Eco- and Energy-efficient
wood constructions
Univ.-Prof. Dr.-Ing. Stefan Winter
FiDiPro Professorship Aalto University
Energy and resource efficiency is the leading condition to reach a real
sustainable economy based on oil, gas and coal independent energy
supply!
Univ.-Prof. Dr.-Ing. Stefan Winter
FiDiPro Professorship Aalto University
What are the possibilities and the responsibilities of
the Building Sector?
Increase energy- and resource-efficiency in the building sector...
Faktor 10
Heat-energy consumption
...by renovation of the existing building stock...
...and new low-energy, passive-house or even Plus-Energy
buildings...
...with proved carbon footprint etc.
WOOD IN CARBON EFFICIENT CONSTRUCTION
Is timber able to help to generate solutions?
Univ.-Prof. Dr.-Ing. Stefan Winter
FiDiPro Professorship Aalto University
+ Sustainable Material + carbon storage + low thermal conductivity + moisture buffering + high heat capacity + excellent weight-to-strength ratio + embedded energy + high recycling potential etc.,
YES !
Univ.-Prof. Dr.-Ing. Stefan Winter
FiDiPro Professorship Aalto University
What do we need to fulfill the eco-efficiency
requirements with timber structures?
Univ.-Prof. Dr.-Ing. Stefan Winter
FiDiPro Professorship Aalto University
+ Well trained designer and practice + Building physics best practice + Prefabrication and Quality Management + Customer oriented offers + Cooperation with concrete industry + Adequate offers from woodworking industry + Research & Development + Political support ....
Some examples:
Dry structures – No mould! The three most important reasons
+ Built-in moisture due to wet building materials and wetting during erection
++ Convection
+++ Driving rain
low-2-no - Diffusion
How to avoid?
Accurate detailing and second defense lines!
No need to „re-invent“
everything again!
FiDiPro Energy Efficient Timber Houses and Areas
Prof. Stefan Winter
Test Houses in Otaniemi
FiDiPro Energy Efficient Timber Houses and Areas
Prof. Stefan Winter
Data acquisition walls
Temperature and absolute
humidity profiles in the North
wall of the gypsum board
test house (mineral wool
insulation; moisture variable
vapour barrier)
Temperature and
relative humidity
profiles in the North
wall of the plywood
and gypsum board
test houses (mineral
wool insulation)
Further objective: demonstrate state of the art
detailing
fassade
Tuulensuojalevy
I-Joist
metal plate
roofing paper window
foil
fassade
metal sill
FiDiPro Energy Efficient Timber Houses and Areas
Prof. Stefan Winter
Trelleborg sealing
Prefabrication, Quality management and third party control!
+ Complete planning before working! + Teamwork of planners – architects, structural engineers, building services + Airtightness check – Blower Door control + Production control, incl. third party control + Fire safe construction control + Quality label – checked building quality + Transparent Life Cycle Assessment + Eco label with focus on energy-, resource- and carbon footprint assessment
Third party control!
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
4-geschossiges Wohngebäude, 2010
Architekten: Schankulla TWPL: bauart
B&O Mitraching
4-geschossiges Wohngebäude, 2010
Architekten: Schankulla TWPL: bauart
B&O Mitraching
4-storey dwelling house, 2010
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
4-storey dwelling house, 2010
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
4-storey dwelling house, 2010
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
Architects: Schankulla Civil Eng.: bauart
Cooperation!
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
10.06.2011
Architects: Schankulla Civil Eng.: bauart
B&O Mitraching
8-storey dwelling house, April 2011 max. 25 kWh/m2a heat energy
31.08.2011
Architects: Schankulla Civil Eng.: bauart
Cooperation
Timber – Concrete hybrids are sometimes an adequate solution
Cooperation
Cooperation
CREE
Life Cycle Tower – Pilot Project
8-storey office, April 2012
Architects: Hermann Kaufmann Civil Eng.: Konrad Merz
Cooperation
CREE
Life Cycle Tower – Pilot Project
8-storey office, April 2012
Architects: Hermann Kaufmann Civil Eng.: Konrad Merz
Cooperation
CREE
Life Cycle Tower – Pilot Project
8-storey office, April 2012
Architects: Hermann Kaufmann Civil Eng.: Konrad Merz
Cooperation
CREE
Life Cycle Tower – Pilot Project
8-storey office, April 2012
Architects: Hermann Kaufmann Civil Eng.: Konrad Merz
And the freedom of design??
Chain of education
Architects and Engineers - University
Architects and Engineers – University of Applied Scince
Technicians, Master Carpenter
Carpenter, Craftsmen
Design,
Details,
Integration,
e.g. Fire
Safety Design,
Details,
fabrication
planning
Fabrication
planning,
work
preparation
Fabrication,
mounting
and fixing
Renovation – Reuse - Densification
Method
‚digital
workflow‘
A new chance for architecture!
Buildings in the building stock
Add space!
43 Klara Zenit in Stockholm, Equator AB
44
Klara Zenit in Stockholm, Equator AB
45
Klara Zenit in Stockholm, Equator AB
Neue Messe Karlsruhe, Gerber Architekten
Please – don‘t forget!
SMA Repair – Kassel. HHS
50
Building in Viiki, Helsinki
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