House of "Parc National de La Réunion"
- Building Type : Office building < 28m
- Construction Year : 2012
- Delivery year : 2012
- Address 1 - street : PLAINE DES PALMISTES 97431 îLE DE LA RéUNION, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 1 744 m2
- Construction/refurbishment cost : 4 265 126 €
- Number of Work station : 47 Work station
- Cost/m2 : 2445.6 €/m2
Primary energy need
(Calculation method : RTAA DOM 2012 )
The environmental quality to build the House of "Parc National de La Réunion" project at the "Plaine des Palmistes", is based on the HQE framework for non-residential buildings adapted to the island of La Reunion, as well as the PERENE (local toolkit).
The headquarters of the "Parc National de La Réunion" and a showroom open to the public (included on UNESCO's worlds Heritage list) was constructed to illustrate the originality of the activities this park. In a village on the top of the island, marked by modesty scholar of its heritage; built in a vegetable matrix; today certainly deteriorated and victim of the insatiable appetite of invasive species (we could easily add concrete,asphalt and fences ....) the house of "Parc National de La Réunion" represents a free movement of letting pass, live and develop the plant tissue. Here the soil is sacred, magical epidermis and essential to the original biodiversity. Already wounded by human artifice, this regulator of hydrological impacts is preserved to the maximum to meet an essential role: being a Terrestrial epidermis , an interface between lithosphere and atmosphere.
Orientated to the climate clock of rain represented by the waterfall of Biberon, the Park house focuses on the site and deploys landscaped trunks, opening the view to the ramparts. Along this line of sight to the water column of "Biberon's", a simple score line eastward with the personal spaces and in the west the open and panoramic space of reception. The latter, touching the vegetable peak strengthened and revitalized by the project is deployed to the great landscape by protecting views of the "street".
The theatrical staging of landscape is valued and magnified. Teamworkplaces lengthen into three branches, each seeking its position in the light, like sciaphilous (shade-tolerant species) it directs their leaves to seize the brightness offered by the environment. These workplaces, of creation, sharing and cooperation,have a broad quiet central space open to the landscape of the eastern rampart of the Plain. On the national street, their pinions emerge as enigmatic signals embedded in there constituted plant expansion ...Natural stone siding outside to be inhabited by primitive lichens and mosses or other ferns,wood and it dry structures is the main guest of this environmental project. The concrete being exclusive to foundations.
A traumatic point for construction site, is the highway. Road networks become landscape and the building mechanical game storage of CO2. The materials of the architectural project are based in nature: tamarindraw woodshingles, lichen basalt, zinc variable tint, transparent glass ...leaving the interior colors of workplaces resonate freely. The bioclimatic project, besides a strictly limited whirlwind buffer system in the North, only offers an active masss toves system for winter in reception areas, artifices are generated by the envelope itself which is built as a "climate comfort machine ."
But beyond the "physical"comfort, the house of "Parc National de La Réunion" is designed as support inviting creative and involved work; the well-being co-exist with the environment, its anthropogenic part, is the starting point for the park to exalt its missions and invite everyone to respect the biodiversity of La Reunion.
Sustainable development approach of the project ownerAs part of the project to build the House of "Parc National de La Réunion" at the "Plaine des Palmistes", the environmental quality of the project is based on the HQE framework for non-residentiel buildings adapted to the island of Reunion, as well as the PERENE (local toolkit).
Architectural descriptionThe House of "Parc National de La Réunion" is a tool enhancing the work of the park, which is offered with a free and sober architecture inscribed with utmost respect for the original site.
Considering the spirit of the building as to determine a way of being, a simple invitation to position itself vis-à-vis the territory, the project offers an unconstrained philosophy of "ready made" images of architecture, in opposite to the trends of mineralization and "bunkerisation" of the island's territory.
Firstly, the house of "Parc National de La Réunion" determines a landscape of wet matrix and magical high plains, upside parks to cows and lawn trimmers, determining the ways of living coexisting with the environment.
Instead of an architecture for "administration", the House of "Parc National de La Réunion" should be a lively place respectful of the biosphere and what it must be preserved in La Reunion. As such, benchmaks and a free intermingling with the original environment respectful of the Plaine site. Here, the landscape project has the same importance as of the human artifice. The House of "Parc National de La Réunion" is an invitation to go to nature that justifies its function ...
The bioclimatic strategy is remarkably simple, to capture some heat in winter to regulate the temperature and to change the program in summer by protecting the building of sun and by breaking down more if necessary... a passive building, with a little more active people, tolerating some variation, in daily journeys by example. No heating or air conditioning, only a dehumidification when necessary; adapted emissivity walls; an important natural light and managed according to the seasons; a controllable cross ventilation; an energy supply by solar greenhouse and trombe walls limited to the strict minimum.
Building users opinion
22 users surveyed (16 men and 6 women). Viewers rating on the overall design of the building is positive 82% of them (18 people) consider that it is satisfactory or very satisfactory. The answers show that 72% (16 people) of users surveyed believe that the building meets their needs satisfactorily or very satisfactorily. Regarding the image that the building gives to visitors, 77% of respondents consider that it is good or very good.
The positives points of the building according to users are:
- A satisfactory architectural image to many users and external visitors.
- The view offered to occupants of the ramparts and Bebour's forest
- The promotion of interactions and exchanges between the occupants in the building particulary in the central cafeteria.
Negatives that appear most often in comments from users are:
- The lack of one or more covered spaces around the building
- Thermal comfort especially in winter where the temperature is too cold in some areas and where internal conditions vary widely at temporal level (changes during the day according to outside sunlight) or spatially (large gap between the ground floor and floor).
- Noise and poor soundproofing offices and meeting rooms.
- Problems with luminaires equipped with dimming light and presence detection that does not satisfy users who would have preferred manual controls.
- Users are demanding more control over the following parameters: heating (active or passive), light (natural or artificial) and noise.
If you had to do it again?
Dynamic thermal simulations have led to a slight oversizing of controlled mechanical ventilation.
See more details about this projecthttp://iletducentre.fr/projet/maison-du-parc/
Designing a bioclimatic architecture
Designing a bioclimatic architecture
Other consultancy agency
Design office in environmental quality of buildings and landscaping
Type of market
Global performance contract
- 82,00 kWhep/m2.an
- 330,00 kWhep/m2.an
Real final energy consumption
- 0,81 W.m-2.K-1
- Fan coil
- Wood boiler
- Solar Thermal
- No cooling system
- Natural ventilation
- Double flow heat exchanger
- Solar Thermal
- Wood boiler
- 8,80 %
- 4 921,00 m2
- 36,00 %
- 2 194,00
Wood-cement panel Duripanel
Finishing work / Partitions, insulation
Duripanel is a monolithic high-density panel made from wood particles bonded to the cement. Its unique manufacturing process gives it excellent physical characteristics. Duripanel can be used: - flooring - in wall - acoustic lining - ceiling - in development of space ... Advantages: • Non-flammable (classification B-s1, d0 (M1)) from 12mm • High mechanical strength ( shocks, heavy loads) • high acoustic performance • Moisture resistance • A non-polluting manufacturing process • No noxious fumes (formaldehyde) • Respect the quality of indoor air accordance with protocol AFSSET, the emission tests were performed by Eurofins. They demonstrate that Duripanel meets the requirements of the AFSSET. VOC concentration is well below the threshold defined by AFSSET (test report available from the Service Quality and Environment).
The Duripanel wood-cement panel is easy to implement. It is resistant to moisture, has good mechanical strength, reaction to fire and sound insulation. Used both inside and outside (with top coat), the Duripanel panels are intended for the most diverse applications in the field of construction, with excellent performance-price ratio.
WOODEN BEAM LAMELAS
Structural work / Carpentry, cover, titghtness
Laminated wood is an excellent carbon storer as proved its Life Cycle Analysis. It is also an energy-efficient material, which demands few energy for manufacturing and transport. The energy consumed throughout the life of a glulam beam is 72% from renewable sources. This important renewable energy consumption and low consumption of fossil fuels are associated with an important reduction of pollution compared to other building materials. When producing a laminated wood beam, we can consider that 80% of the raw material (sawing) is converted into laminated wood; the remaining 20% are waste ... which in this case are valued energy. So we can say that in the manufacturing process of laminated wood, 100% of the raw material is valued, either material or energy.
Combining progress and nature, laminated wood allows an optimal integration of structures. Urban or rural context, the strength of laminated wood is its aesthetics, coupled with a strong dose of creativity to achieve realizations respectful of their environment, both aesthetically by a lighter footprint.
Compact roof VM ZINC PLUS
Structural work / Carpentry, cover, titghtness
A method of "warm roof" made by the superposition of: • a metal support, of wood or concrete; • a FOAMGLAS® cellular glass insulation panels (T4, S3 or TAPERED) grouted with bitumen and glued to the support; • an attachment interface having galvanized steel plates engraved to FOAMGLAS® and a SBS modified bitumen membrane welded to the FOAMGLAS® and covering the pads; • a cover zinc standing seam (width of single out 430 mm) made using VM ZINC PLUS sheets (polyamide with polyurethane coating 60 J.lm the underside), with interposition of a geotextile between the waterproofing membrane and zinc; the cover fastening lugs are screwed on in the above galvanized steel plates. This system led to the production of non-ventilated warm roofs ensuring compliance of the support element to the local humidity. The FOAMGLAS Thermal insulation systems are made in a respectful manner vis-à-vis the environment (use of recycled materials such as glass). The optimization of production processes and the use of hydropower and wind power have allowed in recent years, a significant improvement in all relevant ecological indicators, particularly in the field of air emissions, greenhouse gas Greenhouse and the consumption of energy and natural resources. The potential lifetime of the insulation use corresponds to that of the building. The FOAMGLAS® is free of toxic environment and habitation.
Good thermal and acoustic performance and a good esthetic. Relatively simple installation.
Construction and exploitation costs
- 438 000 €
- 4 265 126 €
Indoor Air quality
Life Cycle Analysis
Reasons for participating in the competition(s)Réduction de consommation énergétique par stockage inertiel dans les tubes d'eau.
Zonage thermique par fonction, utilisation de matériel à faible consommation (optimisation éclairage, eau, restauration écologique du site, utilisation de solaire passif).
Confort thermique assuré par construction bois à faible rayonnement, solaire passif + VMC double flux + stockage inertiel.
Bâtiment 100% ossature bois.