1c01-01 sustainable construction

7/30/2019 1C01-01 Sustainable Construction

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1C1

Design of sustainable construction

Petr Hjek


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2

List of lessons

1) Sustainable construction2) Integrated design process

3) Life Cycle Assessment4) Assessment criteria5) Methods of complex assessment of construction

sustainability

6) Material efficient design principles I7) Material efficient design principles II8) Energy efficient design principles9) Recycling and use of recycled materials

10)Prefabricated and demountable structures11)Sustainable reconstruction and refurbishment12)Examples of sustainable constructions13)Reserve


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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 andstandardisation CEN350, ISO TC59

Objectives

Background and

basic principles

Complexapproach

Criteria ofsustainability

Regional aspects

Internationalcontext

Standardisation


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background

and basic principles


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2000: 6,1 billion

2050: 8,9 bil lion (estimated by UN, 2003)

year

populatio

n

(billion)

Population growthObjectives

Background and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek


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0%

200%

400%

600%

800%

1000%

1200%

1900

1910

1920

1930

1940

1950

1960

1970

1980

1990

2000

2010

2020

2030

2040

2050

produkce oceli

produkce betonu

populace

rok 1950 = 100%

2,4 x

4,4 x

12 xsteel productionconcrete productionpopulation

World production of steel and concreteObjectivesBackground and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek


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Waste generationObjectivesBackground and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek


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Objectives

Background and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek

Energy consumption

Consumption in 40 years 2,7 times higher


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CO2 emissions - GWPObjectivesBackground and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek


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Population growth ...

... growth of demands

Primary materials extraction

Pollution

Waste


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Resource use efficiency growth factorObjectivesBackground and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek

4 10 x

1995 - E. Weizscker, 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 annualworld energyconsumption


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Objectives

Background and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek

Environmental impacts of buildings in

CR and EU

30 - 40 %

energy consumption

CO2 emission production

waste production


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AGENDA 21 on Sustainable ConstructionObjectives

Background and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek

CIB Report No. 237 1999


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Objectives

Background and

basicprinciples

Complexapproach


Regional aspects


Standardisation

Petr Hjek

resources

emissions,waste

biodiversity

costs quality

time

traditional construction

Traditional and sustainable

construction approach

quality of

environment

emissions,

wastebiodiversity

resources

sustainable construction

costs quality

time


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Complex

approach


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Objectives

Background and

basic principles

Complex

approach


Regional aspects


Standardisation

Petr Hjek

Three basic groups of sustainable criteria

Social criteria

Environmental

criteria

Economiccriteria


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Objectives

Background and

basic principles

Complexapproach

Criteria of

sustainability

Regional aspects


Standardisation

Petr Hjek

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 materialsWaste generation

Environmental aspects and criteria

Source depletion and waste generation


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Objectives

Background and

basic principles

Complexapproach

Criteria of

sustainability

Regional aspects


Standardisation

Petr Hjek

Social aspects and criteria

Indoor quality

Accessibility

Safety and security

Social and cultural value

Functionality

ThermalAcoustic, Lighting

Air qualityUse of green in interior

Adaptability

Cultural heritage preservationSatisfaction of inhabitants and users

Safety in building and in surroundings

Security

Accessibility of services

Accessibility of public transportCycling supportNon-barrier access


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Objectives

Background and

basic principles

Complexapproach

Criteria of

sustainability

Regional aspects


Standardisation

Petr Hjek

Economic aspects and criteria

Life cycle cost - LCC

Externalities

Local economy support

Investment construction cost

Operational costDemolition cost

Use of local products

Use of local services

Associated investments and their impacts

Innovations

Economical risksMinimization of regional climatic andgeophysical risks

Operational autonomy


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Regionalaspects


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Objectives

Background and

basic principles

Complexapproach


Regional aspects


Standardisation

Petr Hjek

Regional specifics

Climatic condition

Geomorphological conditions

Material and technology basis

Economical conditions

Population density

Tradition

CultureDifferent construction

approaches


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Mezinrodn

metodika SBTool

International

methodology SBTool

International

context


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Objectives

Background and

basic principles

Complexapproach


Regional aspects

International

context

Standardisation

Petr Hjek

Sustainable Building Alliance

CORECO2 emissionsEnergy

Waste

Water

Air quality

Economy efficiency

Key indicators

Design target scores for Megaple project Otta a Canada


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Objectives

Background and

basic principles

Complexapproach


Regional aspects

International

context

Standardisation

Petr Hjek

Tools for evaluation of

complex building quality

Germany

Czech Republic

Spain

Finsko

SBTool

BREEAM

LEED

CASBEE

HQE

iiSBE international metodology

UK

USA

Japan

Francie

SB Tool PT Portugalsko

Itlie

116Max.potentiallo w-

levelparameters: 118

3Activelow-level

mandatoryparameters:

10

ActiveWeightsWeighted

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

Thenumberofactivelow-levelmandatoryparameterswithascoreof lessthan3is:

Withcurrentcontextandbuildingdata,thenumberofactivelow-levelparametersis:

SiteSelection,ProjectPlanningandDevelopment

EnergyandResourceConsumption

ServiceQ uality

SocialandEconomicaspects

This is aRenovationprojectwitha totalgross areaof7000m2. Ithas anestimatedlifespan of75 years,and contains thefollowing occupancies:ApartmentandRetailandis locatedinOttawa,Canada.The assessmentisvalidfortheDesignPhase.

Assumedlifespanis75years,andmonetaryunitsarein CD

Design target scores for Megaplex project, Ottawa, Canada

Predic ted performance results based oninformation available during Design Phase

Project Information

Design PhaseActive Phase

(set in Region file)

Relative P erformance Results

Amortizationrateforembodiedenergyofexistingmaterialsis setat2%

Toseea fulllist of Issues, Categories andCriteria, gototheIssues worksheet.

Design targetscoresTheprojectcontains20apartmentunits

DesignPhase scoresindicateP otentialPerformanceas predictedbyan assessmentofbuildingfeaturesandplansfor constructionand operationthataredevelopedduringthe

designprocess.

EnvironmentalLoadings

IndoorE nvironmentalQuality

T o ta l w e I ght e d bu i l di ng s c o re

Culturaland PerceptualAspects

0

1

2

3

4

5A

B

C

DE

F

G

Performance Issue Areas

0=AcceptablePractice;3=GoodPractice;5=BestP ractice

Protocollo SBC

SB Tool Verde

SB Tool CZ

PROMISE

DGNB


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Objectives

Background and

basic principles

Complexapproach


Regional aspects

International

context

Standardisation

Petr Hjek

Research in EU

LEnSE (FP6) methodology

PERFECTION (FP7) indoor indicators

SuPer Buildings (FP7) assessment andbenchmark settings

OpenHouse (FP7) implementation ofassessment into construction practice


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Objectives

Background and

basic principles

Complexapproach


Regional aspects


Standardisation

Petr Hjek

Standardisation

Standardisation: CEN/TC 350 a ISO TC 59


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Objectives

Background and

basic principles

Complexapproach


Regional aspects


Standardisation

Petr Hjek

Thank you for your attention

and see you next week

1c01-01 sustainable construction

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