BEI DE KUEBEN HOUSE
Last modified by the author on 23/05/2018 - 08:46
New Construction
- Building Type : Preschool, kindergarten, nursery
- Construction Year : 2016
- Delivery year : 2017
- Address 1 - street : 7410 ANGELSBERG, Luxembourg
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 2 300 m2
- Construction/refurbishment cost : 5 500 000 €
- Number of Children : 15 Children
- Cost/m2 : 2391.3 €/m2
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Primary energy need
55.9 kWhep/m2.an
(Calculation method : RGD du 31 août 2010 - bâtiment fonctionnel )
See more details about this project
https://coeba.lu/projekt/kindertagesstaette-angelsberg/Data reliability
Assessor
Contractor
Stakeholders
Designer
coeba, dave lefèvre et associés
Marcel Emdé
https://coeba.lu/-
Schroeder & Associés Ingénieurs-Conseils
https://www.schroeder.lu/-
Other consultancy agency
Betic Ingénieurs-Conseils
Georges KIORPES
http://www.betic.lu/-
Environmental consultancy
Luxcontrol
https://www.luxcontrol.com/-
Owner approach of sustainability
In 2015, the municipality of Fischbach is launching the project to build the new relay house and the extension of the basic school (Cycle 1), with the aim of creating a welcoming and environmentally friendly space. Faced with the increase in the population and consequently the growing need for school infrastructures, this choice has made it possible to provide a complete response to needs by integrating urban planning, functional and technical considerations with the saving of resources, ecology and the biology of materials. The Fischbach municipal administration, which has been heavily involved in the Climate Pact since 2013, is demonstrating with the construction of this new building that a new type of construction is possible. Meeting the strictest standards, the building is part of a new direction in terms of economic and ecological prospects. The complex has been designed by all stakeholders to be CO2 neutral through reduced technologies and the highest level of use of renewable, environmentally friendly and recycled building materials. The pedagogical approach is not in rest, quite the contrary. The facilities selected enable children to be made aware of the use of natural resources. The building envelope has a wooden formwork and emphasizes the ecological aspect. The structure is composed of a concrete skeleton. The technical rooms and changing rooms, located at both ends, make it possible to reinforce the stability of the building. The mass of the concrete guarantees the storage of thermal energy and its subsequent release. Its inertia reduces the building's energy consumption, while improving its thermal comfort. The ceilings act as temperature regulators in summer and the floor heating, placed on the surface without additional screed, minimizes heat loss in winter. The façade treatment and insulation meet the criteria of a passive house. It is covered with larch panelling, one of the most resistant woods. The base of the building as well as the lower area of the north façade are covered with a clay plaster that children can play with. Flowers, handprints can indeed decorate a part of the building every new year.
The self-supporting structure of the outer walls consists of 10cm thick plywood panels. These, fixed to the ceiling or mounted from the floor, remain visible inside and reinforce the soothing climate of the building. The air in the rooms is improved by the absorption of moisture or the natural regulation provided by the wood. The insulation of the solid wood exterior wall was completed with straw thermal insulation.
VISION: development of a regional circular economy and creation of a new Luxembourg building tradition with bio-based regional building materials.
Architectural description
The relay house consists of two continuous levels, in which part of the second floor has been designed as a flat roof, opening onto nature and which can be transformed for an afternoon into an"extra classroom outside".
The building, 65m long and 17.5m wide, has a floor area of approximately 2,300m². The corbelled seat on the second level protects the entrance to the building and children from the elements.
Energy consumption
- 55,90 kWhep/m2.an
- 153,20 kWhep/m2.an
Envelope performance
- 0,11 W.m-2.K-1
Systems
- Urban network
- Low temperature floor heating
- Wood boiler
- Urban network
- Wood boiler
- Others
- Natural ventilation
- Nocturnal ventilation
- Solar photovoltaic
Smart Building
GHG emissions
- 14,00 KgCO2/m2/an
Life Cycle Analysis
- Renewable resource.
- Easily accessible.
- 5,000 constructions carried out in France and 500 new constructions per year.
- Almost zero grey energy.
- Certification and acceptance by approved experts.
- Inert, recyclable and compostable waste.
- Easy disassembly at the end of the life cycle.
- Reuse after dismantling the building.
Comfort
Product
Thermal insulation in straw bales
Baustroh GmbH
Benedikt Kaesberg
http://www.baustroh.de/Finishing work / Partitions, insulation
The insulation of the solid wood exterior wall was completed with straw thermal insulation. This sustainable building material, used for centuries, is the centre of CO2-neutral construction and an ecological and economical alternative to traditional fossil insulation materials.
The constructive principle is based on wooden boxes, inside of which the straw is
willing. The energy required for its production is 77 times less than mineral wool and pollutes the environment by about 60 tonnes less CO2 emissions than conventional construction.
The straw bales are naturally incorporated into the façade, retain CO2 more permanently and are 100% biodegradable. Compared to other insulators, straw is fire resistant. Compressed, it has very little oxygen inside, which allows it to carbonize only very slowly, protecting the supporting structure for more than an hour.
Wood also has a high fire resistance. A carbonized layer is created on the surface and slows its progression. The core of the structure thus retains all its strength.
The straw
Current situation :
- Renewable resource.
- Easily accessible.
- 5,000 constructions carried out in France and 500 new constructions per year.
In construction :
- Almost zero grey energy.
- Certification and acceptance by approved experts.
In the circular economy
- Inert, recyclable and compostable waste.
- Easy disassembly at the end of the life cycle.
- Reuse after dismantling the building.
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Construction and exploitation costs
- 5 500 000 €
Urban environment
As part of the new the organization of the existing school has been redesigned to create maximum synergy between the two buildings.
The layout of the premises and The shape of the new construction thus offers a high quality outdoor space.
To create a set the new buildign's orientation and facade have been particularly well cared for.
The line slightly bent of the facade and the location of the relay house at the south-western end of the plot create continuity with the existing building but also protect children from noise pollution from adjacent streets.
The playground has been completely reconsidered in the overall concept to offer children additional spaces, segmented according to ages and conducive to interactions. The natural environment being one of the most favourable, the meadow located on the south-western border of the property has been preserved and decorated with shrubs and fruit trees.
Parking spaces
To the north of the site, parking has been redesigned with the creation of a new"KISS & GO" parking lot and a new parking area for parents.
Building Environmental Quality
- Building flexibility
- indoor air quality and health
- acoustics
- comfort (visual, olfactive, thermal)
- energy efficiency
- renewable energies
- maintenance
- building end of life management
- integration in the land
- building process
- products and materials
Reasons for participating in the competition(s)
Répondant aux normes les plus strictes, ce bâtiment a obtenu la classification énergétique B/B.
Le traitement de la façade et son isolation répondent aux critères d’une maison passive. La maison relais se compose d’une salle de classe pour cycle 1 précoce, et de 3 autres salles de classe de cycle 1. Elle est aussi dotée de cinq salles de fonction libre pour la maison relais, de deux bureaux, de salles annexes et de réunion, d’une salle multifonctionnelle « motricité », d’une cuisine didactique et d’un réfectoire.
Ce complexe a été pensé par toutes les parties prenantes pour être neutre en CO2 grâce à des technologies réduites, et notamment le plus haut niveau d’utilisation de matériaux de construction renouvelables, écologiques et recyclés, comme l’isolation réalisée en paille.
Les installations retenues permettent aux enfants d’apprendre à utiliser des ressources naturelles.
La masse du béton, composant la structure du bâtiment, garantit le stockage de l’énergie thermique pour la restituer ultérieurement et permet également de réduire la consommation d’énergie de celui-ci, tout en améliorant le confort thermique. La production de chaleur dans l’école fondamentale est assurée par un chauffage à copeaux de bois, alors que la nouvelle construction a été reliée au réseau de chauffage urbain. Les plafonds font office de régulateurs de température en été et le chauffage au sol minimise les pertes de chaleur en hiver. Un système central de ventilation a été mis en place pour la salle de motricité, la cuisine et l'espace de restauration. Les salles de classe sont refroidies par ventilation nocturne via des ouvrants motorisés qui s’activent quand les valeurs limites sont atteintes. Le débit pulsé dans la salle de motricité transite entre les différentes salles. C’est pourquoi un groupe spécifique de récupération d’énergie et de refroidissement adiabatique de l’air a été installé.
Une installation photovoltaïque de 30 kWc a été installée en toiture. Le concept d’éclairage full LED minimise pour sa part la consommation d’électricité.
Le bâtiment est équipé de détecteurs de présence qui permettent l’allumage automatique de l’éclairage. L’ajustement de luminosité se fait en fonction de la luminosité extérieure. Cette adaptation se fait en 2 zones : côté façade et côté couloir. Ce choix permet d’avoir le concept technique le plus poussé en termes d’éclairage artificiel.
Une gestion centralisée des stores, par salle et par façade, a été installée. Elle est commandée automatiquement par une station météo située en toiture qui fait partie intégrante du concept énergétique. Un dispositif de vidéo-parlophones, à l’intérieur du bâtiment et dans l’ensemble des salles, a été mis en place ainsi qu’un contrôle d’accès on-line à l’entrée de la maison relais.
Le principe de l’isolation thermique en paille de cette construction hybride béton-bois repose sur des caissons en bois, à l’intérieur desquels la paille est disposée. Par rapport à l’ensemble des isolants, la paille résiste très bien au feu, car elle est compactée et de ce fait ne laisse pas passer d’air. C’est une alternative écologique et économique aux matériaux d’origine fossile.
La maison relais, d’une longueur de 65m et d’une largeur de 17,5m, développe une surface d’environ 2.300 m².La construction autoportante des parois extérieures est constituée de panneaux de contreplaqué d’une épaisseur de 10cm, en Mélèze, un bois des plus résistants.
Le bâtiment est composé de deux niveaux continus, dans lesquels une partie du deuxième étage a été imaginée en toit terrasse, qui offre une cour de récréation pour les enfants. Le socle du bâtiment ainsi que la zone inférieure de la façade nord sont recouverts d’un enduit argileux que les enfants peuvent appréhender de manière ludique.
L’organisation de l’école existante a été pensée afin de créer une synergie entre les deux bâtiments et permet aussi de protéger les enfants des nuisances sonores.