Tremendous Cost Cutting Potential by Sustainable Buildings ... Betzl… · - Use of day light System separation allowing for easy reconditioning Low harmful substances content Optimise

Tremendous Cost Cutting Potential bySustainable Buildings – Green Buildingsg g

planning procedures and examples

NETWORK PARTNER of CSD WWW CSD CH

Page 1NETWORK PARTNER OF CSD, SWITZERLAND WWW.CSD.CH

NETWORK PARTNER of CSD - WWW.CSD.CH

Tremendous Cost Cutting Potential byTremendous Cost Cutting Potential bySustainable BuildingsSustainable Buildings –– Green BuildingsGreen BuildingsSustainable Buildings Sustainable Buildings Green BuildingsGreen BuildingsPlanning procedures and examplesPlanning procedures and examples

Florian Betzler, Planungsteam Betzler GmbH & CO KG, Germany

NETWORK PARTNER f CSD S it l d


NETWORK PARTNER of CSD, Switzerland

ContentContent

Energy sources and reservesEnergy sources and reserves

What means sustainability?

Company presentation

Life circle 40 years

Influencing factorsInfluencing factors

Sustainable buildings – Examples


CSD CSD andand PTB PTB mainmain fieldsfields ofof activitiesactivities

Environmental ArchitecturePTB Network PTB Network partnerpartner

Environment and Land Use PlanningCSD: 5 CSD: 5 mainmain fieldsfields ofof activitiesactivities

Geology, Geotechnical Engineering

Design of Underground Structuresg g

Waste and Contaminated sites

Water, Waste Water


Water, Waste Water

Introduction Team CSD and PTBIntroduction Team CSD and PTB

250 Mitarbeiter in der Schweiz

an 16 Standorten

Bauingenieure

52

38

26 Geologen / Hydrogeologen / Geophysiker

Kultur- / Umw elt- / Forstingenieure

Geografen / Raumplaner / Biologen

Physiker / Chemiker / M aschineningenieure

53

339433 Zeichner / Laborant / Operateure

Sekretariat / kaufm. Angestellte


Lehrlinge / Praktikanten

Usage and findings of crude oilUsage and findings of crude oil

Findings

Usage

h l b h h


Source: Lantschner, N., 2007. KlimaHaus: Aus Liebe zum Wohnen 2008. Bozen:Athesia

Crude oil price history 2004Crude oil price history 2004--20082008

// /


Source: http://www.tecson.de/prohoel.htm

ObjectivesObjectives forfor sustainablesustainable constructionconstruction

C t l i

EconomyEconomy EnvironmentEnvironment SocietySociety

E il il bl I t ti i i tiCost-planning regarding mainte-nance and life cycle

Easily available raw materials Construction

Integration in existing quartersHigh user quality:

Flexibility of spacing and potential for ease of use

materials with low grey energy contentLow harmful

- Inside air quality- Comfort- Use of day light

System separation allowing for easy reconditioning

Low harmful substances contentOptimise energy useN t ti

y g

Accessibility:- Public transport- Leisure zonesreconditioning

3 Dimensions of sustainable construction

No new construction on green meadow

Leisure zones


3 Dimensions of sustainable construction

Intervention and Intervention and EffectsEffects

Project Definition AdvisorDesign Management

Due Diligence Investigation

CostSustainability Controlling / Consulting

Ecological Site Supervision

Degree of Influence

Environmental effectsEnvironmental effects

Conceptual Design DesignStrategic

PlanningTendering Realisation Operate and

MaintainConversion / Demolition


Construction Process and SustainabilityConstruction Process and Sustainability

Conceptual DesignStrategic Design DesignPlanning

Realisation Operate and Tendering Realisation p

Maintain

Conversion / Demolition


Building Lifecycle 40 years averageBuilding Lifecycle 40 years average

Property10%

Building Construction

15%

Building Maintanance

25%

Energy Costs50%


EnEVEnEV ParametersParameters

Summary

Dependency of different parameters affecting the primary usageDependency of different parameters affecting the primary usage

S t i i 100%Systems engineering 100%

Constructional heat insulation (HT, max; start niveau) 20-25%

H t b id 12%

Anlagentechnik

Baulicher Wärmeschutz

Heat bridge (1.5% per 0.01 W/(m²K)) 12%

Compactness (2 x V) 10%Wärmebrücken

Kompaktheit

Compactness (3 x V) 20%

Tightness of building 6%Kompaktheit

Gebäudedichtheit

Optimization of windows (south face max. 50% windows) 5%

Method of calculation 1-4%Optimierung der Fenster Südfassade max. 50% Fenster

Berechnungsverfahren


g

Heating cost per yearHeating cost per year

Traditional House – 18-25 Euro/m²

Fairly new house (built after 1991) 12 15 Euro/m²Fairly new house (built after 1991) – 12-15 Euro/m²

KlimaHaus B – 5 Euro/m², Klimaagentur Bozen

Kli H A 3 E / ² Kli t BKlimaHausA – 3 Euro/m², Klimaagentur Bozen

KlimaHaus Gold – 1 Euro/m², Klimaagentur Bozen


Source: Lantschner, N., 2007. KlimaHaus: Aus Liebe zum Wohnen 2008. Bozen:Athesia

Life cycle of building materials Life cycle of building materials ((LebenszyklusLebenszyklus))

UtilizationUtilizationLevel of constructionKontruktionsebene

NutzungNutzung

DemolitionDemolitionAssemblyAssembly

Kontruktionsebene

AbrissAbrissy

Einbauy

Einbau

Re-useRe-useProductionProduction Re useVerwertungRe use

Verwertung

ExtractionExtraction

ProductionHerstellung

ProductionHerstellung

ExtractionGewinnung

ExtractionGewinnung

Level of raw materialR h t ff b


Rohstoffebene

Sustainable buildings Sustainable buildings -- Example School buildingExample School building

Source: db, Deutsche Bauzeitung, 05/2008, p.75Architects: Cheret und Bozic, S G


Stuttgart, Germany

Total costsTotal costs

D1: Investment costs (DIN 276)

EnEV: 19671071 €EnEV: 19671071 €EnEV -30%:20109911 €Passivhaus: 21846895

€

E3: Heating costsE3: Heating costsEnEV: 81438 €/a

EnEV -30%:50563 €/aPassivhaus: 3843 €/a


Source: db, Deutsche Bauzeitung, 05/2008, p.75

Sustainable buildings Sustainable buildings -- ExampleExample


Source: Architect Rolf Disch, Freiburg in Breisgau, Germany

Architect Architect GeorgGeorg W. W. ReinbergReinberg, , WienWien, Austria , Austria –– Solar architectureSolar architecture

summer day winter day

Summer night day lighting


ReconstructioningReconstructioning by by PlanungsteamPlanungsteam Betzler, HamburgBetzler, Hamburg


ReconstructioningReconstructioning by by PlanungsteamPlanungsteam Betzler, HamburgBetzler, Hamburg


Green Building by Green Building by PlanungsteamPlanungsteam Betzler, HamburgBetzler, Hamburg


Green Building by Green Building by PlanungsteamPlanungsteam Betzler, HamburgBetzler, Hamburg


Future Green Building by Future Green Building by PlanungsteamPlanungsteam Betzler, HamburgBetzler, Hamburg


FindingsFindings

Sustainable engineering…

is a multidisciplinary task

needs an accurate communication between cunstructors, users

and engineersg

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.


Ecological conceptEcological concept

EnergyConstruction products/Harmful substances/

Civil engineeringHarmful substances/Constructions

Cycle of matter/ t id

Environmental problems

Water

Traffic/ mobility

waste avoidance

New issue 1Traffic/ mobility

Ecological concept

New issue 2

Social conscience

New issue 3

Social conscience


fThank You for Your Attention!Questions?Questions?


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Tremendous Cost Cutting Potential by Sustainable Buildings ... Betzl… · - Use of day light System separation allowing for easy reconditioning Low harmful substances content Optimise