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LA DEMARCHE DEVELOPPEMENT DURABLE DANS LE BATIMENT

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Title: LA DEMARCHE DEVELOPPEMENT DURABLE DANS LE BATIMENT


1
RENOVATION LOURDE Lycées Chevrollier Angers
REVIVAL
ETAT DAVANCEMENT DOPERATION STATE IN APRIL 2006
April 2006
2
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3
N
BEFORE REFURBISHMENT
4
A and N NO WORKS
C
NEW BUIDLINGS
X
REFURBISHMENT
N
K
L
M
J
O
D
H
I
E
F
G
C
B
A
5
THEREAFTER REFURBISHMENT DESCRIPTION
6
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

7
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

8
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)

9
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

10
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

11
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12
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13
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

14
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)

15
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

16
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

17
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

18
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

19
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

20
Pay back time
21
Pay back time
22
Pay back time
23

24

Building C, South façade In function since May
2005
25

Atrium, in function since September 2005
1. Air extraction 2. Daylight diffusion by
mirrors 3. Air ventilation by the main entrance
26

Detail of the ventilation of the Atrium, South
façade In function since September 2005
27

Building G, North façade, Entrance of the Atrium
In function since
September 2005
1. Building H, under refurbishment
28

Building H (under refurbishment) Achieved in July
2006
29

Building J, West façade (in the foreground) and
Building K (in the background) In function since
2004
1. Building J, external shading components
30

Buildings E and F, South Façades Achieved in July
2006
31

Building C (South-East corner) and Building E-F
(South façade) Synthesised image
32
THANK YOU FOR YOUR ATTENTION
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