Timber structures and energy efficiency in the future . . . . . . . . . . 1 Quelle: Meadows et. al. 1992, Weizsäcker et. al. 1995 If efficiency grows +5% … Quelle: Weizsäcker et. al. 1995 2 Classify the responsible areas for glasshouse emissions in an increasing row! a) USA b) South America Beitrag zur globalen Erwärmung c) EU 1,1% 2,5% 2,3% d) Japan 2,6% 3,7% USA 3,9% EU 30,3% GUS Asien 12,2% Südamerika Japan Mittlerer Osten Afrika Australien 13,7% Rest 27,7% If you add China today: a) USA (22,2%) b) China (18,4%) c) EU (14,7%) d) Russia (5,6%) e) India (4,9%) f) Japan (4,6) And Finnland ? Rank 48 – 0,2% (= 0,002 x total CO2 - emission)! But: Number of inhabitants = 0,00078 x world population! 3 The European Reality Published by the European Comission in 2000! 4 5 So what is about: + Insulation of buildings? + Use of solar energy ? + Use of wind energy ? + Use of biomass energy ? + Use of timber in buildings ? 6 + Insulation of existing buildings? Design buildings as passive houses from the beginning? 7 Campo – Am Bornheimer Depot Residential building with 140 flats in passive house design Concrete frame with Non-loadbearing timber exterior walls Finished December 2008 Client: ABG Frankfurt Holding GmbH 8 Das größte Passivhaus Europas? Oder gar der Welt? BV Campo – Am Bornheimer Hang Architekten: FAAG, Albert Speer & Partner, Stefan Forster, Bauherr: ABG Frankfurt Timber structure ? 9 10 Mounting with scaffold 11 Mounting with lift Solar active facades possible! 12 Solar active facades possible! Solar active facades 13 Top-on roof structures and renovation – more intelligent as demolition and new erection? Frankfurt Tevesstraße Heating energy consumption ca. 220 kWh/m²a (22 liter oil/m²a) Client: ABG Frankfurt Holding GmbH 14 Frankfurt Tevesstraße • Heating energy consumption before ca. 220 kWh/m²a afterwards ca. 18 kWh/m²a Faktor 12! • Exterior wall insulation – insulation-stucco system with styrofoam 15 Univ.-Prof. Dr.-Ing. Stefan Winter Technische Universität München Facade orthophoto of new project in Frankfurt, Rotlintstr. 16 Univ.-Prof. Dr.-Ing. Stefan Winter Technische Universität München 3D - Laserscan Aufmaß Rotlintstr., Frankfurt/Main, 2008 Univ.-Prof. Dr.-Ing. Stefan Winter Wire netting model Technische Universität München Rendering 17 Univ.-Prof. Dr.-Ing. Stefan Winter Technische Universität München facade - unevenness First model-project 18 19 Close the gap! 7 storey timber structure - Berlin (2007) Kaden Klingbeil, Architekten Berlin Univ.-Prof. Dr.-Ing. Stefan Winter und Dr.-Ing. Heinz Pape 20 Post and beam structure Univ.-Prof. Dr.-Ing. Stefan Winter und Dr.-Ing. Heinz Pape Timber-concrete composite floor (F90) Univ.-Prof. Dr.-Ing. Stefan Winter und Dr.-Ing. Heinz Pape 21 Visible timber ceiling Univ.-Prof. Dr.-Ing. Stefan Winter und Dr.-Ing. Heinz Pape Exterior walls (W 30-B) X-lam, insulation, stucco Univ.-Prof. Dr.-Ing. Stefan Winter und Dr.-Ing. Heinz Pape 22 Add more benefits! Renewable fuel 23 24 The challenge? Improvement of energy efficiency and climate protection as the motor of development ! But: A pure passive house standard is not sufficient! Complete developments of energy self-sufficient areas is necessary ! In addition a new systematic of building installation and supply of energy is necessary ! First examples are under development, e.g. Pfaffenhofen 25 First examples are under development, e.g. Pfaffenhofen Rember: If you transfer people to the countryside you also have to provide public transport ! Otherwise it will be an energy trap! First examples are under development, e.g. Pfaffenhofen Integral water and energy concepts Architects:Joachim Eble Architektur, Tübingen und Atelier Dreiseitl, Pfaffenhofen 26 First examples are under development, e.g. Pfaffenhofen Different energy supply and distribution concepts Architects:Joachim Eble Architektur, Tübingen und Atelier Dreiseitl, Pfaffenhofen The role of timber? • factory forest – the welfare factory • low energy material • renewable • very well fitting properties and a carbon storage! The world leading sustainable construction material! 27 If he will be an adult – he will buy a solar mobile and build a CerO2 ! (timber solar house with zero carbondioxid emission according to LCA) 28