Transcript Historic buildings

Project coordinator EURAC
Alexandra Troi, [email protected]
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
Historic buildings
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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 inefficiency
contribute with considerable CO2 emissions to climate change
do not always offer “comfort” – to people as well as to artworks
considerable related heating costs may lead to fuel poverty
not well maintained areas might lead to depopulation
Factor 4 to 10 of reduction in energy demand is achievable, also
in historic buildings, respecting their heritage value, if a multidisciplinary approach guarantees the implementation of high quality
interventions, specifically targeted and adapted to the specific case.
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Bologna
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
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dwellings %
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120 million
55 million
dwellings n°
65 million
55 million
25 million
30 million
< 1945
12.1%
14.3%
26.4%
1919-1945
< 1919
Impact
people
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240 Mt CO2
180Mt
CO2
Multidisciplinary
Exchange
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Holistic Approach
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Research &
development
CONSERVATION
structural
health
living city
centres
WIN
WIN
July 2013
ENERGY EFFICIENCY
higher surface
temperatures
WIN
better air quality
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resource
efficiency
climate change
mitigation
less draft
survive if maintained
as living spaces
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COMFORT
social return of
investment
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if original windows have already been
replaced – as e.g. in 3ENCULT CS1
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new energy efficient and aesthetically
fitting window
Public Weigh House
Case Study Bozen/Bolzano
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phA
advanced
component
phB
basic
component
phC
certifiable
component
not suitable
for Passive
Houses
 conservation
 comfort
 energy efficiency
WIN WIN WIN
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“I do have overall a positive impression as
regards frame & sash bar dimension as
well as subdivision & proportions.
The optic of the outer glasing seems to me
exagerated, both the too irregular reflection
from outside, and distortion from inside.
And I ask whether a 3-pane glasing for
Bolzano climate is really needed.
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Höttinger School
Case Study Innsbruck
 Need for ventilation
 low impact solution?
 use this potential of the building!
 fresh air reservoir in the corridors
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Active Overflow
systems
 conservation
 comfort
 energy efficiency
WIN WIN WIN
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 conservation
 comfort
 energy efficiency
WIN WIN WIN
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 check 3ENCULT website
 join BUILD UP community
Project running until March 2014. Results
to be available within the next months
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Copenhagen experience:
shared choices of the
retrofitting solutions
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Study in Sachsen
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… from the specific case to …
ICLEI “translates” findings
into an e-guide for local
governments
ICLEI supports integration
in urban planning and
climate action plans
TNO addresses issues
related to EPBD and related
CEN standards
EURAC keeps links with
CEN TC Cultural Heritage
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Involving local
governments (LGs): Why?
Historic building renovation:
a strategic and practical step
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Communities between past and future – valuable cultural heritage, city identity,
tourism value: protecting building heritage goes hand-in-hand with sustainable
energy approaches.
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Climate change mitigation needed: Through strategic thinking, comprehensive
programmes, action planning and implementation - reduce energy demand in
buildings and switch to safe, secure renewable energy solutions.
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Adaptation to climate change: Temperature increase, intensified rainfall - your
buildings need protection against impacts, your costs for energy need to be
reasonable (energy security).
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Political commitment: Council has to take leadership – commit,
regulate, monitor, protect. The municipality technical staff should plan,
act, monitor, valuate, and report to Council.
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Involving LGs:
What do we offer?
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Addressing local governments: sharing information, offering guidance
and interaction opportunities
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Guidance – to help local decision-makers better understand better
options, 4 different guidelines are under, 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”)
▪ 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).
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Involving LGs:
What do we offer?
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www.effesus.eu
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EPBD: global content
Framework existing buildings:
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Major renovation  minimum
energy performance requirements:
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Building envelope, if retrofitted
 Building systems, when installed / replaced / upgraded
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Energy performance certificate:
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Buildings, when constructed / sold / rented
 Buildings, if public and > 500m2
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Large heating and air-conditioning systems:
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Regular inspection
EUSEW:
Cultural Heritage and Energy
Efficiency
– 28
June 2013,
Brussels,Troi
Belgium
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final
conference
- Alexandra
EPBD: implementation
for historic buildings
Mandatory for historic buildings:
 Large heating and air-conditioning systems:
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regular inspection
Major renovation:
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Minimum system requirements for new, replaced or upgraded
technical building systems (heating, cooling, ventilation, domestic
hot water)
Exemption for historic buildings:
 Major renovation:
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Minimum requirement for building envelope, if retrofitted
Energy performance certificate
EUSEW:
Cultural Heritage and Energy
Efficiency
– 28
June 2013,
Brussels,Troi
Belgium
26
July 2013
GovernEE
final
conference
- Alexandra
Possible requirements
for historic buildings
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Not necessarily certain minimum energy requirements
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The obligation to do inspections on certain aspects of
the building
The obligation to make/display a certificate with an
energy label
The obligation to consider the technical,
environmental and economic feasibility of certain
measures via e.g. an analysis
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 Combined with impact analysis on cultural heritage value?
EUSEW:
Cultural Heritage and Energy
Efficiency
– 28
June 2013,
Brussels,Troi
Belgium
27
July 2013
GovernEE
final
conference
- Alexandra
Judging the outcome
It’s not necessarily about reaching a certain
ABSOLUTE minimum energy requirement (e.g. in
MJ/m2 or CO2-emission/m2)
 Should we judge/rate a historic building on an
ABSOLUTE energy performance level?
 Is it possible instead to focus on: what energy
performance level do we reach given the possibilities?
 So:
 Not a focus on maximizing energy savings
 But a focus on optimizing energy savings
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EUSEW:
Cultural Heritage and Energy
Efficiency
– 28
June 2013,
Brussels,Troi
Belgium
28
July 2013
GovernEE
final
conference
- Alexandra
Case studies
Overview
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8 case studies
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Waaghaus,
Bozen/Italy
Palazzo d’Accurso,
Bologna/Italy
Palazzina della Viola,
Bologna/Italy
Arsenal,
Kopenhagen/Denmark
Höttinger School,
Innsbruck/ Austria
Speicherstadt,
Potsdam/Germany
University building,
Bejar-Salamanca/Spain
Strickbau,
Appenzell/Switzerland
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Keep updated!
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Website (www.3encult.eu)
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Information on project
Description of Case Studies
All public deliverables
Newsletter (subscription at
www.3encult.eu)
FAQ platform
Workshops for local governments
Study tours to case studies
Handbook
Conferences, Publications, University & Professional training,
Trade fairs, Final Workshop, etc.
Please, for further information to contact the coordinator:
Alexandra Troi ([email protected]), EURAC research, Italy
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Keep updated!

International Workshop
from 16th to 18th September 2013
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Study Tour to CS1 & CS2
on 19th September 2013
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2 workshops for local
governments organised by ICLEI
held in Bologna and Brussels
2 more workshops organised in
new member states upcoming
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 sign up for our newsletter!
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Thank you for your attention!
Acknowledgement
This work was financially supported by the EU FP7 program (GA n. 260162).
The authors wish to express their gratitude for the financial support
[email protected]