the life cycle performance of sustainable renovation concepts

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Central GovernmentProvinceGovernmental water agencyMunicipalityProsperity agencyLandownerDirect local residentsOther involved residentsFuture userProject developerArchitectContractorConstructorConsultantsFinancial consultantEnvironmental organizationsSubsidy distributorThe stakeholders in a renovation project are considered to be the same as thestakeholders in a new development project. The list above describes the possiblestakeholders in a renovation project. Appendix V describes the role and the requiredfocus of involved stakeholders in a renovation project for the implementation ofsustainable renovation applications.PROCESSRenovation of the current built environment has a high potential in the field of energysaving and CO 2 reduction. However, the integration of energy- and sustainability aspectsin the current built environment is not applied as frequently as desired. Experiences fromthe Dutch government point out that integration of sustainability aspects in the earlyphases of a renovation process can be advantageous for the implementation of theseaspects (Hoppe, 2009). Apparently, the process has an influence on the amount ofinnovative sustainable measures that are applied.This subparagraph compares the conventional renovation process with a process that isrequired for the successful execution of innovative projects. For this comparison, insightsfrom the case “De Tempel” and insights from experts interviews results in conclusionsabout the process that is most suitable for a „WarmBouwen renovation project‟.CONVENTIONAL RENOVATION PROCESSPHASESTenderProgramDesignConstructionAfter concerns / use /maintentancePROCESSESSubscriptionDialogueSelection of partiesInitiativeFeasibilityProject definitionSpatial programPreliminary DesignDefinitive DesignTechnical DesignDrawingsPrice and forming contractConstruction DesignConstruction -ManagementCompletionUsage/garantuee/ afterconcernsUsage / MaintenanceRenovation /redevelopmentDemolishFIGURE 13-TRADITIONAL RENOVATIONPROCESS (POEL, HUTJES & TIEKSTRA,2007)In the report “Innovatieve totstandkomingsprocessen inde woningbouw”, Poel, Hutjes & Tiekstra (2007)describe the traditional renovation process as known inthe Netherlands. Figure 13 provides a graphicaloverview of this process.Poel, Hutjes & Tiekstra (2007) describe that thetraditional renovation process leads towards problemsfor the integration of sustainability measures into adesign. Especially in the design process, the aspectenergy and sustainability is considered to be notimportant enough. As a result, this aspect is not takeninto account in an early phase. The consultant thatattends to interests from sustainability point of viewgets involved in a later phase. In practice this leads to aseparation between the constructive and architecturaldesign, and the design of the installations. Especially forrenovations it accounts that the long term strategicpolicy is not given enough attention. As a result,aspects as comfort, air quality, and sensation of thehouse are not important enough during the process.Also the changes in process phases lead towardsefficiency losses. The separation of disciplines andphases also lead towards a separation in expertise.Therefore, involved parties as the architect and the28
installation technical advisor pull back on their field of expertise and exhibit risk avoidingbehavior. Next to that, the organization structure does not stimulate integration betweeninvolved parties. (Poel, Hutjes & Tiekstra, 2007).The traditional design process is characterized by a mainly linear structure. Thesuccessive components of the processes in the different phases do not provide space foran adequate optimization of the design. Optimization afterwards is in most cases onlypartly possible and leads toward high costs. Figure 14 gives a graphical overview of thetraditional design process.FIGURE 14-TRADITIONAL DESIGN PROCESS (POEL, HUTJES & TIEKSTRA, 2007)Since around 1992 there has been attention for the necessity at radical renovationprojects, to come to an improved integration of energy- and sustainability measures.Research on this subject points out that integration of energy- and sustainabilitymeasures in an early phase of the renovation process is advantageous for effectiveimplementation.Current experiences from various national and international projects developed theinsight that: (Poel, Hutjes & Tiekstra, 2007)- An integrated approach should broaden itself to all aspects of building, includingenergy- and sustainability aspects.- Realizing an integrated approach requires an adapted and suitable organizationalstructure, as well as adapted and suitable responsibilities within this organizationalstructure.- Next to knowledge and expertise, also the attitude and skills of involved parties in thedesign team are important.INNOVATIVE INTEGRATED PROCESSThe previous paragraph shows that the traditional renovation process leads towardsproblems for the implementation of sustainability measures in the design. For successfulimplementation of these measures another process is required to facilitate the project.An integrated process does facilitate the implementation of innovative concepts andsustainability measures.An integrated design process is characterized by a connection of design cycles which areseparated by testing moments. This results in a process, whereby the required expertiseof specialists is brought into the project at the right phase of the process. This integratedapproach also takes a broad scale of possibilities into consideration from the beginning ofthe process. In the integrated process it is very important to test progress of theprogram of requirements during the process. The program of requirements changesbased upon insights that come up during the process. In an integrated process, there is adynamic program of requirements. (Poel, Hutjes & Tiekstra, 2007)Figure 15 gives a graphical overview of the integrated design process.29
Page 1: THE LIFE CYCLE PERFORMANCEOF SUSTAI
Page 5 and 6: PREFACEThis report is the result of
Page 7 and 8: INDEXPREFACE ......................
Page 9 and 10: figure 2 & 3. This results in incre
Page 11 and 12: RENOVATIONThe third option is large
Page 13 and 14: 2. RESEARCH DESCRIPTIONThis chapter
Page 15 and 16: 2.5 RESEARCH METHODOLOGYThis paragr
Page 17 and 18: profession of the expert. The notes
Page 19 and 20: 2.5.5 PHASE 4 - MODEL APPLICATIONIn
Page 21 and 22: HUMAN BEHAVIORIn his report, Hoppe
Page 23 and 24: of negative network externalities,
Page 25 and 26: - Rental price of the house- Compos
Page 27: During the execution of this resear
Page 31 and 32: CONCLUSIONThe process at case „De
Page 33 and 34: - Durability- ComfortThe EPA states
Page 35 and 36: To come to a definition of the conc
Page 37 and 38: Currently, there are 330 BREEAM exp
Page 39 and 40: - LCA is a relative approach, struc
Page 41 and 42: considers whole life cycleenvironme
Page 43 and 44: - The influence and relevance of th
Page 45 and 46: 4. MODELThis chapter goes into deta
Page 47 and 48: 4.2 MODEL & EXPLANATIONThis chapter
Page 49 and 50: Lastly, the existing models lack a
Page 51 and 52: the financial aspect can lead to va
Page 53 and 54: The normalized score of the „stan
Page 55 and 56: calculation, an assumption or expec
Page 57 and 58: - TransmissionThe transmission of a
Page 59 and 60: C=2: Functional lifespan of the ele
Page 61 and 62: The aquiferous package is essential
Page 63 and 64: possibilities that a building offer
Page 65 and 66: LIFESPAN OF BUILDINGNormally, the l
Page 67 and 68: WARMBOUWEN RENOVATIONFigure 46 show
Page 69 and 70: EnergyEPC EPC (average) Rental poin
Page 71 and 72: Lifespan of elements/functional cha
Page 73 and 74: 5.4 MODEL OUTPUT - PERFORMANCE OF W
Page 75 and 76: ANALYSIS 12: PERFORMANCE ON QUALITY
Page 77 and 78: 5.5 IMPROVEMENTS FOR WARMBOUWENIMPR
Page 79 and 80:
6. DISCUSSIONThis chapter provides
Page 81 and 82:
SUBSIDY ON SUSTAINABLE CONCEPTSThe
Page 83 and 84:
7. CONCLUSIONSIn this chapter the d
Page 85 and 86:
There is a positive correlation bet
Page 87 and 88:
6. WHAT IS THE SUSTAINABLE PERFORMA
Page 89 and 90:
BIBLIOGRAPHYLITERATURE[1] Adalberth
Page 91 and 92:
[34] Poel, A., Hutjes, G.T. en C.A.
Page 93:
APPENDICES93
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