26 November 2013 – Krakow, Poland Giorgia Rambelli, …iclei.org 26 November 2013 – Krakow, ......

The research leading to these results has received funding from the European Community’s

Seventh Framework Programme (FP7/2007-2013) under grant agreement n°260162

Giorgia Rambelli, ICLEI [email protected]

26 November 2013 – Krakow, Poland

In the next 15 minutes…

� 3ENCULT

� Why preserving cultural heritage?

� Why energy efficiency?

� Why should Local� Why should Local

Governments engage?

� How?

� Be inspired

� Opportunities for local

governments

2

Introducing ICLEI (i)

•• International network International network that advances local sustainability.

Established in 1990 in New York by cities.

• Members: 1,220+ cities, towns, counties and their associations

from 70 countries – representing around 600 million peoplerepresenting around 600 million people.

•• ICLEI EuropeICLEI Europe: regional office based in Freiburg, dealing with 40+

Focus on local sustainable development

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ICLEI EuropeICLEI Europe: regional office based in Freiburg, dealing with 40+

countries – projects, campaigns, advocacy.

•• BrusselsBrussels officeoffice acts as European liaison.

• ICLEI Europe is financedfinanced out of membership fees(8%) / 3rd party

funding (92%) of projects and services

•• Covenant of Mayors Supporter Covenant of Mayors Supporter – ICLEI Europe is a unique European

network as it is linked to global network that addresses global

standards, develops protocols and tools, offers advice, and

conducts advocacy at different levels.

ICLEI Europe isproud to be a CovenantSupporter

ICLEI Members include cities, towns, counties, metropolitan areas and States

• 1185 Full Members in 73 countries across all continents.

• 43 Associate Members, in 20 countries worldwide.

•

Introducing ICLEI (ii)

• 532 Members have a population larger than 100,000.

• Largest Member: State of São Paulo, Brazil, 41.4 mil. inhabitants.

• Smallest municipality: Vernon, California, USA, 90 inhabitants.

• ICLEI’s Members represent over 570million people.

Source: ICLEI Database, April 2011

State of São Paulo41.4 mil.

Vernon90

Introducing ICLEI (iii)

Involving local governments through:

• Advocacy on behalf of local governments (topics incl.

biodiversity, climate, sustainable development).

• Representation of our members & campaign

participants.

Global to local, local to global

participants.

• Supporting global and European processes that address

commitment, action and reporting, e.g. : ICLEI acts as

the Local Government and Municipal Authorities (LGMA)

Focal Point at the UNFCCC. ICLEI Europe is a Covenant of

Mayors Supporter

• Developing standards & protocols relevant to local

communities (e.g. Global Protocol for Community-scale

GHG Emissions, developed by ICLEI, C40, WRI).

• Offering tools, guidance, & training to municipalities

and their partners.

Urban energy use impacts on climate change

� Cities contribute to 67% of world energy demand

- expected to increase to 75% by 2030

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Buildings in Europe

•Buildings consume about 40% of total

energy requirements in Europe.

•In the context of all end-use sectors,

buildings represent the largest sector,

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Final energy consuption by sectors in EU – Source: DG ENER 2009

buildings represent the largest sector,

followed by transport.

Bologna

Urban Building Regulation Urban Building Regulation distinguishes buildings of � historic-architectural value� modern architectural value� historical documentary value � modern documentary value

3616 buildings in city centre� 60% before 1919� 80% before 1945

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Denmark

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� 9,000 buildings in Denmark are listed(as the best or most characteristic of their type and period)

� 300,000 buildings have been assessed to be worthy of preservation.

� SAVE project: documentation of buildings built before 1940

Historic buildings

… are the trademark of numerous European cities… are a living symbol of Europe’s rich cultural heritage & diversity… reflect the society's identity and need to be protected

… show a high level of energy inefficiencycontribute with considerable CO emissions to climate change… contribute with considerable CO2 emissions to climate change

… do not always offer “comfort” – to people as well as to artworks

High reduction in energy demand is achievable, also in historicbuildings, respecting their heritage value, if a multi-disciplinaryapproach guarantees the implementation of high qualityinterventions, specifically targeted and adapted to the specific case.

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MultidisciplinaryExchange

ConservatorsOwners &

users

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Technical

Experts

Local

authorities

Urban

planners

MultidisciplinaryExchange

… and in Local Case

Within the project team …

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… and in Local Case

Study teams

Holistic Approach

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Research & development

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Case studiesOverview

� 8 case studies� Waaghaus,

Bozen/Italy

� Palazzo d’Accurso, Bologna/Italy

� Palazzina della Viola, Bologna/ItalyBologna/Italy

� Arsenal, Kopenhagen/Denmark

� Höttinger School, Innsbruck/ Austria

� Speicherstadt,Potsdam/Germany

� University building,Bejar-Salamanca/Spain

� Strickbau,Appenzell/Switzerland

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September 20133ENCULT study tour - Bozen & Innsbruck - Alexandra Troi17

Visualisation – saving potential and conservation compatibility

Energy saving potential Conservation compatibility

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Copenhagen experience:shared choices of theretrofitting solutions

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“Raumbuch” integrated with energy issues

� Architects, conservators and engineers

� “move” through the building on different levels of detail

� information for constructive discussion at their hands.

� Collect and visualize in a structured way any information needed for

the diagnosis (descriptions, plans, photographs, drawings of details, results of the diagnosis (descriptions, plans, photographs, drawings of details, results of

non or minor destructive testing, monitoring data as well as calculations and

models).

September 2013 3ENCULT study tour - Bozen & Innsbruck - Alexandra Troi20

Windows in the building stock …

… are usually

� not thermally insulating� not thermally insulating

� not airtight

e.g. CS1 Waaghaus / Bozen:� 33 kWh/m²

= 11% of total transmission losses

e.g. CS1 Waaghaus / Bozen:� ~40 kWh/m²

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What to do?

� original windows with heritage

value

� restoration of the existing window

� if original windows have already

been replaced – as e.g. in

3ENCULT CS1

� new energy efficient and

aesthetically fitting window

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This was the challenge for …

3ENCULT Partner

Menuiserier Andre with their

development expert Franz Freundorferdevelopment expert Franz Freundorfer

… in close collaboration with the consortium!

Workshop in Bozen

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… start of simulation with the profile of a historic window

3ENCULT study tour - Bozen & Innsbruck - Alexandra Troi26

… first variant with thermal thin window glass

3ENCULT study tour - Bozen & Innsbruck - Alexandra Troi

Heat flow = 27,9970 W

Uf = 1,234 W/(m²K)

PsiSpacer = 0,0493 W/(mK)

Uw= 2,266 W/(m²K)

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… second variant with Passive House Quality

3ENCULT study tour - Bozen & Innsbruck - Alexandra Troi


Uf = 1,234 W/(m²K)


Uw= 2,266 W/(m²K)


Uf = 1,009 W/(m²K)


Uw= 1,167 W/(m²K)

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prototype for CS1, the Weigh House

UfUfUfUf (lateral(lateral(lateral(lateral andandandand above)above)above)above)=0,844W/m²K

DivisionDivisionDivisionDivision ofofofof functionsfunctionsfunctionsfunctions:::: two sashes:

inner layer: energy efficiency - outer layer: aesthetic

UfUfUfUf (below)(below)(below)(below)=0,863W/m²K

UgUgUgUg ==== 0,49 W/m²K

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Project coordinator EURAC

Alexandra Troi, [email protected]

2nd prototype

Using thin glass� 2mm!

� 2+8+2+8+2= 22 mm

� 4+12+4= 20 mm


Uf = 1,00 W/(m²K)

PsiSpacer = 0,023 W/(mK)= 20 mm

Uw= 0,7220 W/(m²K)

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Höttinger School Innsbruck / Austria

1929-29131, Franz Baumann & Theodor Prachensky

Typical for a school of early modernism

In 3ENCULT:

Universität Innsbruck, Architekt Gerald Gaigg

September 2013 3ENCULT study tour - Bozen & Innsbruck - Alexandra Troi32

Fresh air demand …

… can not be

guaranteed with

window ventilation

between one lesson

and the otherand the other

� Windows are

opened also during

lessons

� heating demand

� comfort

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… but which system?

� Central?

� standard with heat exchanger in cellar

� horizontal & vertical ducting

� holes in ceiling

� vertical ducting

☺ no horizontal ducting in the corridor

� more holes in the ceilings

� Decentralised?

� one ventilation system per class room

☺ less ducts

� two holes in the facade per room …

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�To be continued…

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See the potential

� Many historic buildings are owned/ responsability

of the city

� They are affected by climate change

� They can contribute to you sustainable energy� They can contribute to you sustainable energy

action plan

� They are beacons: they can have a positive

inpact socially and economically

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Scrovegni’s Chapel -Padua

� Giotto

� Beginning XIV century

Adaptation plan – including

23/04/2013 3ENCULT – Workshop 38

Adaptation plan – includingcultural heritage

The OSRAM building: a climate friendly tale

COP 2009

first building inCopenhagen to be built with groundbreaking

Diagonal windowsThe Haraldsgadeneighbourhood was built from theend of the 1800s, and slightly

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HaraldsgadeIntegrated Urban Renewal Scheme

Søren Madsen - 1931

Lightbulb factory

be built with blasted concrete

architecture

Creativity

end of the 1800s, and slightly over half of the area’sbuildings are from 1920-1939

Change in inhabitants –30% minorities


Partnership withprivate

Connection to local district heating system.

heat pump was also installed. In

the courtyard in the

In the new OsramBuilding, the renovations

23/04/2013 3ENCULT – Workshop 40 Insulation

the courtyard in the middle of the block, a

mirrordam and a green wall

covered in plants using rainwater from the roof

Building, the renovationshave cut more than 60% of the building’senergy consumption

In line withCopenhagen climate targets!


Meeting center


Gardening

Integration

Cultural center

Appenzell: new jobs in an old business

Old Strickbau-building in Appenzell/Switzerland (17th century).


Appenzell/Switzerland (17th century). “Strickbau” buildings are prevalent in

most alpine regions and consist of layered wooden beams, connected at the corners for stability and typically

extending somewhat from the core block.

Involving LGs: What do we offer?

� Sharing information, offering guidance and interaction opportunities

� Guidance – to help local decision-makers better understand

better options, 4 different guidelines addressing:

▪ Technical solutions and innovation (“guidance for non-experts”).

▪ Using case study experiences, recommend replication in other urban

contexts (“what can you do as a minimum”)contexts (“what can you do as a minimum”)

▪ Integration of historic buildings into urban / building / energy policy,

planning and regulation.

▪ Recommendations for generic replicable factors as municipal

sustainability indicators (e.g. in Aalborg Commitments or Reference

Framework for Sustainable Cities). JOIN THE WORKING GROP!

� Last worksop – March 2014!

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Interested in linking? Sharing approaches? Obtaningguidance?

Contact us:

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Contact us:

Giorgia Rambelli

ICLEI Europe

Tel.: +49-761 / 3 68 92 0

E-Mail: [email protected]

Website : www.3encult.eu

26 November 2013 – Krakow, Poland Giorgia Rambelli, …iclei.org 26 November 2013 – Krakow, ......

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Transcript of 26 November 2013 – Krakow, Poland Giorgia Rambelli, …iclei.org 26 November 2013 – Krakow, ......