IBO - Austrian Institute for BUILDING and ECOLOGY
WORKSHOP “ENERGY EFFICIENT BUILDING AND FUTURE CHALLENGES”
ZONE B
Building concepts beyond energy efficiency
Susanne Formanek IBO Austrian Institute for
Building Biology and Construction Ecology
Do not follow meanymore.
I am wrong!
Source: Caroline Thurner
IBO - Austrian Institute for BUILDING and ECOLOGY
IBO
• aim of providing topical information on
• the impact of buildings on human health• well-being (Baubiologie) • on the environment (Bauökologie).
• independent, scientific non-profit institute,
• Providing
• research (on renewable materials,...),• services (measurements, consulting and labellings)• advanced training as well as publications.
the Austrian Institute for BUILDING and ECOLOGY R&D institute, founded in 1980
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Mountain ecosystems are particularly vulnerable to climate change
Continental region: increase in/of
heat extremes, risk of river floods
risk of forest fires, energy demand for coolingDecrease in economic value of forests and summer precipitation
Mountain regions
a shift in vegetation zones and extensive biodiversity loss , Temperature rise larger than European average, Changing precipitation patterns, including less precipitation falling as snow
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Urban Heat Island (UHI) = drastic increase of urban temperature compared to their rural surroundings
REASONA
• Increased and uncontrolled industrialization
• Anthropogenic heat sources
• Decreased evapotranspiration
• High population
• Urban cityscape
• Energy consumption and lifestyle
• Enormous production of energy from sources like industry, vehicles and houses
• Built environment and concrete buildings as building materials are good insulators and can hold more heat
Source: Public health note, http://www.publichealthnotes.com/author/sandesh/
IBO - Austrian Institute for BUILDING and ECOLOGY 6
Average number of summer days with temperature more than 25°C
Source: UHI Strategy Vienna
years 1981-2010 vears 2021 to 2050
IBO - Austrian Institute for BUILDING and ECOLOGY
CLIMATE CHANGE ADAPTATION
Example: Areal Impact, (by Pfoser,
Jakobs AG 2015 and
GRÜNSTATTGRAU 2018, baseline:
MA 48)
Over 30 Wildbee Species on one roof
137l/m2=Bathtub fillingretention
1-10 dB
-75 Air conditioner (3000 W)-Thermal Comfort: -13°C PET + thermal insulation: +10% - surface temperatur: - 20 °- primary energy demand - 50%
850m2 Living Wall= Oxygen for 40 Inhabitants1,7kg/m2/a PM
Economy:+Real Estate Value+Building materials lifespan (10 yearswaterproofing)-Running Cost Heating Cooling- heat transition - 0,19W/m2 ; 25%+ PV efficiency: max 8 %
Health/Living:-Sickdays+ Productivity+ Happiness+ Recovery- Vandalism
RESILIE
NT
CITIES
IBO - Austrian Institute for BUILDING and ECOLOGY
© GrünStattGrau
© TU Berlin
CLIMATE CHANGE ADAPTATION
IBO - Austrian Institute for BUILDING and ECOLOGY
DC Tower 1 © ArchiDaily / Dominik Perrault
CLIMATE CHANGE ADAPTATION - water, radiation, wind !
© MA22, Preiss J.
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Multifunctional building – building stock
90% residential buildings
77%
9%
4%10%
1 & 2 family houses terrace houses
multifamily houses non-residential buildings
57%
19%
24%
own property private rental flats social housings sector
40% of all households live in the rental sector
2.2 million buildings
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THE Austrian model of social housing
• Vienna has a long tradition of socially oriented housing programmes, a tradition that dates to the 1920s.
• 70,000 municipal rented flats were constructed under economically andpolitically difficult conditions for the benefit of the weakest groups of society
• “Wiener Wohnen“ administers approx. 220,000 flats and is thus the biggestlandlord in Austria - non-profit housing developers
• 10,000 flats annually rehabilitated with public funds
• 60% of all Viennese households live in subsidised housing
Source: UNECE Conference
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NATIONAL ENERGY BALANCES Distribution of the national final energy demand per construction period
The national final energy consumption for the sector space heating anddomestic hot water
Source: AEA
IBO - Austrian Institute for BUILDING and ECOLOGY
1.Regulations Building Code OIB 6,
OIL-fired Hearing fortbilden in
Lower Austria, energy pass,
energy efficiency law
3.Strategies
Programmes
Subsidies /
Incencitives, R&D
fundings
2.Funding
s
climate,-energyprogramm (KEP)
waste-reducing construction
methods, new energy R&D
innovation Strategie, Urban Heat
Island Strategy, Open Innovation
4.Benchmark
sAssessment criteria,
Labelling
Beyond
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Minimum energy performance requirements for new residential buildings - The Austrian building code
Source: Harmonisation via Guidelines (6) of the Austrian Institute of Construction Engineering (OIB).
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The Energy Performance of Buildings Directive 2010/31/EU EPBD -Nearly Zero Energy Buildings (NZEB)
The definition of NZEBs for 2020 has been published in our national plan (02/2018), which contains the minimum requirements for overall energy efficiency for for new buildings and major renovations
• Determination of the method for calculating the total energy efficiency of buildings.
• Calculation of the cost-optimal level of minimum requirements to the overall energy efficiency standards
• Documentation: energy certificates, A specific national database, the ‘Gebaude‐ und Wohnungsregister’ (GWR) (under preparation)
https://ec.europa.eu/energy/en/topics/energy-efficiency/buildings
Resource: DIRECTIVE 2010/31/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
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Subsidies / Incencitives, R&D fundings - since 1999 „Haus der ZUKUNFT“
• more than 1 Billion Euro for only this funding prorgamme
• 2700 publications, 432 projects, more than 60% focus on R&D
• 55 Demonstration buildings
• Inno Labs (GrünStattGrau, act4energy, mobility)
• Cheque for renovation
• Housing subsidies by „Länder“
• Contracting models (u.a. BIG)
• 91 Climate and energy model regions in 811 municipalities implement climate protection projects
• New technologies can be used from „IÖB – innovative public procurement“
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The best energy is the one that is not needed at all!
IBO - Austrian Institute for BUILDING and ECOLOGY
pollutant criteria
Products
EPD-Datareference values
Quality assurance
Constructions component examples
evaluation algorithm
Texts for (public) procurement
Evaluated products depending on regional specifications
Comparison of buildings based on real construction products
Ecological performance of buildingsEcological performance of components
Energy parameters and referencevalues can be exported via interfaces
Baubook = indicators for reduction of harmful substances in building materials
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Sustainable buildings = choice of ecological building ecologyLow-pollutant and low-emission products
The right choice of building material is becoming increasingly important!
Since the energy input for the production of a building is about the same as the cost of heating a low-energy house during 50 years.
Avoidance fo emissions to indoor air from building materials
LCA tools
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Platform for green procurement, product decleration LCA indicators in Austria
Platform forgreen procurement
LCA of buildings is an assessment criteriain buildingassessment tools
• TQB• „klima:aktiv
Haus“,• ÖGNI/DGNB
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Harmonised criteria for green public procurement
24
City of ViennaAustrian federation
Harmonised criteria
UsersFurther users/partners
Municipalities of Vorarlberg
IBO - Austrian Institute for BUILDING and ECOLOGY
www.baubook.info
IBO - Austrian Institute for BUILDING and ECOLOGY
LCA-indicators for building element
Elements from: IBO (ed): Details for Passive houses. Springer 2009
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IBO - Austrian Institute for BUILDING and ECOLOGY
LESSONS LEARNT
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DI Susanne FormanekPräsidentinIBO - ÖSTERREICHISCHES INSTITUT FÜR BAUBIOLOGIE UND -ÖKOLOGIEAlserbachstraße 5/8, 1090 WienTel.: +43 1 3192005, Fax: +43 1 3192005-50Mobil.: 06642437420E-Mail: [email protected]: www.ibo.at
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