S.winter eco and energy-efficient wood constructions

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

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Klara Zenit in Stockholm, Equator AB

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Klara Zenit in Stockholm, Equator AB

Neue Messe Karlsruhe, Gerber Architekten

Please – don‘t forget!

SMA Repair – Kassel. HHS

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Building in Viiki, Helsinki