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SUSTAINABLE CONSTRUCTION ANDTHE ROLE OF WOOD
Dr Yutaka GotoDiv of Building TechnologyDept of Architecture and Civil Engineering
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CONTENTbull Self-introductionbull Wood as a sustainable construction materialbull Environmental performance of wood constructionsbull Sustainability evaluation beyond current practicesbull Wrap-up and outlook
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Self-Introduction
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The sustainable building research groupConstruction materials
Buildings
Building products
Cities
14 nationalities13 disciplines
Our main research interests are related to
1 The ecological and economic life cycle assessment 2 sustainability assessment tools for buildings 3 social-cultural and climate adapted design concepts 4 the refurbishment of the building stock5 dynamic building stock modeling and its visualization
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Yutaka Goto Timber Engineering- wood-based materials- timber constructions
Building Physics- building envelope- whole building simulation- indoor comfort- energy efficiency- heat and moisture simulation
Life Cycle AssessmentWood ScienceForestryArchitectural design
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The sustainable use of wood in the construction sectorCovering the whole value chain by interdisciplinary approachesFocus on material building design building performance and regional conditions
Research Focus
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Wood as a sustainable construction material
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Global importance of the construction industry
GDPJobs Energy CO2
Raw materials
Land harvesting
710
50
30-40
60
Fresh water
17
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Wood as a sustainable construction material
What is the contribution of wood in constructionto a more sustainable society
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Wood as a sustainable construction material
httpwwwaucoeurdelarbrecaenbranching-outteachersmodule3-htmlphp
Trees store carbon
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Wood as a sustainable construction material
60 m3 of timberHow much CO2 is stored
Ca 44 tCO2
170000 km 85 yearsdrive of an average passenger car (United States Environmental Protection Agency)
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Wood as a sustainable construction material
CO2 CO2 CO2 CO2
Wood is a renewable and sustainable resource as long as wood is produced in a sustainable manner
Younger trees store CO2 more effectively than mature trees
Plant grow cut use and plant again
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Wood as a sustainable construction materialHow to use
All wood products store CO2 but the difference of the service makes the different effectiveness for climate mitigation
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Environmental performance of wood constructions
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Evaluation of environmental sustainabiliy
Environmental Global atmosphere resource energy water quality and supply land biodiversity etc
Economic Personal consumption expenditures income inequality cost of consumer durables net capital investment etc
Social quality of life equity diversity social cohesion democracy amp governance etc
Environmental
Economic Social
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Designing constructions
httpwwwplankensteiner-holzbaucom
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Designing constructionsinside
outsideMake-up150 mm concrete220 mm EPS15 mm plaster
Make-up15 mm gypsum plaster240 mm limestone200 mm mineral wool10 mm air115 mm brick
Make-up125 mm gypsum board22 mm OSB 280 mm mineral wool wood20 mm wood fiber board10 mm cement based board
inside inside
outside outside
What about environmental impact
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Life Cycle Assessment (LCA)
Cradle to gate Cradle to grave
Methodolgy to calculate the environmental impact of products or services
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Life Cycle Assessment (LCA)
4 persons 100km 1h
40 persons 100km 2h
400 persons 100km 20min
1 person 100km 30min
Functional Unit
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Life Cycle Assessment (LCA)
Sawn timber Mineral wool
Concrete C3037
limestone
Creating 1kg of material results inhellip
Non-renewable primary energy (Kwh)
Renewable primary energy (KwH)
Eco-Indicator 99 (110 Pt)IPCC 100 (100g CO2eq) Ecological Scarcity (100 Pt)
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Life Cycle Assessment (LCA)Creating 1m3 of material results inhellip
Sawn timber Mineral woolConcrete C3037
limestoneNon-renewable primary energy (Kwh)
Renewable primary energy (KwH)
Eco-Indicator 99 (110 Pt)IPCC 100 (100g CO2eq) Ecological Scarcity (100 Pt)