Community Research and Development Information Service - CORDIS


BERTIM Report Summary

Project ID: 636984
Funded under: H2020-EU.3.3.1.

Periodic Reporting for period 1 - BERTIM (Building energy renovation through timber prefabricated modules)

Reporting period: 2015-06-01 to 2016-11-30

Summary of the context and overall objectives of the project

The environmental impact of the European building stock is widely acknowledged (40% of the overall energy consumption, 1/3 of CO2 emissions, more than 50% of all materials extracted from earth ...). So, to meet the objectives of the Kyoto Protocol, it is necessary to concentrate on improving the energy-inefficient building stock, and new renovation scenarios are needed, increasing the current retrofitting rate (1,2%) up to 2,9%.

In addition, the EU in the Sustainable Consumption and Production and Sustainable Industrial Policy Action Plan relies on the safeguarding and reuse of existing buildings and structures as key factor for the resource efficiency as well as the promotion of a stronger use of renewable resources like timber, timber products and other biogenic building products in construction.
The use of prefabricated systems for the energy efficient building renovation allows the reduction of on-site works, minimizing the consumption of raw materials and increasing the energy and resource efficiency in the construction sector. In this context, timber and timber based building materials gain added importance due to their low primary energy demand from cradle to grave and carbon-footprints. In addition, a digital work flow of the information from design to manufacturing which is currently very manual, inaccurate and tedious will increase the efficiency of the renovation process, reducing the time and cost.

In this context, the approach of BERTIM to address these challenges is: to develop a timber based on prefabricated system for building deep energy efficient renovation, and integrated it in a holistic renovation process based on customized mass manufacturing methodologies supported by building information models (BIM). For this purpose, BERTIM is developing a prefabricated solution in timber, which provides the opportunity to renovate improving energy performance, air quality, aesthetics, comfort, and property value at the same time, while ensuring low intrusiveness during renovation works, as well as a friendly computer based tool (RenoBIM). The tool is based in a digital data flow in BIM, which enables reduction of renovation operation time and make more efficient the renovation process, through the customization of the mass production, from data gathering, designing, manufacturing and installation.

Project developments will be validated in 3 complementary case studies of renovation in buildings across Europe.

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

During the first 18 months of BERTIM project, activity has principally been focused on the following tasks:

•Definition of the requirements of the modules and the methodology of BERTIM renovation process

•Taking into account the specifications of the 3 manufacturers, design of prefabricated modules in timber for a deep building energy efficient renovation. 4 products have been designed:
-2D envelope module without installation
-2D envelope module with installations containing ducts and pipes to distribute the services (heating, cooling, ventilation and DHW) along the facades to the dwellings.
-3D installations module (heating, cooling, mechanical ventilation, DHW with solar panels) to be located at the roof.
-3D residential module to be located at the roof in order to achieve a new floor which could allow finance the investment.

•Validation of the system through the installation of a prototype, modules with and without installations in KUBIK, a real scale research infrastructure. The energy consumption reduction of the system and the durability is being currently assessed and on-site assembly and installation processes have been already validated.

•Definition of the architecture of RenoBIM platform, which includes the decision support tool, the configurator and the different data repositories.

•Development of guidelines for 3D acquisition of the building template prior to renovation with BERTIM module, based on the application in Demo building in Charité sur Loire (France).

•Elaboration of the Business Plan. It includes the description of the European construction market, the most prospective markets for the exploitation of the BERTIM solution, as well as an introduction to business models development concept that is the focus of the next reports.

•Formulation of the Exploitation and Continuity Plan focused on risk assessment identifying the most important barriers that can limit opportunities for commercialization of the main BERTIM exploitable results, on the definition of measures and methodologies for exploitation of BERTIM results and on protection of the background contributed by the project partners.

Additionally, the dissemination and communication activities directed mainly to the target groups, which are scheduled for the whole project duration, have already started. In this sense, a dissemination Plan, has been developed and included in the corresponding deliverables. It serves as a background and framework document supporting all dissemination and communication activities performed within the project BERTIM. This document describes overall dissemination and communication strategy: target groups, messages and channels and well as identify all Partners’ communication activities.

Case studies in Spain, France and Norway demonstrating BERTIM solutions are mainly scheduled for future stages in the project. Nonetheless, some demonstration works have already been performed in the selected building in Charité sur Loire (France).

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

An automated renovation process in being implemented in BERTIM project, based on the utilisation of energy efficient prefabricated modules in timber and recyclable materials, with high standardization. The use of BIM for information exchange among the stakeholders is proposed, in order to reduce the current time consuming processes. Also, the computer based tool (RenoBIM) in BIM developed in BERTIM is helping to implement the mass manufacturing methodology from design to manufacturing, which allows a digital data flow among the involved stakeholders. The tool will allow the interoperability among sectorial software used by many stakeholders reducing renovation operation.

By achieving BERTIM project objectives, relevant improvements to economy, environment and society are expected. As regards to the Environmental impact, according the official data about energy consumptions and greenhouse emissions in buildings energy retrofitting needs, it is estimated that with the strategies, technologies and retrofitting techniques that BERTIM is developing , it could result in a reduction of 50% of the global energy consumption of the buildings compared with the current performance. It could result in an estimated reduction of 0,052 %of overall energy consumption and 0,043 % of global carbon emission. The expected social impact is mainly linked to the creation of new direct high level jobs and indirect jobs in in the field of energy refurbishment of buildings, as well as to the improvement of the quality of life of the citizens living in cities, reaching comfort and indoor comfort conditions in the occupant requirements. Finally, the economic impact of the project could be addressed thorough the Economic saving associated to reduction of energy consumption, economic growth due to a new activity and indirect benefits, as the dynamisation of historic cities and unoccupied and neglected urban settlements.

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