Services
Expected ecosystem services delivered
Regulating services
Local climate regulation (temperature reduction)
Air quality regulation
Noise reduction
Flood regulation
Pollination
Habitat and supporting services
Habitats for species
Cultural services
Aesthetic appreciation
Intellectual interactions (scientific and / or educational)
Please specify "other cultural service"
Educational services [1]
Scale
Spatial scale
Sub-microscale: Street scale (including buildings)
Beneficiaries
Governance
Non-government actors
Public sector institution (e.g. school or hospital)
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The roof was built on the new Sharrow Primary School which was born out of the amalgamation of Sharrow Infant and Nursery School and Sharrow Junior School following a review of schools in the Sharrow, Abbeydale and Heeley areas identified an oversupply of school paces for the number of children needing them. The investor and architect of the green roof were the Sheffield City Council who contracted Malden Roofing Contractors for the installation. Its design came from the Green Roof Centre. [2][5]
It is one of 120 green roofs in Sheffield, which claims to be the ''green roof capital'' of the UK, and was designed by the Green Roof Centre which was founded by Sheffield University and Groundwork Sheffield. [2]
Key actors - initiating organization
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Public sector institution
Citizens or community group
Participatory methods/forms of community involvement used
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Unknown
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Unknown
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Unknown
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Unknown
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Unknown
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Yes
Please specify
Sheffield City Council provided the investment for the installation of the green roof. [5]
Co-finance for NBS
Unknown
Co-financing governance arrangements
Unknown
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
Total cost
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
Unknown
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
Unknown
Source(s) of funding
Non-financial contribution
Yes
Type of non-financial contribution
Who provided the non-financial contribution?
Which of the involved actors was motivated by this model?
Type of innovation
Please specify technological innovation
Sharrow School is a primary education school located in the Sharrow area of Sheffield. The green roof was factored into the construction of the new school in 2006 as a way of providing space for nature, managing storm water, and offering a learning resource for the children of the school. The green roof was designed with different vegetation types to provide a range of habitats for invertebrate and bird species. The roof also acts as a haven for birds and other kinds of wildlife, with rotting tree stumps provided for many kinds of insects. All of the roofs are used as a learning resource with curriculum-friendly uses for all the children. [4][6]
Please specify novelty level of the innovation
The green roof on the Sharrow School is the First Green Roof in the UK to Achieve Nature Reserve Status. It has been declared as a Local Nature Reserve by Sheffield City Council with the support of Natural England, in recognition of the importance of the roof to wildlife and educating the school's pupils about nature and the environment. [2][3]
Replicability/Transferability
Please specify Replicability/Transferability
The Sharrow School is a real testament to what can be achieved and is a landmark construction that raises the benchmark.[2]
Impacts, benefits
Description of environmental benefits
A green roof os 2044 sq m was created, designed to replicate a meadow and complemented with cornflowers and other urban plants. It also attracts birds and other kinds of wildlife, with rotting tree stumps provided for many kinds of insects. All of the roofs are used as a learning resource with curriculum-friendly uses for all the children [7].
It will work as a way of managing extreme weather - lowering the temperature [7]
The green roof on Sharrow Primary School in Sheffield was declared a Local Nature Reserve by Natural England back in 2009. The school is the first green roof in the UK to achieve this status which recognises the impact of the green roof both in attracting local wildlife and the education of the pupils at the school.[2][7]
A weather station and webcam was installed for research by The Green Roof Centre to record wildlife on the roof. [1]
Economic impacts
Description of economic benefits
Unknown
Description of social and cultural benefits
As green roof replicates bio-diverse meadows, it could be used as a learning resource with curriculum-friendly uses for all the children, supporting scientific research for the implementors [7].
The roof is valued by both staff and pupils as a great resource to get children out of the classroom to learn about wildlife and our local environment. It has been touted as exemplary by Natural England in being a novel way to both support wildlife and manages extreme weather events. [2][7]
Type of reported impacts
Indicators
Unknown
Analysis of specific impact categories
Job creation: The NBS created ...
Please specify other method used to evaluate the impacts of NBS
A weather station and webcam was installed for research by The Green Roof Centre to record wildlife on the roof [1].
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
Unknown as of July 2020
Methods of impact monitoring
Process of recording NBS impacts
Methods used to evaluate the impacts of NBS
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Yes
Presence of indicators used in reporting
Yes
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Impact assessment mechanism
Name of any specific impact assessment tools
The Green Roof Centre records wildlife that visit the roof. Aside from this, a management plan was produced in 2009 to ensure the distinct character of each habitat is maintained through regular maintenance. Green Estate has been undertaking regular ongoing maintenance at Sharrow School for the last six years. Maintenance tasks are carried out with the aim of optimising the health of the vegetation and maintain the individual habitats. [4]
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Unknown
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
List of references
1] Greenroofs.com. 2018. Sharrow Primary School - Greenroofs.Com. [online] Available at: <http://www.greenroofs.com/projects/pview.php?id=756> [Accessed 8 August 2020].
[2] Telegraph.co.uk. 2009. School First With Rooftop Nature Reserve. [online] Available at: <https://www.telegraph.co.uk/news/earth/earthnews/6259834/School-first-with-rooftop-nature-reserve.html> [Accessed 8 August 2020].
[3] Bauder.co.uk. 2020. School Roof Declared A Nature Reserve - Bauder. [online] Available at: <https://www.bauder.co.uk/about-us/media-centre/press-archive/school-roof-declared-a-nature-reserve> [Accessed 8 August 2020].
[4] Green Estate Landscapes. 2020. Sharrow School - Green Estate Landscapes. [online] Available at: <https://www.greenestatelandscapes.co.uk/case-study/sharrow-school/> [Accessed 8 August 2020].
[5] Bauder.co.uk. 2009. Sharrow Primary School - Green Roof System Case Study - Bauder. [online] Available at: <https://www.bauder.co.uk/technical-centre/technical-literature/case-studies/green-roof-case-studies/sharrow-primary-school> [Accessed 8 August 2020].
[6] Bauder.eu. 2009. Sharrow Primary School. [online] Available at: <https://www.bauder.eu/en/references/green-roof/sharrow-primary-school.html> [Accessed 8 August 2020].
[7] Barbourproductsearch.info. 2011. Bauder Green Roof On Sharrow Primary School Declared A Local Nature Reserve. [online] Available at: <https://www.barbourproductsearch.info/bauder-green-roof-on-sharrow-primary-school-news015372.html> [Accessed 8 August 2020].
Comments and notes
Public Images
Image
Sharrow School Green Roof