project report – the edge
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• 2,300 work spaces (all businesses)
• 2,600 occupants (Deloitte)
• 1,100 work spaces (Deloitte)
• 25 per cent of space is coffee/breakout gross
• 40,000 m2 built area
© Ronald Tilleman
downdraft in winter and technically speaking the light is substandard – yet it has proven to be one of the most poplar work areas.”
World-class sustainability
The Edge’s ventilation and heating system exploits the local district’s natural aquifer beneath the building, using the water's consistent 13o
C heat to regulate the building’s
temperature in summer and winter with minimal energy use, enhancing its sustainability credentials still further. Water is pumped round a network of tubes within thermal
ceilings on each floor, the water being relatively warm or relatively cool in relation to the air temperature, depending on the time of year. Fresh air is drawn in and pushed into ceiling spaces and
warmed or cooled by the pipes and mechanically circulated through the ceiling systems, then ‘leaked’ into the atrium to maintain a comfortable temperature, before being drawn back into the plant room at the top of the atrium. Rainwater is harvested and used to water the landscaped areas and gardens and flush the building’s toilets. Externally, an attractive landscaped terrace sits between
the building frontage and the motorway, forming part of a wildlife corridor. As well as its continuous path of carefully selected vegetation attracting bees and other beneficial insects, there are discretely located bird and bat boxes. The Edge’s ‘workspace reservation’ system, linked to
the BMS, also plays a crucial energy-saving role, a fact acknowledged by Andre Droge from DGMR, the project’s BREEAM Assessor (BREEAM-NL and BREAM International). He explains: “People book workspace in advance through the smartphone app. The BMS then offers them an optimum area in terms of both the task and energy usage. “For example if it’s hot the system might suggest a
workspace in a cooler north-facing area. This makes it possible to use some floors very efficiently; in some cases you don’t need use them at all, saving a lot of cooling and heating.” Interactions between people and the building are carried
© Ronald Tilleman
out via ethernet-powered LED ‘connected lighting’ units, linked via wi-fi and each possessing their own IP address. They communicate with the building through sensors that measure
movement, location of people, lighting, CO2 levels, temperature and humidity. Through the customised phone app, occupants control
some of these elements – temperature, humidity and lighting – to enhance their local environment. The building can even be asked to preset working conditions to known preferences. Droge asserts: “In many ways The Edge represents the
future of office buildings. It has sustainability designed into its architecture and interiors, and boasts excellent energy performance and impressive ecological features. The flexible workspaces combined with building management and reservations systems allow for maximum efficiency.” “To succeed in this way, sustainability has to be in the
‘genes’ of the entire team – clients, architects, stakeholders, constructors and suppliers. Everyone has to be ambitious from the outset – just going for the low hanging fruit won’t earn you BREEAM Outstanding.” He concludes: “Only by stretching to grasp the difficult
challenges, as the team behind The Edge did, do you create a world class example of a sustainable building like this.”
Clients:OVG Project development:OVG Architect: PLP Architecture Interior architect: Fokkema & Partners Architecten Local Architect: OeverZaaijer Structural Engineer: Van Rossum BREEAM assessment:Andre Droge, DGMR MEP consultant: Deerns Contractor:G&S Bouw Sustainability consultant:C2N Bouwmanagement Facade contractor: Rollecate Glass roof: Brakel Atmos Main lighting: Philips Power Over Ethernet
BUILDING PROJECTS
www.architectsdatafile.co.uk
• 4088 m2 panels
of solar
• 28,000 sensors fitted
•50 per cent less energy used than typical modern office block
• 15 storeys high
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