About

The Old God Park School is one of the Schools of Tomorrow, the Flemish government’s renovation and renewal programme. The passive standard must be met, so sustainability is an important factor, along with a comfortable and healthy learning environment.

Challenge

The client set some clear preconditions. Energy and water consumption, for example, had to be kept to a minimum, as did maintenance costs. The systems had to be easy to operate, provide optimum comfort, and be robust.

Solution

The technical design focuses on a windproof outer shell, in a solid construction, with cantilever windows and chimneys. These simple interventions allow for natural ventilation and night cooling, and avoid complex installations. Green roofs and rainwater buffers optimise water consumption.

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Client(s)

  • Town of Mortsel

Architect(s)

  • CrepainBinst Architecture

Certificate(s)

  • Passive construction

Location

Mortsel, Belgium

Timeline

2007

2017

Expertise Team(s)

  • M&E Engineering

  • Structural Engineering

  • Sustainable Design

  • View more...

Design Solution(en)

  • Sustainability Assessment

  • Life Cycle Cost Analysis

  • Building Simulations

  • Building physics

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Education mortsel parkschool 5

Initially, a sustainable design is to make complex technical systems redundant.

Valerie Vergaert

principal sustainable design, VK architects+engineers

A number of school projects are built under the passive standard, within the scope of the Flemish decree "Energy performance in schools". As one of these sample projects, Oude God harbors three schools, primary and nursery. The commissioning authority did set some preconditions. Thus, energy and water consumption were to be kept to a minimum, as must the maintenance cost. The equipment had to be easy to use, provide maximum comfort, and be robust. VK was responsible for the complete engineering job.

Initially, a sustainable design is to make complex technical systems redundant. Good insulation in both walls, including the glazing and roofs is essential. A windproof exterior shell also reduces infiltration losses. With a solid structure, folding windows, and fireplaces one can apply natural ventilation and night cooling. Large glass surfaces supply all rooms with plenty of daylight, while outside blinds help prevent overheating. Green roofs that double as rooftop gardens delay rainwater from running off into the sewer system, while tanks buffer the rainwater for maintenance and sanitary use.

The remaining energy demand is met with energy saving measures. For instance, most classrooms are fitted with floor heating, a low temperature heating system, combined with condensing gas boilers. Ventilation in the winter is mechanical, because it is too cold for natural ventilation. In addition, the heat from the exhaust air is recycled. The lighting, whether fluorescent lamps or energy-saving bulbs, automatically switch on according to occupancy and available daylight.

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