C3 Design of sustainable construction Petr Hájek Lecture 5, V001, April 09

List of lessons Sustainable construction Integrated design process Life Cycle Assessment Assessment criteria Methods of complex assessment of construction sustainability Material efficient design principles I Material efficient design principles II Energy efficient design principles Recycling and use of recycled materials Prefabricated and demountable structures Sustainable reconstruction and refurbishment Examples of sustainable constructions Reserve Lecture 5, V001, April 09

Objectives of the lecture Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation 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 Lecture 5, V001, April 09

background and basic principles

Population growth population (billion) Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Population growth 2000: 6,1 billion 2050: 8,9 billion (estimated by UN, 2003) year population (billion)

World production of steel and concrete Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek World production of steel and concrete 2,4 x 4,4 x 12 x steel production concrete production population

Waste generation Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Waste generation

Energy consumption Consumption in 40 years – 2,7 times higher Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Energy consumption Consumption in 40 years – 2,7 times higher

CO2 emissions - GWP Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek CO2 emissions - GWP

Primary materials extraction Waste Population growth ... ... growth of demands Pollution Primary materials extraction Waste The accelerated development of technology during last two centuries has been associated with devastation of natural resources, increasing pollution and generation of waste

4 – 10 x Resource use efficiency growth factor Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Resource use efficiency growth factor 1995 - E. Weizsäcker, A. a H. Lovins Factor Four - Doubling Wealth, Halving Resource Use 4 – 10 x 1999 - Schmidt-Bleek Factor 10 - MIPS concept – material input per unit service = Total annual world energy consumption Source: Frank van Mierlo

30 - 40 % Environmental impacts of buildings in CR and EU Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Environmental impacts of buildings in CR and EU energy consumption CO2 emission production waste production 30 - 40 %

AGENDA 21 on Sustainable Construction Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek AGENDA 21 on Sustainable Construction CIB Report No. 237 1999

Traditional and sustainable construction approach Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek resources emissions, waste biodiversity costs quality time traditional construction Traditional and sustainable construction approach quality of environment social and cultural issues economic efficiency sustainable construction

Complex approach

Three basic groups of sustainable criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Three basic groups of sustainable criteria Environmental criteria Social criteria Economic criteria

Environmental aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Environmental aspects and criteria Climate changes CO2 emission ekvivalent Air quality SOx emission NOx emission Biodiversity Use of green Ecological quality Source depletion and waste generation Primary energy consumption Water use Use od renewable and recycled materials Waste generation Climatic and geophysical risks Retention land potantial

Social aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Social aspects and criteria Indoor quality Thermal Acoustic, Lighting Air quality Use of green in interior Accessibility Accessibility of services Accessibility of public transport Cycling support Non-barrier access Safety and security Safety in building and in surroundings Security Social and cultural value Cultural heritage preservation Satisfaction of inhabitants and users Functionality Adaptability

Economic aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Economic aspects and criteria Life cycle cost - LCC Investment construction cost Operational cost Demolition cost Local economy support Use of local products Use of local services Externalities Associated investments and their impacts Innovations Economical risks Minimization of regional climatic and geophysical risks Operational autonomy

Regional aspects

Regional specifics Climatic condition Geomorphological conditions Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Regional specifics Climatic condition Geomorphological conditions Material and technology basis Economical conditions Population density Tradition Culture Different construction approaches

Mezinárodní metodika SBTool International methodology SBTool International context

CORE Social aspects and criteria Sustainable Building Alliance Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Sustainable Building Alliance Key indicators CORE CO2 emissions Energy Waste Water Air quality Economy efficiency

Social aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Tools for evaluation of complex building quality SBTool iiSBE – international metodology BREEAM UK LEED USA CASBEE Japan HQE Francie PROMISE Finsko DGNB Germany Protocollo SBC Itálie SB Tool Verde Spain SB Tool PT Portugalsko SB Tool CZ Czech Republic

Social aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Research in EU LEnSE (FP6) – methodology PERFECTION (FP7) – indoor indicators SuPer Buildings (FP7) – assessment and benchmark settings OpenHouse (FP7) – implementation of assessment into construction practice

Social aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Standardisation Standardisation: CEN/TC 350 a ISO TC 59

Social aspects and criteria Objectives Background and basic principles Complex approach Criteria of sustainability Regional aspects International context Standardisation Petr Hájek Thank you for your attention and see you next week 