BIODIVERSUM in Remerschen

Stakeholders

Contractor

Administration Bâtiments Publics

SGI Ingenieure Junglister

Thermal consultancy agency

BETIC S.A.

Owner approach of sustainability

The building is a wooden construction. The construction is referenced in the Cradle to Cradle approach.

Architectural description

Located in the Haff Réimech nature park, the project benefits from the reconquest by the fauna and flora of the industrial site of Remerschen. The designers of Biodiversum, a center dedicated to biodiversity, have stabilized a peninsula and have taken advantage of the lake's water to prescribe a geothermal heating system. The building takes the form of a boat hull returned to the shore. It stretches over 62 m long and rises in R + 2, but its impact on the landscape is reduced because the ridge is lowered to the ground and the ground floor is partially buried. The north gable, it widens and presents a large curtain facade to offer a panoramic view on the plan of water. The hull of the building is divided into eight bays in order to carry the intermediate floors. However, no portico can be perceived under the vault: a mesh of diagonal lines constitutes the support of the interior cladding while ensuring the bracing of the framework. This ogive folding grid was built with four layers of Douglas blades in 3 cm thickness. It receives planks of the same wood, spaced 10 mm apart to absorb the sound. The entire wooden construction represents a volume of 500 m³. The vault opens on the outside by fifteen narrow bays which evoke as much the gills of the fish as the visors of the small observatory windows. These randomly animate the garment which uniformly covers the main nave. The red cedar cladding, sometimes painted in tavaillons, evokes a vernacular architecture of a different age. On the western side of the hall, the cafeteria offers an unobstructed view of the pond, through a glass façade compartmentalized in diamond, reminiscent of the main fishnet.

Energy consumption

• Primary energy need : 35 kWhep/m².an
• Primary energy need for standard building : 166 kWhep/m².an

RGD du 31 août 2010 - bâtiment fonctionnel

Real final energy consumption

147 798

2 016

Systems

Heating system :
• Geothermal heat pump
• Low temperature floor heating
Hot water system :
• No domestic hot water system
Cooling system :
• No cooling system
Ventilation system :
• Natural ventilation
• Nocturnal ventilation
Renewable systems :
• Heat pump (geothermal)

GHG emissions

• GHG in use : 41 KgCO₂/m²/an

Life Cycle Analysis

Wood Construction

Product

Heating floor
OPAL SYSTEMS
Rue de l’Industrie, 11 B-1400 Nivelles Tél. : +32 (0)67 688 288 Email : info@opal-systems.be

HVAC, électricité / heating, hot water

One of the special features of the OPAL SYSTEMS solution lies in the direct contact between the pipes, the diffusers and the floor covering. A milled groove in prefabricated panels fixed to the floor welcomes metal profiles and pipes which it is then sufficient to "clip" by a pressure of the foot. The diffusion of heat is most optimally ensured by specific diffusers and a mesh of expanded metal which, in combination with the tile or parquet adhesive, arms the whole structure. The upper cap is therefore no longer necessary. This new heat transmitter reduces the energy consumption for the heating of buildings in the residential and tertiary sector, both in new construction and renovation. It ensures superior thermal comfort with the best systems currently available on the market and allows the installations to achieve high overall efficiencies thanks to its greater reactivity and its operation at low temperature.

...

Urban environment

The building is on the edge of a nature reserve.

Building Environmental Quality