Presentation on theme: "The Movement towards Sustainable Buildings in Japan"— Presentation transcript:
1 The Movement towards Sustainable Buildings in Japan 2005 WGBC Congress in San Francisco, June 1, 2005The Movement towards Sustainable Buildings in JapanKazuo IwamuraProfessor, Musashi Institute of TechnologyVice-President, Japan Institute of ArchitectsDirector of the National Conference Board of SB05Tokyo
2 Japan Sustainable Building Consortium (JSBC) Chair: Prof. Shuzo MurakamiThe JSBC was founded in 2001 and constituted of almost all the building- & construction-related organizations from Academia, Industry and Governmentunder the auspice of the Japanese Ministry of Land, Infrastructure and Transport.Current major assignments are:Development of CASBEEandPreparing and operationof SB05TokyoAcademiaIndustryGovernment
3 Concept & Dissemination CASBEEComprehensive Assessment System forBuilding Environmental EfficiencyConcept & DisseminationbyThe Japan Sustainable Building Consortium(JSBC)
4 Task Force for CASBEE Development Japan Sustainable Building Consortium (JSBC)Chair: Prof. Shuzo MurakamiAcademiaThis task force is constitutedof the following committees;Steering CommitteeEnergyResource productivityIndoor Air QualityLocal environmentIndividual HouseUrban & districtHeat IslandGBATool & Case studyIndustryGovernment
5 Japanese Government Policy Drive about ＣＡＳＢＥＥ1. Environmental Action Plan, Jun by Ministry of Land, Infrastructure & TransportDissemination of CASBEE for New & Existing ConstructionEstablishment of CASBEE Accreditation ProgramPromotion of CASBEE to be introduced by local governments2. Green Program of Government Buildings, Jul. 2004Introduction of CASBEE to the Green Design Guidelines forgovernment buildings3. Decision of Urban Renaissance Headquarters, Cabinet Secretariat, Dec. 2004CASBEE for District/Region to be developed within two yearsEco-rating of urban renewal projects within five years
6 Introduction of CASBEE by Major Local Governments 1. City of Nagoya: April 20042. City of Osaka: October 20043. City of Yokohama: July 2005It is mandatory for building permit applicants to submit the assessed data, part of which is to be disclosed on the website of local government.Many other major local governments are now preparing to introduce CASBEE.
7 Basic Idea of CASBEE CASBEE is a comprehensive, but clear, simple & affordable system to assessthe building sustainability through both1. “Q” :Building Environmental Quality & Performanceand2. “L“ :Building Environmental Loadings,according tothe “Hypothetical Boundary” of the project.
8 What is ‘Hypothetical Boundary’? Assessment category “Q”as positive impactinside the boundaryAssessment category “L”as negative impactoutside the boundaryResourceConsumption,Embodied CO2Emission, etc.Emission ofAir-pollutants,Noise, Heatetc.Hypothetical Enclosed Space(Neighboring building)(Neighboring building)Site BoundarySoil, Water-pollutants etc.
9 From Eco-Efficiency To BEE (Building Environmental Efficiency) Values of products or servicesEnvironmental load unit1. Eco-Efficiency =2. Revised definition =3. BEE in CASBEE =Beneficial outputInput + non-beneficial outputBuilding environmental Qualityand performanceBuilding environmental Loadings
10 Basic Idea of CASBEE (cont’d) Assessment result is finally indicatedin terms ofBEE = Q / LBEE: Building Environmental EfficiencyQ : Building Environmental Quality & PerformanceL : Building Environmental Loadings
11 1. Basic Idea of CASBEE (cont’d) 1-4. CASBEE has four primary assessment areas,such as;1) Energy Efficiency2) Resource Efficiency3) Local Environment4) Indoor Environmentto be re-categorized into“Q-1~3” & “L-1~3” for BEE evaluation
12 Assessment Areas of CASBEE 1. Energy efficiency2. Resource efficiency3. Local environment4. Indoor environment(ca. 80 sub-items in total)Primary AreasQ1: Indoor environmentQ2: Quality of ServicesQ3: Outdoor environment on siteNumerator AreasRe-categorized intoQ (Quality) andL (Loadings)to indicateBEE =L1: EnergyL2: Resources and materialsL3: Off-site environmentDenominator AreasHypothetical Enclosed Space for CASBEEAssessment Areas ofQ & LBEE Evaluation
13 2.5 Entire Assessment Result Sheet-1 Project OutlineRader Chart of SQ & SLRBar Charts of SQ-1~3Bar Charts of SLR-1~3Graphical Display ofBEE = Q / LOptional Assessment Items
14 2.5 Assessment Result Sheet-2 “Q(SQ)” & “LR(SLR)” Display
15 2-5. “BEE Graphical Display” 100(Very sustainable)SAB+60BEE=2.0B-B-Q50BEE=0.5C(Unsustainable)3050L100Q = 25 × (SQ - 1), L = 25 × (5 - SLR)SQ: Total score of Q categories, SLR: Total score of L categories
16 Labeling results of ca. 80 submitted projects according to CASBEE Nagoya 50100Q(uality)AB+-COfficeSchoolRetail shopRestaurantHallHospitalHotelApartmentFactoryL (Load)Rank S:excellentA:very goodB+:goodB-:fairly poorC:poorSSubmission mandatory for buildings with floor areas of more than 2000m2
17 CASBEE Family 1-5. CASBEE Family comprises four basic Tools, to be customized according tothe design process, including;1) Tool-0: Pre-design Assessment Tool(to be elaborated)2) Tool-1: for New Construction(completed in 2002)3) Tool-2: for Existing Building(completed in 2004)4) Tool-3: for Renovation(completed in 2005)
18 CABEE Family Tools & Design Process Main UsersPre-designDesignPost-designPlanningstageDesign stageConstructionOperationRenewaldesign stageTool-0:CASBEE for Pre-designClientPlannerDesignerIssues only possible to beassessed atplanning stage,Including the site selectionTool-1:CASBEE for New ConstructionEngineerConstructorAssessed by themselvesIssues to bepreliminary & final design stageconstruction stage, including design amendmentsTool-2:CASBEE for Existing BuildingAssessed by AccreditedExpertsAssessment& labelingafter one yearoperation or moreTool-3:CASBEE for RenovationAssessed bythemselvesat renewal stage
19 Manuals of CASBEE Tool-1: CASBEE for Tool-2: CASBEE for New ConstructionTool-2: CASBEE forExisting Building
20 Extension of CASBEE Family includes:1) CASBEE-1TC: Temporary Construction(completed in 2004)2) CASBEE-HI: Heat Island(completed in 2005)3) CASBEE-DR: District & Region(to be completed in 2005)4) CASBEE-DH: Detached House(to be completed in 2006)
21 Manual of CASBEE Tool-1TC an extension of CASBEE family Tool-1TC: CASBEE forTemporary Construction(issued in 2004)The 2005 World Exposition, Aichi, Japan was assessed for the first time.
22 Certification & Accreditation 1. CASBEE Assessment Certification:provided by IBEC2. CASBEE Assessor Accreditation:associated with the education systemalso provided by IBECIBEC: Institute for Built Environment & Energy Conservation
23 We are looking forward to seeing you all at: 27-29 September 2005