Following the renovation of its head office in Amersfoort, Royal HaskoningDHV improved the energy efficiency of the building from a class G to a class A label. For a large office building constructed in 1970, achieving an energy performance similar to that of the current new building, is a unique result requiring an innovative approach.
Basic principlesThis sustainable renovation was based on several cast-iron principles:
- Boost energy savings.
- Maintain excellent user satisfaction.
- Comply with current demands in terms of fire safety and manageability.
- Stabilise the running costs of the building.
- Lifespan and function of the building are key to the design.
- Bring energy-saving measures and sustainable energy sources in line with the management of the building.
- Choose materials with a minimum environmental footprint and monitor the use and waste disposal phase.
MeasuresThe integral design includes a wide range of measures which together create a sustainable office building.
- The new fully glazed facade, with HR++ glass, combines improved daylighting with solar-controlled sunblinds, providing energy savings and extra comfort.
- The large roof has extra insulation and is finished with a light-coloured roofing material. Besides the added comfort and energy savings on heating, this makes the building cooler in summer and reduces the need for air conditioning.
- The lighting is equipped with presence detection and daylight circuiting, thus saving energy.
- Intelligent and energy-efficient climate control systems with low temperature heating and high temperature cooling recovers heat and moisture from ventilation air for reuse.
- Reuse and application of sustainable materials reduce the impact on the environment and surroundings.
- Innovative fire compartmentation with water mist screens optimise fire management.