How To Design Sustainable Buildings

Transcription

1 Tremendous Cost Cutting Potential by Sustainable Buildings Green Buildings planning procedures and examples NETWORK PARTNER of CSD - CH Page 1

2 Tremendous Cost Cutting Potential by Sustainable Buildings Green Buildings Planning procedures and examples Florian Betzler, Planungsteam Betzler GmbH & CO KG, Germany NETWORK PARTNER of CSD, Switzerland Page 2

3 Content Energy sources and reserves What means sustainability? Company presentation Life circle 40 years Influencing factors Sustainable buildings Examples Page 3

4 CSD and PTB main fields of activities PTB Network partner Environmental Architecture CSD: 5 main fields of activities Environment and Land Use Planning Geology, Geotechnical Engineering Design of Underground Structures Waste and Contaminated sites Water, Waste Water Page 4

5 Introduction Team CSD and PTB 250 Mitarbeiter in der Schweiz an 16 Standorten Bauingenieure Geologen / Hydrogeologen / Geophysiker Kultur- / Umw elt- / Forstingenieure 38 Geografen / Raumplaner / Biologen Physiker / Chemiker / Maschineningenieure Zeichner / Laborant / Operateure Sekretariat / kaufm. Angestellte Lehrlinge / Praktikanten Page 5

6 Usage and findings of crude oil Findings Usage Source: Lantschner, N., KlimaHaus: Aus Liebe zum Wohnen Bozen:Athesia Page 6

7 Crude oil price history Source: / Page 7

8 Objectives for sustainable construction Economy Environment Society Cost-planning regarding maintenance and life cycle Flexibility of spacing and potential for ease of use System separation allowing for easy reconditioning Easily available raw Integration ti in existing materials quarters Construction High user quality: materials with low - Inside air quality grey energy content -Comfort Low harmful - Use of day light substances content Accessibility: Optimise energy use - Public transport No new construction ti - Leisure zones on green meadow 3 Dimensions of sustainable construction Page 8

9 Intervention and Effects Project Definition Advisor Design Management Sustainability Controlling / Consulting Ecological Site Supervision Due Diligence Investigation Cost Degree of Influence Environmental effects Strategic Planning Conceptual Design Design Tendering Realisation Operate and Maintain Conversion / Demolition Page 9

10 Construction Process and Sustainability Strategic Planning Conceptual Design Design Tendering Realisation Operate and Maintain Conversion / Demolition Page 10

11 Building Lifecycle 40 years average Property 10% Building Construction 15% Energy Costs 50% Building Maintanance 25% Page 11

12 EnEV Parameters Summary Dependency of different parameters affecting the primary usage Systems engineering i 100% Anlagentechnik Constructional heat insulation (H T, max; start niveau) 20-25% Baulicher Wärmeschutz Heat bridge (1.5% per 0.01 W/(m²K)) 12% Wärmebrücken Compactness (2 x V) 10% Kompaktheit Compactness (3 x V) 20% Kompaktheit Tightness of building 6% Gebäudedichtheit Optimization of windows (south face max. 50% windows) 5% Optimierung der Fenster Südfassade max. 50% Fenster Method of calculation 1-4% Berechnungsverfahren Page 12

13 Heating cost per year Traditional House Euro/m² Fairly new house (built after 1991) Euro/m² KlimaHaus B 5 Euro/m², Klimaagentur Bozen KlimaHausA 3E Euro/m², Klimaagentur Bozen KlimaHaus Gold 1 Euro/m², Klimaagentur Bozen Source: Lantschner, N., KlimaHaus: Aus Liebe zum Wohnen Bozen:Athesia Page 13

14 Life cycle of building materials (Lebenszyklus) Level of construction Kontruktionsebene Utilization Nutzung Assembly Einbau Demolition Abriss Production Herstellung Re-use Verwertung Level of raw material Rohstoffebene Extraction Gewinnung Page 14

15 Sustainable buildings - Example School building Source: db, Deutsche Bauzeitung, 05/2008, p.75 Architects: Cheret und Bozic, Stuttgart, Germany Page 15

16 Total costs D1: Investment costs (DIN 276) EnEV: EnEV -30%: Passivhaus: E3: Heating costs EnEV: /a EnEV -30%:50563 /a Passivhaus: 3843 /a Source: db, Deutsche Bauzeitung, 05/2008, p.75 Page 16

17 Sustainable buildings - Example Source: Architect Rolf Disch, Freiburg in Breisgau, Germany Page 17

18 Architect Georg W. Reinberg, Wien, Austria Solar architecture summer day winter day Summer night day lighting Page 18

19 Reconstructioning by Planungsteam Betzler, Hamburg Page 19

20 Reconstructioning by Planungsteam Betzler, Hamburg Page 20

21 Green Building by Planungsteam Betzler, Hamburg Page 21

22 Green Building by Planungsteam Betzler, Hamburg Page 22

23 Future Green Building by Planungsteam Betzler, Hamburg Page 23

24 Findings Sustainable engineering is a multidisciplinary task needs an accurate communication between cunstructors, users and engineers needs early integration to the planning process implies to account the whole life time cycle focusses just on the relevant aspectsn adds value for the future. Page 24

25 Ecological concept Civil engineering Energy Construction products/ Harmful substances/ Constructions Environmental problems Water Cycle of matter/ waste avoidance New issue 1 Ecological concept Traffic/ mobility New issue 2 Social conscience New issue 3 Page 25

26 Thank You for Your Attention! Questions? Page 26