Den Integrerede Renovering Proces (IRP) Et supportværktøj mod bæredygtige hjem

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1 Den Integrerede Renovering Proces (IRP) Et supportværktøj mod bæredygtige hjem Strategisk Energiplanlægning 2.0: Omstilling af energien i områder uden kollektiv energiforsyning 27 november 2014 Nicolas Galiotto Bæredygtighedskonsulent, ph.d. Årstiderne Arkitekter 1

2 Introduction 2

3 Final energy use 3

4 Danish building regulations & energy requirements -50% -42% -19% -25% -42% -46% 4

5 Energy renovation 5

6 Energy renovation Focus on energy and economy (quantitative values) - Improve energy performance of the building - Economically interesting Qualitative aspects are often seen as secondary benefits 6

7 Reasons for completing home renovation Source: Adjei

8 Potential in the energy renovation sector In 2010, we had in the European Union: < 1% of the building stock renovated yearly ~95% were minor or conventional energy renovations ~5% were deep energy renovations Until 2050, in order to comply with the EU goals, we need: ~2,5% of the building stock renovated yearly ~90% of deep to nearly zero energy renovations ~10% of minor or conventional energy renovations 8

9 Barriers to energy renovation Politico-economic barriers Technical barriers Behavioural barriers Politico-economic barriers are being addressed by policy makers and market developers. Most technical barriers are being addressed by the building industry. Behavioural barriers directly impact building owners, occupants and professionals. 9

10 Examples of behavioural barriers Limited knowledge Lack of interest Lack of guidance Lack of confidence Lack of social and emotional understanding 10

11 Hypotheses Could a more holistic methodology be the key in overcoming behavioural barriers to high performance home renovation? Could we integrate the home occupants in the centre of the decision-making process using an adapted language? 11

12 Overcoming barriers to energy renovation Need for contributions from all parties Need for interdisciplinary collaborations 12

13 The concept of sustainable renovation More holistic approach Better integrate building occupants One-step and stepwise renovation More focus on immaterial aspects of sustainability 13

14 Decision-making problem What is the best renovation scenario? Non-expert decision makers Homeowners very involved Homeowners very emotional Small project with few resources 14

15 Decision support methods applicable to sustainable renovation SEMI-STRUCTURED PROBLEM Selection of the best renovation scenario CRITERIA Multiple conflicting Both qualitative and quantitative Candidate to be solved by multi-criteria decision-making methods (MCDM) 15

16 What are multi-criteria decision-making methods used for? Purpose: Identify the most appropriate solution out of a set of alternatives Specificity: Alternatives are characterised by multiple and possibly conflicting attributes. Categories: Support or optimisation Organise information for decision situations Add structure to decisions Interact between decision makers Expand the decision maker's horizons 16

17 The Integrated Renovation Process (IRP) 17

18 The Integrated Renovation Process Decision support tool Adapted to non-expert decision makers User customised Makes benefits from quality renovations clear and assessable Encourage communication between project stakeholders Encourage knowledge discovering 18

19 The Integrated Renovation Process Iterative process in 3 phases: Study of homeowners values and house profiling Generation and evaluation of renovation strategies Synthesis & selection of the best strategy 19

20 Study of homeowners values and house profiling Semi-open questions Functionality Aesthetics Usability Safety Economy Indoor environment Artistic values Degradation & obsolescence Etc. 20

21 The Integrated Renovation Process 21

22 Home before renovation 22

23 Home coaching House (building) Homeowners (occupants) 23

24 The Integrated Renovation Process Evaluation scales A Evaluator Building expert Homeowners Type scale Qualitative Quantitative Qualitative Quantitative Favourable Excellent Expert data 1 Very satisfied Much better than threshold 1 B Good Expert data 2 Quite satisfied Lightly better than threshold 1 C Better than neutral but not good Expert data 3 Satisfied if minor changes Lightly worse than threshold 1 D Neutral Neutral Expert data 4 Neutral Neutral E F Unfavourable Worse than neutral but not poor Expert data 5 Not neutral - not dissatisfied Poor Expert data 6 Quite dissatisfied G Very poor Expert data 7 Very dissatisfied Lightly better than threshold 2 Lightly worse than threshold 2 Much worse than threshold 2 24

25 Expert evaluation of the house in existing conditions 25

26 Expert evaluation of the house in existing conditions 26

27 Expert evaluation of the house in existing conditions 27

28 Homeowners-expert evaluation of the house in existing conditions What is for you thermal comfort? Have you ever had cold feet? What is your experience with the temperature in the house? How do you feel? Etc. 28

29 Homeowners-expert evaluation of the house in existing conditions 29

30 Homeowners-expert evaluation of the house in existing conditions 30

31 Homeowners-expert evaluation of the house in existing conditions 31

32 Homeowners-expert evaluation of the house in existing conditions 32

strategy 2, strategy 3, etc. Source: www.

33 What are the options to improve the house? Home in existing conditions, strategy 1, strategy 2, strategy 3, etc. Source:

34 Evaluation of prospective buildings 34

35 Evaluation of prospective buildings 35

36 Evaluation of prospective buildings 36

37 Evaluation of prospective buildings Open dialogue What type of spatial configurations can I get in Scenario 2? Could we insert the demolition of the inner walls in Scenario 1? Can we get this modern look in Scenario 2? What would be the cost of integrating the finishing materials of Scenario 3 in Scenario 2? 37

38 Evaluation of prospective buildings 38

39 Evaluations for all criteria (case study 1) Technical aspects CASE STUDY No. 1 IEQ Immaterial values Economics Plus-value Energy costs Budget Emotional Preservation Modernisation Aesthetic Functions Healthy home User control Acoustic comfort Visual comfort Thermal comfort Indoor air quality Energy performance Obsolescence Degradation Scenario 0 G G G G F F F F E G F G A A A G G Scenario 1 E E F E D E E B C G F E A A A E C Scenario 2 C C C B C B A B A D F B E C A B B Scenario 3 A A A A A A A A A A A A E C D A B 39

40 Synthesis of the comfort and health evaluations before renovation 40

41 Global synthesis for building after renovation (scenario 1) Aggregations in homeowners minds Aggregations using aggregation rules). 41

42 Presentation of the results (case study 1) 42

43 Selection of the most favourable scenario (case study 1) 43

44 Konklusioner Hjemme-coaching: HJEM, ikke HUS! Husejerne: Var mere informerede og mere interesserede Følte i kontrol samtidig med at beslutte De forstod og fornemmede de mange fordele De fandt sprog veltilpasset De valgte den bedste renovering strategi ifølge dem Flere case undersøgelser er stadig nødvendige for at teste værktøjet 44

45 Google søgeord : VBN Integrated Renovation Process case studies Tak for opmærksomheden Tøv ikke med at stille dine spørgsmål! Nicolas Galiotto Bæredygtighedskonsulent, ph.d. Årstiderne Arkitekter - mail: ng@aarstiderne.dk - mobil:

ProSUM Prospecting Secondary raw materials in the Urban mine and Mining wastes

ProSUM Prospecting Secondary raw materials in the Urban mine and Mining wastes Background Project Summary The use of secondary raw materials and recycling was recommended to the European Commission as