Moorgate Crofts Business Park
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Moorgate Crofts Business ParkProject Name: Moorgate Crofts Business Park
Year: 2007
Owner: Rotherham Investment & Development Office
Location: Sheffield, South Yorkshire, England, UK
Building Type: Commercial
Type: Extensive & Intensive
System: Custom
Size: 12755 sq.ft.
Slope: 1%
Access: Accessible, Open to Public
Submitted by: The Green Roof Centre

Designers/Manufacturers of Record:
Architect: Rotherham Construction Partnership, Rotherham Metropolitan Borough Council
Main Contractor: Hall Construction
Green Roof Contractor: M and J roofing and planting, English Landscapes
Moorgate Crofts Business Centre is an innovative business incubation centre developed by Rotherham Metropolitan Borough Council. The state-of-the art building benefits from environmentally economic technologies such as geothermal heating and cooling, recycled materials and a 600sq/m green roof from Alumasc. Moorgate Crofts Business Centre occupies an elevated position overlooking the Don Valley is the first new building in the 25 year Rotherham Renaissance. The design of the building evolved to maximize the opportunities offered by a green roof and access the views across the valley.
Green Roof System: Alumasc warm roof system. Green Alumasc has supplied complete systems for two separate areas of the centre. The high-level roof features a sedum substrate, while the lower roof garden comprises a semi-intensive, bio-diverse system with paving to all four sides.

The flexibility of the system and technical expertise available from Alumasc enabled the designers to overcome a number of challenges on the building. Alumasc FS75 drainage board was incorporated into the build-up of the steeply sloping sedum roof to prevent slippage of the substrate. Sedum mats were also used to prevent high winds from eroding the plants and substrate. At lower level, the semi-intensive, bio-diverse roof garden was based on a Floradrain 40 drainage board to allow drainage to continue underneath the stone paving. The paving was bedded in ZinColit crushed brick to ensure the area was pervious to water and reduce the possibility of water build-up at the low threshold details. An Alumasc Derbigum anti-root system provided an efficient, durable waterproofing system that met all the technical demands of the application.

Size of Roof: 958m? (Extensive- 373m?, Semi-intensive-415m? planted, 170m? paved)
Roof Elements: Semi extensive roof
Type of roof: Roof Type Lower: concrete; Upper: metal Lower roof?200mm of substrate planted with drought tolerant perennials, ornamental grasses, bulbs and alpines; Upper roof- 50mm sedum mat system.

Additional thumbnail photos:

The Green Roof Centre was established by the University of Sheffield and Groundwork Sheffield working in partnership with the four South Yorkshire Local Authorities. See the case study from The Green Roof Centre here, and from Barbour Product Search here. For more information, please contact The Green Roof Centre c/o Groundwork Sheffield, The Innovation Centre, 217 Portobello, Sheffield, S1 4DP; Fax: 0114 263 6429; Website:
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