Sharrow Primary School
Bauder biodiverse green roof system
Synopsis
Restricted ground space opened up the opportunity to create green roofs at three levels for play space, and outdoor classrooms and a 2000m² biodiversity roof designed to replicate a meadow, complete with cornflowers and other urban plants. It is also a haven for birds and other kinds of wildlife, with rotting tree stumps provided for many kinds of insects. All of roofs are used as a learning resource with curriculum-friendly uses for all the children.
Sharrow Primary is Sheffield’s greenest school, with a heating system powered by warmth coming up from deep in the earth and toilets flushed by rainwater, further proving that Sharrow School is a real testament to what can be achieved and is a landmark construction that raises the benchmark. This sustainable building was delivered on time and within budget with ongoing whole life cost savings.
The Bauder green roof on Sharrow Primary School in Sheffield was the first in the country to be declared a nature reserve. A fitting accolade for a school that defies traditional ideas of what a school should be.
Bauder Building Board
| Project: |
Sharrow Primary School |
| Investor: |
Sheffield City Council |
| Location: |
Sheffield |
| Roof Area: |
2000m2 |
| Architect: |
Sheffield City Council |
| Contractor: |
Malden Roofing Contractors |
The specification
Restricted ground space opened up the opportunity to create green roofs at three levels for play space, and outdoor classrooms and a 2000m² biodiversity roof designed to replicate a meadow, complete with cornflowers and other urban plants. It is also a haven for birds and other kinds of wildlife, with rotting tree stumps provided for many kinds of insects. All of roofs are used as a learning resource with curriculum-friendly uses for all the children.
This system is an A+ rated Bauder waterproofing system with 120mm of PIR insulation which achieves a U value of 0.2W/M²K beneath the 1200m² biodiversity wildflower roof constructed on a concrete deck. Additionally, this system aids in resolving water run-off problems and assisting in the control of storm water, humidity, noise, heat and pollution.
The result
Sharrow Primary is Sheffield’s greenest school, with a heating system powered by warmth coming up from deep in the earth and toilets flushed by rainwater, further proving that Sharrow School is a real testament to what can be achieved and is a landmark construction that raises the benchmark. This sustainable building was delivered on time and within budget with ongoing whole life cost savings.
System installed
Biodiverse green roof system
| 1 BauderGREEN Plugs |
The 'plugs' are varieties of sedums, grasses, herbs, and perennials and are planted by hand to the required density. The more plugs per square metre, the faster the vegetation will establish to cover the roof entirely. |
| 2 BauderGREEN SUB-BM UK |
A lightweight growing medium for biodiverse green roof planting schemes manufactured to FLL guidelines. |
| 3 BauderGREEN FV |
Polypropylene fleece to prevent substrate fines from entering the drainage element. |
| 4 BauderGREEN DSE 40 |
Multi-functional water storage and drainage layer. |
| 5 BauderGREEN FSM 600 |
This protection mat acts as a heavy-duty protective layer made from polyester and polypropylene fibres. |
| 6 BauderPLANT E |
A root resistant, SBS modified bitumen membrane reinforced with 250g/m² recycled spunbond polyester. |