Journée de conférences

Une organisation du Laboratoire de Génie Chimique (ULg), parrainée par le pôle de compétitivité Greenwin

Regards croisés sur l'intérêt et les apports de la démarche ACV dans le domaine de la construction

Avec le soutien de :

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1

‘L’analyse du cycle de vie du bâtiment’

- une approche incontournable -

Philippe Callewaert

Producteurs des Matériaux de Construction (PMC - BMP)

22/03/2012

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2

1.Context

2.EPD/LCA – products & buildings

3.Building LCA, how to go forward in Belgium ?

22/03/2013

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3

“milieuvriendelijk beton”

“PVC: 100 % recycleerbaar en milieuvriendelijk”

“Aluminium is milieuvriendelijk “

“creëert gezond binnenklimaat, milieuvriendelijk”

“zeer milieuvriendelijke dakpan”

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Initiatives from

branches

e.g. FIV, PVC,

….

22/03/2013

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5

Evaluation at building level Construction products

=

Intermediate products

Construction products

≠

Finished products

Product performance only assessed at the building level

22/03/2013

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6

Why component level is misleading ?

Can only be assessed at the building level

Example : 1m² external wall with fixed U value and external finishing

Different

impacts

22/03/2013

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Life cycle assessment building level

More impacts

- Material production

Less impacts

- Building use: energy, water use, maintenance, …

More thermal

mass ?

Simple vs.

triple glazing ?

More

insulation ?

Can only be assessed on the whole life cycle,

the material production can not be assessed separately

More

systems ?

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Materials

for sustainable construction

Technical performance

Functional performance

Environmental

performance

Economic

performance

Social

performance

at building

level

on the whole

life cycle

multi-criteria

based on

scientific data

22/03/2013

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9

EN 15643-1 Sustainability

Assessment of Buildings –

General Framework

Product

level

Building

level

Frame-

work

level

Assessment of Social

Performance

EN 15643-2 Framework for

Environmental Performance

EN 15643-4 Framework for

Economic Performance

CEN/TR 15941 Generic

Data

EN 15978 - Assessment of

Environmental Performance

Assessment of Economic

Performance

EN 15643-3 Framework for

Social Performance

EN 15804 – Core PCR for

Environmental Product

Declarations

EN 15942 – Communication

Format

CEN TC 350's European standards

in development

EPDs from construction materials and products

at building

level

on the whole

life cycle

multi-criteria

based on

scientific data

22/03/2013

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10

B1 Use; installed product

B3 Maintenance

B4 Repair

B5 Replacement

B6 Refurbishment

B2 Operational Energy Use

B2.1 Operational Energy Use - heating

B2.2 Operational Energy Use - cooling

B2.3 Operational Energy Use - ventilation

B2.4 Operational Energy Use - hot water

B2.5 Operational Energy Use - lighting

B2.6 Operational Energy Use - building automation and control

Use stageA

4 tra

nsport

A5 o

n s

ite p

rocesses

Construction

Process stage

A3 m

anufa

ctu

ring

A2 tra

nsport

A1 r

aw

mate

rial supply

Product stage

C3 r

ecyclin

g / r

e-u

se

End of Life stage

C1 d

econstr

uction

C2 tra

nsport

C4 D

isposal

Building life cycle stages

EPBD

energy use;

Environmental impact

*

Design life building

Water use

Cradle to Gate

products/process

Transport &

Construction

process

USE

OPERATIONAL USE

END of LIFE

process

I II III IV

22/03/2013

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Building life cycle information in CEN TC350

A 1-3 : product

stage 1. Raw material supply

2. Transport of raw

materials

3. Manufacturing

A 4-5:

construction

process 1. Transport of

materials

2. Construciton

installation

process

B : Use stage 1. Use

2. Maintenance

3. Repair

4. Replacements

5. Refurbishment

6. Energy use

7. Water use

C : End of life 1. De-construction /

demolition

2. Transport

3. Waste processing

4. Disposal

D : Benefits and

loads beyond the

system boundary Reuse-

Recovery-

Recycling-

potential

Modular information for each life cycle stage :

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Building life cycle information :

how could it be implemented ?

DESIGN & STUDY

• Data from structural, energetic, … simulations

Plans, measurements

• Structure

• Internal walls

• Systems…

Calculation tool

• Input from EPD database

• Scenarios

Results assessment

• Interpretation

• Benchmark

22/03/2013

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22/03/2012

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PMC-BMP d-base of EPDs

22/03/2012

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Building life cycle assessment : how to go forward in

Belgium?

• To be done by producers : LCA based on EN15804

• Set-up d-Base in collaboration with SPF/FOD & others

Product database (EPD)

• EN 15978

• Scenarios for Belgian market to be validated by stakeholders group

Building calculation rules and scenarios

• Linked with d-Bases

• Compatible with design tools & software Building calculation

tool

• Benchmark for each indicator

• Thresholds and scaling system to be integrated

Rating system

22/03/2013

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FEDICER

Producteurs de

Fibre-ciment

FBB 22/03/201