1c1 design of sustainable construction petr hájek

1C1 Design of sustainable construction

Petr Hájek

2

List of lessons

1) Sustainable construction2) Integrated design process3) Life Cycle Assessment 4) Assessment criteria5) Methods of complex assessment of construction

sustainability6) Material efficient design principles I7) Material efficient design principles II8) Energy efficient design principles9) Recycling and use of recycled materials10) Prefabricated and demountable structures11) Sustainable reconstruction and refurbishment12) Examples of sustainable constructions13) Reserve

3

Objectives of the lecture

• Background and basic principles of sustainable construction

• Complex approach – criteria of sustainability: environmental, social and economic aspects

• Regional aspects

• International context – research and standardisation – CEN350, ISO TC59

Objectives

Background and basic principles

Complex approach

Criteria of sustainability

Regional aspects

International context

Standardisation

background background and basic principlesand basic principles

2000: 6,1 billion

2050: 8,9 billion (estimated by UN, 2003)

year

Population growthPopulation growthObjectives

Background and basic

principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

0%

200%

400%

600%

800%

1000%

1200%

19

00

19

10

19

20

19

30

19

40

19

50

19

60

19

70

19

80

19

90

20

00

20

10

20

20

20

30

20

40

20

50

produkce oceli

produkce betonu

populace

rok 1950 = 100%

2,4 x

4,4 x

12 xsteel production

concrete production

population

World production of steel and concreteWorld production of steel and concreteObjectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

Waste generationWaste generation

0%

200%

400%

600%

800%

1000%

1200%

1900

1910

1920

1930

1940

1950

1960

1970

1980

1990

2000

2010

2020

cement production

population

municipal waste generation

year 1950 = 100%

12 x

2,4 x

6 xOECD data

TRENDY RŮSTU MNOŽSTVÍ KOMUNÁLNÍHO ODPADU

Objectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

Objectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

Energy consumptionEnergy consumption

Autor: Frank van Mierlo

TRENDY SVĚTOVÉ SPOTŘEBY ENERGIE

4 x

2,6 xCelkem za 40 let ~ 2,7 x víceConsumption in 40 years – 2,7 times higher

CO2 emissions - GWPCO2 emissions - GWPObjectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

Population growth ...Population growth ...

... growth of demands... growth of demands

Primary materials extractionPrimary materials extraction

PollutionPollution

Waste Waste

Resource use efficiency growth factorResource use efficiency growth factorObjectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

4 – 10 x4 – 10 x

1995 - E. Weizsäcker, A. a H. Lovins

Factor Four - Doubling Wealth, Halving Resource Use

1999 - Schmidt-Bleek

Factor 10 - MIPS concept – material input per unit service

Source: Frank van Mierlo

= Total annual world energy consumption

Objectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

Environmental impacts of buildings in Environmental impacts of buildings in CR and EUCR and EU

30 - 40 %30 - 40 %

energy consumption

CO2 emission production

waste production

AGENDA 21 on Sustainable ConstructionAGENDA 21 on Sustainable ConstructionObjectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

CIB Report No. 237 1999

Objectives


principles

Complex approach


Regional aspects


Standardisation

Petr Hájek

resources

emissions, waste

biodiversity

costs quality

time

traditional constructiontraditional construction

Traditional and sustainable Traditional and sustainable construction approachconstruction approach

quality ofenvironment

soci

al a

nd c

ultu

ral

issu

es

economic

efficiency

emissions, waste

biodiversity

resources

sustainable constructionsustainable construction

costs quality

time

Complex Complex approachapproach

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Three basic groups of sustainable criteriaThree basic groups of sustainable criteria

Social criteria

Environmental criteria

Economic criteria

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Climate changes

Biodiversity

Climatic and geophysical risks

CO2 emission ekvivalent

Air qualitySOx emissionNOx emission

Use of greenEcological quality

Retention land potantial

Primary energy consumptionWater useUse od renewable and recycled materials Waste generation

Environmental aspects and criteriaEnvironmental aspects and criteria

Source depletion and waste generation

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Indoor quality

Accessibility

Safety and security

Social and cultural value

Functionality

ThermalAcoustic, LightingAir qualityUse of green in interior

Adaptability

Cultural heritage preservationSatisfaction of inhabitants and users

Safety in building and in surroundingsSecurity

Accessibility of servicesAccessibility of public transportCycling supportNon-barrier access

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Economic aspects and criteriaEconomic aspects and criteria

Life cycle cost - LCC

Externalities

Local economy support

Investment construction costOperational costDemolition cost

Use of local products Use of local services

Associated investments and their impactsInnovations

Economical risksMinimization of regional climatic and geophysical risksOperational autonomy

Regional Regional aspectsaspects

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Regional specificsRegional specifics

Climatic condition

Geomorphological conditions

Material and technology basis

Economical conditions

Population density

Tradition

Culture

Different construction

approaches

Mezinárodní metodika SBTool

International International methodology SBToolmethodology SBTool

International International contextcontext

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

CORECO2 emissions

Energy

Waste

Water

Air quality

Economy efficiency

Key indicators

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Germany

Czech Republic

Spain

Finsko

SBTool

BREEAM

LEED

CASBEE

HQE

iiSBE – international metodology

UK

USA

Japan

Francie

SB Tool PT Portugalsko

Itálie

116 Max. potential low-level parameters: 118

3Active low-level

mandatory parameters:

10

Active WeightsWeighted

scores

A 8% 3.3

B 23% 2.3

C 27% 3.7

D 18% 3.4

E 16% 2.9

F 5% 2.9

G 3% 4.3

3.1

The number of active low-level mandatory parameters with a score of less than 3 is:

With current context and building data, the number of active low-level parameters is:

Site Selection, Project Planning and Development

Energy and Resource Consumption

Service Quality

Social and Economic aspects

This is a Renovation project with a total gross area of 7000 m2. It has an estimated lifespan of 75 years, and contains the following occupancies: Apartment and Retail and is located in Ottawa, Canada. The assessment is valid for the Design Phase.

Assumed life span is 75 years, and monetary units are in CD

Design target scores for Megaplex project, Ottawa, Canada

Predicted performance results based on information available during Design Phase

Project Information

Design PhaseActive Phase

(set in Region file)

Relative Performance Results

Amortization rate for embodied energy of existing materials is set at 2 %

To see a full list of Issues, Categories and Criteria, go to the Issues worksheet.

Design target scoresThe project contains 20 apartment units

Design Phase scores indicate Potential Performance as predicted by an assessment of building features and plans for construction and operation that are developed during the

design process.

Environmental Loadings

Indoor Environmental Quality

T o t a l w e I g h t e d b u i l d i n g s c o r e

Cultural and Perceptual Aspects

1

0

1

2

3

4

5A

B

C

DE

F

G

Performance Issue Areas

0 = Acceptable Practice; 3 = Good Practice; 5 = Best Practice

Protocollo SBC

SB Tool Verde

SB Tool CZ

PROMISE

DGNB

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

LEnSE (FP6) – methodology

PERFECTION (FP7) – indoor indicators

SuPer Buildings (FP7) – assessment and benchmark settings

OpenHouse (FP7) – implementation of assessment into construction practice

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Standardisation: CEN/TC 350 a ISO TC 59

Objectives


Complex approach


Regional aspects


Standardisation

Petr Hájek

Thank you for your attention and see you next week

1c1 design of sustainable construction petr hájek

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