ecbcs annex 50 psr

Prefabricated Systems for Low Energy Renovation of Residential Buildings Mark Zimmermann

International Energy Agency

Energy Conservation inBuildings and CommunitySystems Programme

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ECBCS Annex 50

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ECBCS Annex 50

Prefabricated Systems for Low Energy Renovation

of Residential Buildings

Project Summary Report

Mark Zimmermann



Copyright AECOM Ltd 2012

All property rights, including copyright, are vested in AECOM Ltd, Operating Agent for the ECBCS Executive Com-mittee Support Services Unit, on behalf of the Contracting Parties of the International Energy Agency Implementing Agreement for a Programme of Research and Development on Energy Conservation in Buildings and Community Systems.In particular, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of AECOM Ltd.

Published by AECOM Ltd, AECOM House, 63 - 77 Victoria Street, St Albans, Hertfordshire AL1 3ER, United Kingdom

Disclaimer Notice: This publication has been compiled with reasonable skill and care. However, neither AECOM Ltd nor the ECBCS Contracting Parties (of the International Energy Agency Implementing Agreement for a Pro-gramme of Research and Development on Energy Conservation in Buildings and Community Systems) make any representation as to the adequacy or accuracy of the information contained herein, or as to its suitability for any particular application, and accept no responsibility or liability arising out of the use of this publication. The informa-tion contained herein does not supersede the requirements given in any national codes, regulations or standards, and should not be regarded as a substitute for the need to obtain specific professional advice for any particular application.

ISBN 978-0-9562808-6-2

Participating countries in ECBCS:Australia, Austria, Belgium, Canada, P.R. China, Czech Republic, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Japan, Republic of Korea, the Netherlands, New Zealand, Norway, Poland, Portugal, Spain, Sweden, Switzerland, Turkey, United Kingdom and the United States of America.

Additional copies of this report may be obtained from:

ECBCS Bookshop C/o AECOM LtdColmore PlazaColmore Circus QueenswayBirminghamB4 6ATUnited KingdomWeb: www.ecbcs.orgEmail: [email protected]: www.ecbcs.org/annexes/annex50.htm

Mark ZimmermannEMPA-ZENberlandstrasse 129CH 8600 DbendorfSwitzerlandTel: +41 1 823 4178Email: [email protected]

Project Summary Report | www.ecbcs.org

Contents

About ECBCS 1

General Informaton 3

Project Outcomes 5

Sustanable Buldng Stock Renewal as Major Challenge 5

Holstc Buldng Renewal 5

Hgh Qualty Renovaton Modules for Faades and Roof 6

3-D Measurement of Exstng Buldngs 8

Renovaton Process 8

Market Analyss and Concept Development 9

Technology Development 10

Further Informaton 15

Project Partcpants 16

Prefabricated Systems for Low Energy Renovation of Residential Buildings

Project Summary Report | www.ecbcs.org

1Project Summary Report | www.ecbcs.org

About ECBCS


The Internatonal Energy Agency (IEA) was establshed n 1974 wthn the framework of the Organsaton for Economc Co-operaton and Development (OECD) to mplement an nternatonal energy programme. A basc am of the IEA s to foster co-operaton among the twenty-eght IEA partcpatng countres and to ncrease energy securty through energy conservaton, development of alternatve energy sources and energy research, development and demonstraton (RD&D).

Energy Conservation in Buildings and Community Systems

The IEA co-ordnates research and development n a number of areas related to energy. The msson of one of those areas, the ECBCS - Energy Conservaton for Buldng and Communty Systems Programme (www.ecbcs.org), s to develop and facilitate the integration of technologies and processes for energy efficiency and conservation into healthy, low emsson, and sustanable buldngs and communtes, through nnovaton and research.

The research and development strateges of the ECBCS Programme are derved from research drvers, natonal programmes wthn IEA countres, and the IEA Future Buldng Forum Thnk Tank Workshop, held n March 2007. The R&D strateges represent a collectve nput of the Executve Commttee members to explot technologcal opportuntes to save energy n the buldngs sector, and to remove techncal obstacles to market penetraton of new energy conservation technologies. The R&D strategies apply to residential, commercial, office buildings and communty systems, and wll mpact the buldng ndustry n three focus areas of R&D actvtes:

Dssemnaton,

Decson-makng,

Buldng products and systems.

The Executive Committee

Overall control of the program s mantaned by an Executve Commttee, whch not only montors exstng projects but also identifies new areas where collaborative effort may be beneficial. To date the following projects have been ntated by the executve commttee on Energy Conservaton n Buldngs and Communty Systems (completed projects are identified in grey):

Annex 1: Load Energy Determnaton of BuldngsAnnex 2: Ekstcs and Advanced Communty Energy SystemsAnnex 3: Energy Conservaton n Resdental BuldngsAnnex 4: Glasgow Commercal Buldng MontorngAnnex 5: Air Infiltration and Ventilation Centre Annex 6: Energy Systems and Desgn of CommuntesAnnex 7: Local Government Energy PlannngAnnex 8: Inhabitants Behaviour with Regard to VentilationAnnex 9: Minimum Ventilation RatesAnnex 10: Building HVAC System SimulationAnnex 11: Energy AudtngAnnex 12: Wndows and FenestratonAnnex 13: Energy Management n HosptalsAnnex 14: Condensaton and EnergyAnnex 15: Energy Efficiency in SchoolsAnnex 16: BEMS 1- User Interfaces and System IntegratonAnnex 17: BEMS 2- Evaluaton and Emulaton TechnquesAnnex 18: Demand Controlled Ventilation SystemsAnnex 19: Low Slope Roof Systems

About ECBCSPrefabricated Systems for Low Energy Renovation of Residential Buildings

2 Project Summary Report | www.ecbcs.org

Annex 20: Ar Flow Patterns wthn BuldngsAnnex 21: Thermal ModellngAnnex 22: Energy Efficient CommunitiesAnnex 23: Mult Zone Ar Flow Modellng (COMIS)Annex 24: Heat, Ar and Mosture Transfer n EnvelopesAnnex 25: Real time HEVAC SimulationAnnex 26: Energy Efficient Ventilation of Large EnclosuresAnnex 27: Evaluation and Demonstration of Domestic Ventilation SystemsAnnex 28: Low Energy Coolng SystemsAnnex 29: Daylght n BuldngsAnnex 30: Brngng Smulaton to ApplcatonAnnex 31: Energy-Related Envronmental Impact of BuldngsAnnex 32: Integral Buldng Envelope Performance AssessmentAnnex 33: Advanced Local Energy PlannngAnnex 34: Computer-Aided Evaluation of HVAC System PerformanceAnnex 35: Design of Energy Efficient Hybrid Ventilation (HYBVENT)Annex 36: Retrofitting of Educational BuildingsAnnex 37: Low Exergy Systems for Heatng and Coolng of Buldngs (LowEx)Annex 38: Solar Sustanable HousngAnnex 39: Hgh Performance Insulaton SystemsAnnex 40: Buldng Commssonng to Improve Energy PerformanceAnnex 41: Whole Building Heat, Air and Moisture Response (MOIST-ENG)Annex 42: The Smulaton of Buldng-Integrated Fuel Cell and Other Cogeneraton Systems (FC+COGEN-SIM)Annex 43: Testing and Validation of Building Energy Simulation ToolsAnnex 44: Integratng Envronmentally Responsve Elements n BuldngsAnnex 45: Energy Efficient Electric Lighting for BuildingsAnnex 46: Holistic Assessment Tool-kit on Energy Efficient Retrofit Measures for Government Buildings (EnERGo)Annex 47: Cost-Effectve Commssonng for Exstng and Low Energy BuldngsAnnex 48: Heat Pumpng and Reversble Ar CondtonngAnnex 49: Low Exergy Systems for Hgh Performance Buldngs and CommuntesAnnex 50: Prefabrcated Systems for Low Energy Renovaton of Resdental BuldngsAnnex 51: Energy Efficient CommunitiesAnnex 52: Towards Net Zero Energy Solar BuildingsAnnex 53: Total Energy Use n Buldngs: Analyss & Evaluaton MethodsAnnex 54: Integraton of Mcro-Generaton & Related Energy Technologes n BuldngsAnnex 55: Reliability of Energy Efficient Building Retrofitting - Probability Assessment of Performance & Cost (RAP-RETRO)Annex 56: Cost Effectve Energy & Carbon Doxde Emssons Optmzaton n Buldng RenovatonAnnex 57: Evaluaton of Emboded Energy & Carbon Doxde Emssons for Buldng ConstructonAnnex 58: Relable Buldng Energy Performance Charactersaton Based on Full Scale Dynamc MeasurementsAnnex 59: Hgh Temperature Coolng & Low Temperature Heatng n Buldngs

Working Group - Energy Efficiency in Educational BuildingsWorking Group - Indicators of Energy Efficiency in Cold Climate BuildingsWorkng Group - Annex 36 Extenson: The Energy Concept AdvserWorking Group - Energy Efficient Communities

About ECBCSECBCS Annex 50


The potental for energy conservaton n buldngs s largely domnated by the exstng stock. In most ndustralzed countres new buldngs wll only contrbute 10% - 20% addtonal energy consumpton by 2050, whereas more than 80% will be influenced by the existing building stock. If buldng renovaton contnues at the current rate and wth the present common polcy, between one to over four centures wll be necessary to mprove the buldng stock to the energy level of current new constructon.

Currently, most buldng renovatons address solated buldng components, such as roofs, faades or heatng systems. Ths often results in inefficient and ultimately expensive solutions, wthout an approprate long term energy reducton. Optmal results cannot be acheved by sngle renovaton measures and new problems could arse, for example local condensaton or overheatng.

The objectve of the ECBCS research project, Annex 50: Prefabricated Systems for Low Energy Renovation of Residential Buildings has been the development and demonstraton of nnovatve whole buldng renovaton concepts for typcal European apartment buldngs. The concepts are based largely on standardsed

faade and roof systems that are sutable for prefabrcaton. The hghly nsulated new buldng envelope ncludes the ntegraton of a ventlaton system.

Fgure 1 shows the prefabrcated faade modules that are used to construct a new buldng envelope outsde the exstng buldng. Ths s physcally optmal and does not reduce avalable space.

The concept s focussed on typcal apartment buldngs that represent approxmately 40% of the European dwellng stock. The advantages nclude:

Achieving energy efficiency and comfort for exstng apartment buldngs comparable to new advanced low energy buldngs (30 - 50 kWh/m per year);

Optmsed constructon qualty and cost efficiency due to prefabri-cation;

Opportuntes to create attractve new lvng space n the prefabrca-ted attc space and by ncorporatng exstng balcones nto the lvng space;

Fast renewal process wth mnmal dsturbances for the nhabtants.

Participating Countries:

AustraCzech RepublcFranceNetherlandsPortugalSwedenSwtzerland

General InformationPrefabricated Systems for Low Energy Renovation of Residential Buildings

Project leader: Mark Zimmermann, EMPA, SwitzerlandProject duration: 2006 - 2011 Further information: www.ecbcs.org/annexes/annex50.htm

Figure 1. Prefabricated faade modules used to construct a new building envelope outside the existing building.


Target Audiences

Prefabricated Systems for Low Energy Renovation of Residential Buildings s delverng information for building designers who focus on advanced building retrofit, energy, HVAC (heatng, ventlaton and ar condtonng) and sustanable constructon, the buldng ndustry with an interest in prefabrication of high performance energy building retrofit, apartment building owners wth an nterest n advanced renovaton concepts, as well as a general audence.

The project outcomes are gven below.

Retrofit Strategies Design Guide

A building retrofit guide [1] has been produced documentng typcal solutons for whole buldng renovatons, ncludng prefabrcated roofs with integrated HVAC components and for advanced faade renovaton. The report s supplemented by the Retrofit Simulation Report [9] and an electronic Retrofit Advisor [2], which allows a computer-based evaluaton of sutable renovaton strateges.

Retrofit Module Design Guide

Ths contans gudelnes for system evaluaton, desgn, the constructon process and qualty assurance for prefabrcated renovaton modules [3]. This publication includes the technical

documentaton of all developed renovaton solutons.

Case Study Building Renovations

Case studes of sx demonstraton stes n Austria, Netherlands, and Switzerland [4] have been documented.

Addtonal publcatons are:

Annex 50 Flyer [5], offering a short overview of the project and ts achevements

Buldng Typology and Morphology of Swss [6] and French Multi-Family Homes [7] [8]

Buldng Smulaton Report on energy efficiency of renovated buildings [9].

General InformationECBCS Annex 50


Sustainable Building Stock Renewal as Major Challenge

Energy efficient new buildings are important, but the energy consumpton of the exstng buldng stock s more crtcal. The mportance of buldng renewal for sustanable development s unquestonable. Untl 2050 about 90% of the energy consumpton of buldngs wll be caused by buldngs bult before 2000. At the same tme exstng buldngs often offer low comfort and flexibility and can no longer compete with modern buldngs. The degradaton of old neghbourhoods is often just a matter of time. Repair and soft renovatons cannot solve the problem and partal renovations are expensive and inefficient.

The ECBCS research project Annex 50: Prefabrcated Systems for Low Energy Renovation of Residential Buildings has chosen an entrely new approach to solve ths problem. Ths approach s based on the provson of a new buldng envelope that s easy to mount from the exterior and allows a lot of flexibility to improve the archtecture. Interor work s reduced to a mnmum. The concept s based on standardzed

and prefabrcated renovaton modules for faades and roofs. The project has focused on apartment buldngs wth a general need for renovaton that should not only become energy efficient, but also requre mprovements to the archtecture and lvng comfort. The nternatonal project partners are unverstes, ndustry, archtects and buldng owners. The man research partners are lsted on page 16.

Holistic Building Renewal

The ECBCS research project Annex 50: Prefabrcated Systems for Low Energy Renovation of Residential Buildings offers new solutons for the holstc renewal of apartment buldngs. Energy reducton measures are often not economc n themselves. They have to be combned wth measures that also create added value. A comprehensve renewal s an opportunty for measures that not only repar a buldng, but also mprove t for future generatons. They allow f needed mprovements to the archtecture and layout.

Project OutcomesPrefabricated Systems for Low Energy Renovation of Residential Buildings

Project leader: Mark Zimmermann, EMPA, SwitzerlandsProject duration: 2006 - 2011 Further information: www.ecbcs.org/annexes/annex50.htm

Figure 2. Constructed floor area and specific energy consumption for heating and hot water of existing buildings in Zurich and target value for sustainable renovation.

Source: Kt. Zurich


The concept that has been demonstrated s smple and clear: A new buldng envelope s placed around the exstng buldng. Ths also allows mprovements to the faades, the addton of room extensions or a new attic floor. The new buldng envelope has the qualty of new buldng constructon. It s well nsulated, physcally sound and offers excellent comfort. A new mechancal ventlaton system wth heat recovery a prerequste for low energy buldngs such as Passve-Houses - s ntegrated wthn the faade and roof modules. Optmsed constructons, efficient construction processes, high quality standards and relable budgetng are mportant features of ths concept.

High Quality Renovation Modules for Faades and Roofs

Fully ntegrated faade and roof modules have been developed n collaboraton wth European constructon companes. The hghly standardsed modules consst of lghtweght constructons, whch can be prefabrcated to any sze by constructon companes and mounted n collaboraton wth local contractors.

These modules still allow flexibility. Only the basic constructon of the modules s standardsed. The modules guarantee dmensonally correct applcaton, excellent thermal nsulaton and fire protection according to individual national standards. The szes of the modules can be

adapted easly to the exstng buldng and the final cladding is an architectural decision. This allows the archtect to concentrate on the faade appearance. Ventilated cladding systems and tradton renderng are both possble wth ths approach.

Faade modules have been developed n Austra, France, Portugal, and Swtzerland. The solutons reflect different national requirements relating to the buldng stock and the local clmate and the preferences of the constructon ndustry. These are documented in [3] Retrofit Module Design Guide.

The Swss faade modules only surround the wndow area. All detals to be co-ordnated are concentrated n ths area: wndow ntegraton, solar shadng, ventlaton ducts, and addtonal techncal servces such as IT or electrcal wrng. The spaces between wndow areas are nsulated wth mneral wool, foam nsulaton or blown-n fibres. The faade finish - ventilated cladding or renderng - s completed on ste.

The startng pont for the Austran prefabrcated solar faade module s an external solar comb, significantly improving the U-value of the new envelope. The module s based on tmber-framed constructon, nternal nsulaton, and solar comb mounted on medium density fibreboard, and covered wth glass panels. The maxmum sze s determned by the transportaton to the

Figure 3. The Swiss modules only surround the window area. The spaces between the modules are traditionally insulated.

Source: FHNW

Project OutcomesECBCS Annex 50


constructon ste. The assembly s carred out horizontally on a wooden substructure. Various other components are ntegrated for example wndows wth venetan blnds, ventlaton ducts and solar thermal collectors. Ths converts the element to a mult-functonal solar faade module. The French team has tackled the problem of renovatng apartment blocks up to 8 storeys hgh. The loads and the lnked constrants demand a strong secondary structure ndependent of the exstng one. The mult-storey module s a combnaton of a lght steel framed structure and

several layers of mneral wool. The modules are compatible with any kind of faade finish.

The Portuguese study concentrated on small sze cassette shaped modules wth nsulaton optmzed for the Portuguese clmate. The cassettes of about 1 m x 1 m sze are fully prefabrcated. A specal mountng system allows smple assemblng and dsassemblng. It s based on profiles on each side of the modules, with a system of pins and holes fitting into a support structure fixed to the existing wall.

Figure 4. Layer composition of the Austrian facade module (left), factory assembling of large faade modules (right).

Figure 5. Metal supporting structure for the French multi-storey faade module (left); test installation (right).

Source: Gap-solution GmbH

Source: Saint-Gobain Isover



3-D Measurement of Existing Buildings

Specal 3-D laser scannng technologes and photogrammetry are appled to measure the exstng buldng envelope precsely to guarantee the renovation modules will finally fit on the exstng buldng envelope. Ths technology

has been further developed for the purpose of buldng renovaton.

Laser-Scanning

The buldng s laser scanned from all sdes. Ths allows an accurate sometrc mappng of the buldng. Mllons of recorded ponts allow an accurate representaton of the buldng shape. Detaled measurements, rregulartes and dstortons of the buldng faades can be analysed and vsualsed by computer. The detaled data sets are then avalable for plannng, accurate producton of the prefabrcated elements and for mountng of the modules.

Photogrammetry

Photogrammetry can be used for buldngs wth true planar faades. It s much smpler to apply than laser scannng. The buldng can be photographed wth a good dgtal camera and the pctures are completed wth reference measurements. Specal computer programs allow normalsaton of the pctures, from whch 3-D measurements can then be taken.

Renovation Process

Exstng roofs may be completely removed and replaced by prefabrcated roof modules. Ths allows optmsed space use and the ntegraton of modern technologes such as solar panels, mechancal ventlaton, and so on. Ths opportunty s often used to create new and attractve attc apartments.

Figure 6. Portuguese cassette system: mounting system for small faade modules (left); optimisation thermal bridges (right) (source: University of Minho).

Figure 7. Visualisation of the scanning process (top) and photorealistic 3D-picture extracted from measured data (bottom).

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Laser scanning is an efficient method for obtaining 3-dimensional data of the building shape.

Source: FHNW

Source: University of Minho



In parallel, the mountng of the faade elements s beng prepared. In parallel wth the roof replacement, preparatons are requred for mountng the faade elements. If needed, exstng balcones - usually wth thermal brdges - are removed and the sze of wndow openngs adjusted. The buldng owners decde to what extent they wsh to change and mprove the exstng buldng structure. Often, the opportunty s used for optmsng the layout, for example exstng balcones are used to enlarge lvng rooms or ktchens. Ths can be done easly because a new external buldng envelope s constructed around the exstng buldng.

Next, the prefabricated faade modules need to be fixed to the existing faade. Windows and solar shadng are normally ntegrated n these modules, as are the ducts for the ventlaton system or new electrcal wrng.

If not already done, the old wndows can now be removed and the ar nlets and outlets drlled.

Finally, the inside soffits are completed and decorated. If no other nternal refurbshment s planned, the retrofit is already completed. In fact, the tenants may stay n ther apartments durng the renovaton. The dsturbance s mnmal and lasts only a few days. If needed, room enlargements, roof extensons and attached elevators can be realsed at the same tme. The elements for roof extensons can be combned wth faade elements.

Market Analysis and Concept Development

The exstng buldng stock has been analysed and the requrements and possbltes for advanced low energy retrofit then evaluated. The study has produced a buldng typology that provdes basc data for the evaluaton of the renovaton potental of the exstng buldng stock. It s also used for the definition of retrofit strategies and the envelope characteristics of specific building types [6] [7]. Building simulations have been

Figure 8. Photogrammetry allows for normalisation of digital photos, which can then be used for measurement extraction.

Sources: Architect K. Viridn, Zurich (left), gap-solution GmbH, Austria (right).

Sources: Architect K. Viridn, Zurich (left), gap-solution GmbH, Austria (right).

Figure 9. Mounting of pre-fabricated roof and faade elements .



performed to ensure the proposed renovatons wll meet the energy goal of 30 to 50 kWh/m per year [9].

Technology Development

The establshment of buldng typologes s mportant for the development of standardsed faade and roof modules wth a large applcaton potental. So far, the prefabrcaton technologes for faade and roof modules have been developed and tested. Specal attenton was gven n the project not only to buldng physcs, but also to fire protection and logistics. The work resulted n the development of four dfferent renovaton modules [3].

Specal attenton was gven to laser scannng methods for buldng measurements. The scannng process and the post treatment of

data were further developed by the Unversty of Applied Sciences North-western Switzerland n collaboraton wth archtects and ndustry partners. Due to this precise and efficient measurement methodology, good technologcal progress n plannng, producton and mountng s expected to result from the project.

Demonstration Projects

Demonstraton projects are mportant to prove the practcal feasblty of the concept. To ths end, sx demonstraton stes ncludng 364 renovated apartments have been successfully completed n Austria, the Netherlands, and Switzerland. The energy consumpton of all renovated buldngs was reduced by 80% to 90%. In fact, the goal of 30 to 50 kWh/m per year for heatng and domestc hot water was easly acheved. Solar nstallatons on most of the buldngs are further

Figure 10. Research steps of ECBCS Annex 50: from renovation concept to planning tool.

Figure 11. Building typologies were established to adapt the concept to the market need and to quantify the application potential.

Sources: CCTP.



reducng the energy consumpton to close to zero.

Further demonstraton buldngs are expected to be completed after termnaton of the project. The demonstraton projects and case studes are documented in [4] Building Renovation Case Studies.

Planning Tools

Successful renovaton of a buldng s not only dependent on techncal ssues. The development of an optmal renovaton strategy s equally mportant. For ths purpose, the electronc Retrofit Advisor was developed. This allows the evaluaton and comparson of the economc,

envronmental and socal mpact of the exstng stuaton, along wth those of dfferent renovaton strategies [2]. Besdes a number of renovaton strateges, t also allows the user to consder repar work only as a minimal solution and the demolition and reconstruction of the building as a maximal soluton. The tool has an nterface allowng easy use by non-specialists. It works with predefined building types and renovaton scenaros that may be adjusted to the real stuaton of nterest.

Figure 12. Swiss apartment building in Zurich, before and after renovation with prefabricated roof and faade elements. The renovation includes a new attic floor, living room extensions with old balconies, new enlarged balconies.

Figure 13. Austrian apartment building in Graz, before and after renovation with prefabricated faade elements. The renovation includes solar faade elements, living room extensions with old balconies, new elevators.

Sources: Architect B. Kmpfen, Zurich.



Figure 14. Renovation scenarios of typical buildings are used as a reference

Figure 15. Examples of Retrofit Advisor results. They include a financial, environmental and social evaluation of various renovation scenarios



[1] Peter Schwehr, Robert Fischer, Sonja Geier, Retrofit Strategies Design Guide, ISBN 978-3-905594-59-1, March 2011

[2] Mark Zimmermann, Hans Bertschinger, Kurt Christen, Walter Ott, Yvonne Kaufmann, Stefan Carl, Retrofit Advisor, Beta-verson, March 2011

[3] Ren L. Kobler, Armin Binz, Gregor Steinke, Karl Hfler, Sonja Geier, Johann Aschauer, Stphane Cousin, Paul Delouche, Franois Radelet, Bertrand Ruot, Laurent Reynier, Pierre Gobin, Thierry Duforestel, Grard Senior, Xavier Boulanger, Pedro Silva, Manuela Almeida, Retrofit Module Design Guide, ISBN 978-3-905594-60-7, March 2011

[4] Sonja Geier, Karl Hfler, David Venus, Nadia Grischott, Reto Miloni, Mark Zimmermann, Chiel Boonstra, Building Renovation Case Studies, ISBN 978-3-905594-61-4, March 2011

Further project-related publcatons are:

[5] Mark Zimmermann: Annex 50 Flyer, IEA ECBCS Annex 50 Prefabricated Retrofit, March 2011 [6] Peter Schwehr, Robert Fischer, Building Typology and Morphology of Swiss Multi-Family Homes 1919 1990, January 2010

[7] Bertrand Ruot, French housing stock built between 1949 and 1974, October 2010

[8] Bertrand Ruot, Elements of morphology of collective housing buildings constructed in France between 1949 and 1974, October 2010

[9] Gerhard Zweifel, Retrofit Simulation Report, March 2011

Further Information

Project Reports

www.ecbcs.org/annexes/annex50.htm




Category Organisation

Austra AEE - Institute for Sustainable Technologies (AEE INTEC)

Czech RepublcEnvros s.r.o.

Brno Unversty of Technology, Insttute of Buldng Servces

France

Centre scentfque et technque du btment CSTB

Centre scentfque et technque du btment CSTB EDF

AETIC, ALDES, Vinci Constructions

Netherlands Energy Research Centre of the Netherlands ECN

Portugal Porto Unversty, Faculty of Engneerng

Unversty of Mnho, Cvl Engneerng Department, Constructon and Technology Group

Sweden CNA Arkitektkontor AB

Energy and Buldng Desgn, Lund Insttute of Technology

Swtzerland

Lucerne Unversty of Appled Scences and Arts, Technology and Archtecture

University of Applied Sciences Northwestern Switzerland, School of Archtecture, Cvl Engneerng and Geomatcs

Swss Federal Laboratores for Materals Scence and Technology Empa, Buldng Scence and Technology Laboratory

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