1c01-01 sustainable construction
TRANSCRIPT
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1C1
Design of sustainable construction
Petr Hjek
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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
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
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Waste generationObjectivesBackground and
basicprinciples
Complexapproach
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
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Objectives
Background and
basicprinciples
Complexapproach
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
Energy consumption
Consumption in 40 years 2,7 times higher
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CO2 emissions - GWPObjectivesBackground and
basicprinciples
Complexapproach
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
CIB Report No. 237 1999
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Objectives
Background and
basicprinciples
Complexapproach
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Internationalcontext
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
Internationalcontext
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
Internationalcontext
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
Criteria ofsustainability
Regional aspects
Internationalcontext
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
Criteria ofsustainability
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
Criteria ofsustainability
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
Criteria ofsustainability
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
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
Standardisation
Standardisation: CEN/TC 350 a ISO TC 59
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Objectives
Background and
basic principles
Complexapproach
Criteria ofsustainability
Regional aspects
Internationalcontext
Standardisation
Petr Hjek
Thank you for your attention
and see you next week