Innovation: Industrialised energy efficient retrofitting of resident buildings in cold climates

Last update: 03.09.2013
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Keywords: 
energy saving, environmental protection
The vision of E2ReBuild is to transform the retrofitting construction sector into an innovative, high-tech, energy efficient industrialised sector. The project implements research and develop new retrofitting solutions regarding planning, design, technology, construction as well as operation and use of buildings. The E2ReBuild results are demonstrated in projects in Finland, Sweden, the Netherlands, France, Germany and the UK.

Today, the building industry in Europe is characterised mainly by on-site production, which may be inefficient with regard to cost and production time. The sector is negatively associated with poor quality as well as an unsafe and unhealthy working environment. Facing the enormous need for reduced energy use and renovation of buildings from the post-war era, these problems are reasons why an industrial construction process for retrofitting is needed. Using well-designed, prefabricated elements, for example, can drastically reduce the production time, and thus possibly also cost of retrofit projects as well as minimise the social disturbance for tenants.

E2Rebuild is a collaboration project between 20 partners in eight European countries. Architect bureaus, construction- and housing companies as well as universities and research institutes participate in the project.


E2ReBuild aims to
- investigate, promote and demonstrate cost effective and advanced energy efficient retrofit strategies that create added value for existing apartment buildings and endorse end-users to stay and build a dynamic society
- to establish and demonstrate sustainable renovation solutions that will greatly reduce the energy use
- to create a holistic industrialised process that minimises technical and social disturbance for tenants and facilitates energy efficient operation and use of the buildings including encouraging energy efficient behaviour

This will be achieved by transferring technical innovations and advances from research to application and wide use. It will also change current inefficient way of doing business to a win-win situation for all involved actors.

PROJECT GOALS:

E2ReBuild investigates, promotes, and demonstrates, cost-effective and advanced energy-efficient retrofit strategies that create added value for existing apartment buildings. The vision of E2ReBuild is to transform the retrofitting construction sector from the current craft and resource based construction towards an innovative, high-tech, energy efficient industrialised sector. We believe that industrial construction is part of the solution to both energy-efficient retrofitting and improved quality of life for people. An innovative, industrialised process can create living environments with good architectural values and buildings with very low energy use, at a low cost.

In E2Rebuild we adress these problems in order to speed up the development towards an energy efficient construction and building sector.

The aims of E2ReBuild are:
- To investigate, promote and demonstrate cost effective and advanced energy efficient retrofit strategies that create added value for existing apartment buildings and endorse end-users to stay and build a dynamic society
- To establish and demonstrate sustainable renovation solutions that will reduce the energy use to fulfil at least the national limit values for new buildings according to the applicable legislation based on the Energy Performance of Buildings Directives (for 2010) and to reduce the space heat use by about 75%.
- To create a holistic industrialised process that aims to minimise technical and social disturbance for tenants and facilitates energy efficient operation and use of the buildings including encouraging energy efficient behaviour.
The research and technology development work of E2ReBuild cover the whole renovation process, from early planning to operation of the building following completion and the behaviour of the people living there.

The RTD work is closely interlinked with the demonstrations, both as case studies for investigating sustainable renovation solutions and for demonstrating and promoting new renovation strategies.
- Innovation in planning and design
The aim is to provide concepts and solutions for the retrofitting process based on industrialised construction systems – from prefabrication technologies, optimised digital workflow and survey to off-site production and on-site assembly.
• Develop holistic retrofit strategies with high added value and high replication potential for each relevant building type.
• Create a formalised process for early integration of production planning, cost estimation, design and socio-architectural parameters.
• Elaborate on different types of collaboration models. Retrofitting strategies will be matched with the requirements of users and different ownership structures as well as different financing schemes.
• Create a decision tool which allows evaluation of simple repair measures, sustainable retrofitting concepts or building reconstruction in an early design stage.
• Establish a practically driven tool bringing social and architectural processes together, enabling energy-efficient refurbishment to bring added value in order to enhance the good features and reduce the bad features of buildings and areas.
• Generate a planning and design process that will benefit from communication between tenants, architects, contractors, real estate owners and municipal personnel, making the same cost meet both the technical and social needs.


- Innovation in technology and construction
The aim is to provide concepts and solutions for the retrofitting process based on industrialised construction systems – from prefabrication technologies, optimised digital workflow and survey to off-site production and on-site assembly.
• The manufacturing-building industry will move a significant proportion of the activities from the construction site to a factory environment, where accident incidence rates are dramatically lower. E2ReBuild will thus contribute significantly to good working conditions and enhance the safety of workers (an expected reduction in serious injuries of 90% is anticipated) as well as increasing the attractiveness of the industry to workers, including women, through the creation of new working environments (factories) and a new, knowledge-based service industry.
• E2ReBuild will contribute substantially to the improvement of a comprehensive retrofitting process on the basis of a frictionless workflow chain from survey and off-site production to on-site assembly. Key issues are the optimisation and standardisation of the digital workflow throughout the whole process chain, the application of replicable retrofit solutions on an industrial level and coherent assembly methods.
• Develop solutions for added valued prefabricated building envelopes, including the integration of HVAC technologies and solar active components on the basis of existing construction methods (e.g. timber).
• Significantly advance the production methods from the construction site to a factory environment with better working conditions in a safer and more attractive working environment (factories) and a new knowledge-based service industry, including greater opportunity for the involvement of women.
• Test these approaches with the realisation of seven challenging demonstration projects.


- Innovation in operation and use
The aim is to develop and follow up a detailed metering/monitoring programme for the buildings’ energy performance to verify target energy use and to influence the energy behaviour of clients and stakeholders.
• E2ReBuild will establish guidelines for monitoring the energy use and the indoor environment by suggesting measuring methods, metering equipment and data assembly.
• Establish procedures for questionnaire investigations and meetings with tenants to obtain their views on indoor environment conditions, energy behaviour, attitude pre- and post-retrofit to energy-saving measures etc.
• Suggest systems for monitoring and visualisation of the effect of tenant’s behaviour on energy use in order to encourage energy-saving behaviour.
• Establish procedures for dealing with complaints from tenants about the indoor environment and energy use.
• Establish routines for continuous follow-up of the indoor environment and energy use through measurements in buildings/apartments.
• Suggest effective routines for operators and users to reduce energy use during operation and use of the buildings.


- Demonstration projects
The aim is to create an industrialised platform for energy-efficient retrofitting by integrating the results achieved in the demonstrations as well as the supporting RTD work.
• Create best practice examples for the construction sector based on innovation and competitiveness.
• Bring the innovative technologies and systems from the research prototype level to a larger scale through these full-scale tests, thus making large-scale market use possible before 2020.
• Contribute to an increased demand for higher performance standards and regulations in the construction sector, on a European, national and local level.
1945WBGproduction350.jpg
Assembling Of The New, Prefabricated Facade Elements In The Factory. The Elements Are Based On Timber Framed Panels Including Windows, Insulation As Well As The Cladding. photo: Frank Lattke (from Ec2rebuild Website)
  • 1945WBGproduction350.jpg
  • wpchart500.jpg

This innovation is the result of the project

Title: Industrialised Energy Efficient Retrofitting Of Resident Buildings In Cold Climates

Acronym: 
E2REBUILD

Runtime: 
01.01.2011 to 30.06.2014

Status: 
completed project

Organisations and people involved in this eco-innovation.

Please click on an entry to view all contact details.

NCC AB

Field: Engineering, Construction (Sweden)

Role in project: Project Coordination

Contact person: Ms. BERGLUND Birgitta

Website: http://www.ncc.se

Phone: +46-858553326

Contact

AALTO-KORKEAKOULUSAATIO

(Finland)

Contact person: Prof. HEIKKINEN Pekka

Website: http://www.aalto.fi/en

Phone: +358-505174727

Contact

APARTMENT BOSTAD VÄST

Field: Real estate (Sweden)

Contact person: Mr. ERIKSSON Ulf

Website: http://www.apartmentbostad.se/

Phone: +46-035100124

Contact

EIDGENOESSISCHE MATERIALPRUEFUNGS- UND FORSCHUNGSANSTALT

(Switzerland)

Contact person: Mr. ZIMMERMANN Markus

Website: http://www.empa.ch/

Phone: +41-448234178

Contact

GALLIONS HOUSING ASSOCIATION

Field: Real estate (United Kingdom)

Contact person: Mr. HILL Daniel

Website: http://www.gallionsha.co.uk

Phone: +44-2083084191

Contact

GUMPP & MAIER GMBH

Field: Construction (Germany)

Contact person: Mr. GUMPP Alexander

Website: http://www.gumpp-maier.de/

Phone: +49-8272998512

Contact

GWG GEMEINNÜTZIGE WOHNSTÄTTEN- UND SIEDLUNGSGESELLSCHAFT MBH

Field: Real estate (Germany)

Contact person: Ms. ENGLERT-FRIEDRICH Dagmar

Website: http://www.gwg-muenchen.de/

Phone: +49-8955114251

Contact

HOCHSCHULE LUZERN

Field: Scientific research and development, Education (Switzerland)

Contact person: Prof. SCHWEHR Peter

Website: http://www.hslu.ch/

Phone: +41-3493348

Contact

LICHTBLAU ARCHITEKTEN GBR

(Germany)

Contact person: Mr. LICHTBLAU Florian

Website: http://www.lichtblau.de/

Phone: +49-896427870

Contact

MOSTOSTAL WARSZAWA SA

Field: Construction (Poland)

Contact person: Mr. ZACH Juliusz

Website: http://www.mostostal.waw.pl/index.php

Phone: +48-225485625

Contact

NCC RAKENNUS OY

Field: Construction (Finland)

Contact person: Mr. EKLUND Esa

Website: http://www.ncc.fi/

Phone: +358-105075774

Contact

OFFICE PUBLIC D'AMENAGEMENT ET DE CONSTRUCTION DE L'ISERE

(France)

Contact person: Mr. JEHL Benoît

Website: http://www.opac38.fr/

Phone: +33-476205074

Contact

POHJOIS-SUOMEN OPISKELIJA-ASUNTOSAATIO

(Finland)

Contact person: KUMPULAINEN Ulla

Website: http://www.psoas.fi/en/

Phone: +358-447573152

Contact

SCHWORERHAUS KG

(Germany)

Contact person: Mr. WALCHER Christoffer

Website: http://www.schwoererhaus.de

Phone: +49-738716161

Contact

SP SVERIGES TEKNISKA FORSKNINGSINSTITUT AB

Field: Scientific research and development (Sweden)

Contact person: Dr. CAPENER Carl-Magnus

Phone: +46-105165852

Contact

STICHTING ALLEEWONEN

Field: Real estate (Netherlands)

Contact person: Mr. VAN REDE Robert

Website: http://www.alleewonen.nl/

Phone: +31-165558888

Contact

TECHNISCHE UNIVERSITAET MUENCHEN

Field: Scientific research and development, Education (Germany)

Contact person: Ms. RONCHETTI Ulrike

Website: http://www.tu-muenchen.de

Phone: +49-8928922616

Contact

TRECODOME BV

Field: Construction (Netherlands)

Contact person: Mr. BOONSTRA Jan Michiel

Website: http://www.trecodome.com/en/

Phone: +31-165538674

Contact

WBG AUGSBURG

Field: Real estate (Germany)

Contact person: Mr. WINTERHOLLER Jürgen

Website: http://www.wbg-augsburg.de/

Phone: +49-82150447020

Contact

WHITE ARKITEKTER AKTIEBOLAG

Field: Architecture (Sweden)

Contact person: Mr. MALM Gustav

Phone: +46-855602349

Contact