LA DEMARCHE DEVELOPPEMENT DURABLE DANS LE BATIMENT

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RENOVATION LOURDE Lycées Chevrollier Angers
REVIVAL
ETAT DAVANCEMENT DOPERATION STATE IN APRIL 2006
April 2006
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BEFORE REFURBISHMENT
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A and N NO WORKS
C
NEW BUIDLINGS
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REFURBISHMENT
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K
L
M
J
O
D
H
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E
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G
C
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A
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THEREAFTER REFURBISHMENT DESCRIPTION
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Pulling down

• The existing part with asbestos
• The existing building we keep only the concrete
  structure

Creation of a new building (9000m²)

• Area before refurbishment 37000 m²
• Area after refurbishment 42000 m²
• Erection of precarious buildings before all works
  and pulling down at the end

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Social consideration

• Permitting to share out equitably the general and
  technical education, in order to favour social
  mixity
• Bioclimatic design
• To favour the passive architecture by conceiving
  a building in accordance with the climate

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Insulation with low U-value

• North/East/West façades external insulation
• Treatment of the thermal bridges
• Glazing U-value 1.1
• Aluminium window frame with treatment of the
  thermal bridge U-value
• (Uw lt 1.9 W/m² C)

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Protection against overheating, solar shading,
special glazing

• Reinforcement of inertia with North, West, East
  outside insulation
• South solar shading constituted of two parts one
  horizontal (easy maintenance) and an inclined
  blade parallel to the façade
• Glazing with low solar factors

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Daylight strategy

• Solar shading, completed by mobile transparent
  net curtains
• Opening North façade and creation of North
  daylignt
• Creation of some secondary daylight in the back
  of the classrooms
• Selection of glazing with high daylight factor
  (0.78 or 0.67)
• Colour and reflectance in accordance with the
  daylight strategy

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Artificial lighting

• Artificial lighting under the control of daylight
  sensors and presence
• Advanced artificial lighting with low consumption
  fluorescent lamps

Ventilation

• Natural ventilation glass roof between the new
  building and the main existing building
• Innovative mechanical ventilation by an easy flow
  system inlet controlled by the BEMS

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Boiler

• Important reduction (around 40) of the maximum
  demand of power, and higher modulation of the
  needs
• Replacement of the existing burners by modulated
  burners with low Nox emissions

Photovoltaic

• Photovoltaic panels on the south part of the
  building C (inclination 40)

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BEMS and innovative components

• Advanced BEMS that allows to control the
  ventilation, the artificial lighting, the
  heating, the boilers and the energy consumption
• BEMS used for the monitoring

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Waste management during the building erection or
refurbishment

• Improvement of the treatment of the waste by an
  analysis of the pre-existing components and
  by a selective deconstruction
• Use of building technologies and materials, that
  produce limited waste and dont pollute
• Follow-up of the waste from the production to the
  storage

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Waste management during the life of the building

• Selective collection of the waste
• Information spreading in the school about the
  selective collection

Use of friendly environmental materials

• Use of materials with low VOC emissions, no
  formaldehyde, no solvent, no polluting emissions

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CO2 analysis data gathering

• Data gathering in order to develop the CO2
  building stock budgeting
• CO2 emission due to the pulling down, the waste
  transport, the component transport, and the
  building erection

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Global expertise including investment cost and
maintenance cost

• Determination of the best solution during all the
  design phases to both optimize
• the investment cost, the maintenance cost, the
  energy consumption, the CO2 emission, the
  comfort, the health

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Pay back time
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Pay back time
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Pay back time
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Building C, South façade In function since May
2005
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Atrium, in function since September 2005
1. Air extraction 2. Daylight diffusion by
mirrors 3. Air ventilation by the main entrance
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Detail of the ventilation of the Atrium, South
façade In function since September 2005
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Building G, North façade, Entrance of the Atrium
In function since
September 2005
1. Building H, under refurbishment
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Building H (under refurbishment) Achieved in July
2006
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Building J, West façade (in the foreground) and
Building K (in the background) In function since
2004
1. Building J, external shading components
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Buildings E and F, South Façades Achieved in July
2006
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Building C (South-East corner) and Building E-F
(South façade) Synthesised image
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THANK YOU FOR YOUR ATTENTION