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Prefabricated Systems for Low Energy / High Comfort Building Renewal Project Presentation

continue!. Prefabricated Systems for Low Energy / High Comfort Building Renewal Project Presentation Mark Zimmermann, Operating Agent Swiss Federal Institute for Materials Testing and Research. continue!. New, innovative international building renovation R&D-project.

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Prefabricated Systems for Low Energy / High Comfort Building Renewal Project Presentation

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  1. continue! Prefabricated Systems for Low Energy / High Comfort Building Renewal Project Presentation Mark Zimmermann, Operating AgentSwiss Federal Institute for Materials Testing and Research

  2. continue! New, innovative international building renovation R&D-project. The goal is to accelerate advanced retrofit of domestic buildings by developing and promoting new renovation concepts. The project is focussing on prefabricated and factory assembled roofs, façades and HVAC systems. The main issues are optimised space use, energy efficiency, and solar integration quality assurance. The concept was proposed by representatives of the IEA Solar Heating and Cooling Program, the Heat Pumping Program, the PV Program and by the IEA Energy Conservation in Buildings and Community Systems Program (ECBCS).

  3. Traditional Renovation does on site insulation of roofs and façades Prefabricated Systems for Low Energy / High Comfort Building Renewal This work is often difficult and unsatisfactory: difficult connections between roofs and façades, difficult situations at window openings, thermal bridges due to balcony slabs The installation of a new ventilation system causes a lot internal renovation work and is often unsatisfactory

  4. The old roof is removed (when appropriate) and replaced by a new, highly insulated and airtight roof construction Prefabricated Building Renovation offers new opportunities The new roof offers a new attractive living space that allows the integration of a new HVAC system and a solar roof system The new ventilation system is fixed on the façades and covered by prefabricated highly insulated façade elements. Thermal bridges are eliminated, old balconies are used for a living room extension (where appropriate).

  5. New roof elements are lifted on the building. The new roof is completed within hours. Photos: Viridén and Partner

  6. The apartment building “Magnusstrasse” after renovation Approx. 90 % energy saving for heating and hot water 50 % for electricity Architect/Photo: Viridén and Partner, Zurich

  7. continue! Annex Proposal: Prefabricated Building Renewal Proposed Substasks

  8. continue! • A: Concept definition and specification • Development of the whole building renovation concept • Prototypes simulated, optimised, designed and specified, • Subtask A will provide the specification for Subtasks B, C and D and will ensure the coordination of this work.

  9. continue! • B: Integrated roof system • Design for prefabrication, quality assurance, cost optimisation and rapid construction. • Optimisation of space use, HVAC and solar integration • Subtask B will provide the know-how for new roof systems for demonstration buildings

  10. continue! • C: HVAC and solar system • Design of new HVAC system, replacing the oversized and inefficient old heating system. • Optimised concepts for heating, cooling, ventilation, heat recovering, hot water and solar system integration • Subtask C will provide know-how for modular technical systems, integrated in prefabricated roof elements and will do the factory performance testing.

  11. continue! • D: Façade elements • Development of highly insulating façade elements including windows and other openings, opaque wall insulation and integrated service distribution for heating, cooling and ventilation. • Provision of added value by converting old balconies to sunspaces or living room extensions. • Optimise design, prefabrication as far as possible • Subtask D will provide the know-how for optimised façade constructions and do the quality assurance on site.

  12. continue! • E: Monitoring and dissemination • Measurement and evaluation of overall performance, including energy performance comfort, cost analysis and acceptance by inhabitants and building owners. • Dissemination of concepts and demonstration results, mainly for designers and building stock owners

  13. Challenges • Optimised solution packages • Advanced measuring technologies • Integration and prefabrication • Quality assurance and risk management • Opportunities • “Complete” modular retrofit solution • Highest quality standard, best technology • Cost reduction potential • Short construction time, low tenant disturbance

  14. continue! Time Schedule Oct. 3-5, 2005 Annex Conception Workshop Nov. 2005 Acceptance of Annex by Executive Committee Jan. 2006 Start of preparation phase, national contracts Jan. 2007 Official Annex start Nov. 2007 Presentation “Concept definition and specification” Sept. 2009 Design, Construction of demonstration buildings Nov. 2009 Draft reporting June 2010 Annex termination

  15. End! Annex Kick off Workshop Prefabricated Systems for Low Energy / High Comfort Building Renewal Date March, 2006 (place and date still to be determined) Objective Definition of work packages, Annex participants Participants Potential Annex participants / OA(Research partnersdesigners & architectsindustry partnersbuilding owners and investors)

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