GROOF experts led by IfaS worked on the design of the pilots from the beginning. Today, IfaS produced a very detailed and technical report about the design of ULG and IFSB's pilots. Have a look at the data and the technical choices made by the partners in this article. Read More
GROOF - Greenhouses to Reduce CO2 on Roofs
The GROOF (Greenhouses to reduce CO2 on Roofs) project is an innovative cross-sectoral approach to reduce CO2 emissions in the construction and agriculture sectors by combining energy sharing and local food production.
The idea is to use rooftop greenhouses as a tool to:
- Recover actively (use of the ventilation system) and passively (insulation effect) the heat produced and otherwise lost by the support building in a horticultural production installed in a rooftop greenhouse,
- Collect the CO2 produced by human activity and the activities of the support building to feed the plants,
Practically, the project facilitates the emergence of this type of greenhouse on the market by demonstrating and disseminating good practices to actors in the building and agricultural sectors that are favourable to the development of profitable and functional economic and social models.
The project specifically aims to:
- Identify and reduce market access barriers (urban planning rules, technical regulations, insurance, etc.): GROOF teams studied the practices in different NWE countries as long as the local regulations. The interview of several pioneers such as BIGH (Belgium), Urban Farmers (The Netherlands), Universitat Autònoma de Barcelona (Spain) and others provided valuable information that will be used to produce guidelines for early adopters struggling with the implementation of CO2-cutting rooftop greenhouses.
- Support the first users in the implementation of their project: 10 early adopters have been selected through an open call and are currently coached by GROOF experts. The success of those 10 different profiles will demonstrate the relevance of several business models involving rooftop greenhouses and is expected to inspire others. You can discover the early adopters here.
- Experiment and demonstrate the effectiveness of the technology for a representative number of business and social models: GROOF is investing in four pilot projects, designed to prove the effectiveness and sustainability of models related to different types of buildings. They are located in France, Belgium, Luxembourg and Germany. You can discover them here.
The results of each activity will be openly shared on our international community on the online platform Construction21 where regional and national public authorities, SMEs and large enterprises, research centres and general public are invited to interact.
This community also host a mapping of existing and planned rooftop greenhouse projects in the world. Each project leader is invited to fill in the information of his or her project in order to share it with the world and benefit from the community’s feedback.
Université de Liège, Gembloux Agro-Bio Tech
7 Place du 20 août
ASTREDHOR: Institut Technique de l’Horticulture
44 rue d’Alésia
Centre Scientifique et Technique du Bâtiment
88 avenue Jean Jaurès
Hochschule Trier Institut für angewandtes Stoffstrommanagement
9926 Campus Allee
69 rue de la Station
Braine le Comte
Cluster Eco Construction
1C Rue Eugène Thibaut
Universitat Autònoma de Barcelona
Ed. Rectorat Campus de la UAB s/n
Cerdanyola del Vallès
Les Jardins de Gally
Ferme de Vauluceau Route de Chèvreloup
Institut de Formation Sectoriel du Bâtiment
5 Zone d’Activité Economique Krakelshaff
Conseil de Développement Economique pour la Construction
5 Zone d’Activité Economique Krakelshaff
|Conseil de Développement Economique pour la Construction||
5 Zone d’Activité Economique Krakelshaff
|Université de Liège, Gembloux Agro-Bio Tech||Haïssam Jijakliemail@example.com||Belgium|
|EBF GmbH||Franz Schreierfirstname.lastname@example.org||Germany|
|ASTREDHOR: Institut Technique de l’Horticulture||Guillaume Morel-Chevilletemail@example.com||France|
|Centre Scientifique et Technique du Bâtiment||Maeva Sabrefirstname.lastname@example.org||France|
|Hochschule Trier Institut für angewandtes Stoffstrommanagement||Thomas Antonemail@example.com||Germany|
|Groupe One||Marc Lemairefirstname.lastname@example.org||Belgium|
|Cluster Eco Construction||Hervé-JAcques Poskinemail@example.com||Belgium|
|Universitat Autònoma de Barcelona||Xavier Gabarrellfirstname.lastname@example.org|
|Les Jardins de Gally||Nicolas Brulardemail@example.com||France|
|Institut de Formation Sectoriel du Bâtiment||Christophe Mélonfirstname.lastname@example.org||Luxembourg|
5 Rooftop Greenhouse Projects coached by GROOF until June 2021
Among the 10 projects coached since 2019, the jury of the Groof project has selected 5 pioneer projects for the second phase of coaching in the implementation of their rooftop greenhouse. The partners of the Groof project, European experts in construction, energy, production and business, will extend their individual coaching in Belgium and France until June 2021.
Through several thematic days and individual coaching sessions, this coaching enables project leaders to anticipate production and construction in order to avoid certain additional costs, to discover a variety of economic models and activities, to network and develop partnerships, or to settle down in a given territory by including stakeholders from the very beginning of the project design.
10 projects coached since 2019
From September 2019 to September 2020, Groof has already supported 10 rooftop greenhouse projects for a total of 175 hours of individual coaching and 5 on-site visits to help them build, develop and implement their project. These projects bring together different greenhouse techniques (hydroponic greenhouses, aquaponics, soil-based vegetable gardens, etc.) as well as different types of projects (educational, social, private, etc.) but all of them focus on ecology and the respect for
DISCOVER THE EARLY ADOPTERS - PROJECTS COACHED BY GROOF
Location: Kirchberg (Luxemburg)
Adhoc habitat participatif is a non-profit in Luxemburg aiming at providing affordable housing for a long-term stable community. With their rooftop greenhouse, they will strengthen social cohesion among the residents by creating connection to the environnement.
Location: Brussels (Belgium)
The goal of the greenhouse « Green(s)pote» led by Les amis de l'Entrepote in Brussels (Belgium) is to enable the neighbours to garden all year long and produce vegetables such as tomatoes, peas, salads, herbs, etc. A part of the production will directly go to the kitchen of Belgobon, the restaurant just below the Garden.
Location: Tour (France)
"J'habite mon jardin" project was created by Tours Habitat, the social housing organization of Tours city. The greenhouse is designed as a tool for social inclusion. The production of vegetables and fruits is mainly intended for future inhabitants of the site. The production part will be supplemented by training, animation, communication towards a wide audience, from students ‘groups to urban farmers.
Location: Lille (France)
Yncrea engineering school wants to create the first future city’s European demonstrator of food & agriculture. The figurehead of this project will take place in an historical building of the city of Lille called « Palais Rameau » just next to Yncrea’s actual campus.
In this 3000 square meters space, Yncrea will create different areas related to local food production and transformation in the city. Yncrea will create different areas including: a Biohacking space for project based pedagogical approaches (including an urban farm), a food factory, a teaching center, an innovative showroom, a start-up incubator, a vertical farming experimental unit, an open space for the citizens.
Location: Namur (Belgium)
“Les Petits Poucets” will pursue two objectives, firstly it will produce and sell in the city center of Namur healthy, fresh and tasty products, and secondly it will provide training cycles for the project developers.
Location: Paris (France)
Cueillette Urbaine is a company that works for the development of urban farming and its benefits for cities. Their goal is to design, install and operate productive and ecological urban farms. They want to create a turnkey urban farm system that consumes little energy and is totally environmentally friendly while being productive. Through Culina Hortus, they plan to build up the first aquaponic and bioclimatic greenhouse farm in France on the rooftop of the 12th floor of a Parisian building (PARIS 12).
Location: Liège (Belgium)
Novacitis is willing to create synergies through the Four food-related units that they will be built up in the former carpentry of the City of Liège : a roof production area, a cafeteria, a local food store and a food processing unit. It will welcome small groups for awareness-building activities offered to local schools and during team-building events organized for enterprises.
Location: Nantes (France)
This project of 400 square meters space is located in Nantes, France, on the roof of an existing 24-apartments residential building. It will offer to inhabitants a new volume to be invested for various common activities: shared garden, urban agriculture experimentations, educational venue for the neighbourhood. The architectural project transforms the image of a social housing neighbourhood.
The SYMBIOSE core project team is composed of the building owner Nantes Métropole Habitat (NMH), Greenhouse-on-top (former Ecotropy), Claas architects and SCE. NMH is the leading coordinator. Greenhouse-on-top is in charge of the coordination of R&D activities.
Location: Brussels (Belgium)
Pousses & Vous! has the vocation to develop pedagogical projects in primary and secondary schools, in tight collaboration with the teachers, through field role-playing situations activities. They aim at contributing to the education and awareness of young people on the importance of supporting smart local activity to meet demographic challenges while respecting the environment and being involved in a social approach.
The core business of this rooftop including a greenhouse at See you in Brussels, Belgium, consists in school visits while the harvests represent the by-products socially valued through donations to caritative organizations.
Location: Arcueil (France)
The project consists of developing a multifunctional urban greenhouse and a common vegetable garden located on the rooftops of apartment buildings available to the residents.
The implementation of this project was driven by the real estate developer Axone Promotion who wants to provide the residents of its buildings with new common areas in connection with food production. Toits Vivants is an association which aims to develop integrated and participatory edible ecosystems.
Knowledge and expertise in construction design, stability, materials, technical assessment, calculation, risk analysis. Specialties in roofing and structure. Knowledge in material behaviour and innovative combination. Skills in technical project analysis.
Analysis of the energy flows of the existing building and the project itself, counselling for techniques and measurements to reduce energy demand and implement existing flows to reduce CO2 emissions.
The plant production expertise consists both in the design of plant production system and the management of the production. This includes knowledge in growing system, plant nutrition, light, pest and disease management, practical organisation of the work.
- Economic viability;
Emphasis on the viability and durability of the candidates’ project, with the respect of the candidates’ vision. This includes: the stakeholders, the cultural & geographical specificities, the social & environmental involvement, the competition, etc.
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Four Pilot Projects
The GROOF project is investing in four pilots, designed to prove the effectiveness and durability of the models related to different building types, in Belgium, Germany, France and in Luxembourg.
Read more on each project below.
→ Fermes de Gally - Pilot
Urban roofs remain a little exploited space on which agriculture can develop and provide sustainable solutions to food, economic and climate issues in the city. A new stage in this urban agricultural development is therefore to create greenhouses on the roof that are totally integrated into the building's flow: in particular heat, water and CO2.
In this context, our greenhouse project on the roof of the Ferme Urbaine de St Denis consists of the construction and operation of a productive vegetable garden of 360 m² on the roof of the office and workshop building of the Ferme de St Denis, an urban farm run by les Fermes de Gally. This project will produce hydroponic and substrate agricultural products sold locally, in addition to farm production in the ground.
The greenhouse will have to work in synergy with the support building. Its location on the roof offers the advantage of enhancing the flat roof surface and thus preserve the floor space for the activities of the Kersanté Farm of St Denis (FKSD in the following). This feature will also allow it to easily connect to the heating and ventilation network of the building to recover heat and CO2, contained in the stale air, necessary for the cultivation of plants.
Follow the project of Construction21: Ferme de Gally - FRANCE
→ Université de Liège - Pilot
The urban greenhouse of the TERRA building is part of the WASABI platform which brings together in one location all the innovative agricultural production systems adapted to the city and in dialogue with biodiversity. The platform and the urban greenhouse is an institutional project supported by Gembloux Agro Bio-Tech and ULiège.
The urban greenhouse will have an area of 198m² and will be divided into three compartments dedicated to research, teaching and demonstration of innovative systems adapted to urban agriculture. The main compartment (132 m²) will be dedicated to research only and will host experiments related to urban agriculture (hydroponics, aquaponics and bio-ponics). The second compartment will be dedicated to the demonstration and experimentation of innovative systems, both for students and for other publics. The third compartment will be used as technical hall. The greenhouse will reproduce conditions suitable for temperate crops such as lettuce and tomato. This greenhouse will be characterized by an accurate climate control, the production system will be modular in order to grow different crops.
Follow the project of Construction21: Université de Liège - BELGIUM
→ EBF - pilot
The ebf pilot is a Sunlight greenhouse, which is a modern approach to the classical lean-to concept. It is a greenhouse which is focused on minimal energy demand and utilizing existing energy flows to achieve a year-round operation. In combination with an internally mounted photovoltaic shadowing system, the greenhouse is becoming the worlds first plus energy greenhouse.
The pilot will be installed on an old packaging hall of a former nursery which is now being reinstated by ebf to show how a futureproof and sustainable horticulture business can look like. It will unite modern plant production technics with a social aspect of creating a community starting from an early age. The rooftop greenhouse will be implemented in the whole operation harboring specialized plants like chili peppers which can be harvested all year. Furthermore, the schools and kindergardens of the surrounding area will participate in the operation. Here, they have the possibility to learn and share the knowledge for food production. This gives the opportunity to help people reconnect with food production and give them back the responsibilty for their own food security.
Follow the project of Construction21: EBF - GERMANY
→ SOTA - Pilot
The IFSB pilot project will be installed on the extension of its company restaurant. The size of the greenhouse will be 18 x 20 m. The rooftop greenhouse will be located near the training site and will house plants that can be used directly in the restaurant below.
Here, the idea is to integrate a food production greenhouse above a restaurant. A reconnection between local food production and people in order to raise awareness about their food. In addition, a corridor will allow visibility over the production area without disturbing it.
The connection to the building to recover CO2 and heat makes sense for the construction sector. Indeed, this sector in Luxembourg will thus be able to have a project integrated into the building allowing a recovery of CO2, a future challenge for this sector.
GROOF project is coordinated by the CDEC (Conseil pour le Développement Economique de la Construction), with the support of the INTERREG NWE programme, and carried out with eleven partners (public and private) from Luxembourg, France, Belgium, Germany and Spain.
Each partner brings valuable skills and knowledge to the project such as construction process and methodology, building energy management, urban agriculture development, knowledge of plants and cropping systems, entrepreneurial skills, socio-economic skills, etc.
Find the partners interviews here.
|Company||Country||Field of expertise|
|Conseil de Développement Economique pour la Construction||Luxembourg||Building/construction|
|ASTREDHOR: Institut Technique de l’Horticulture||France||Agro-socio-eco|
|Centre Scientifique et Technique du Bâtiment||France||Energy/Technic - Building/construction|
|Hochschule Trier Institut für angewandtes Stoffstrommanagement||Germany||Energy/Technic - Agro-socio-eco|
|Cluster Eco Construction||Belgium||Building/construction|
|Universitat Autònoma de Barcelona||Spain||Energy/Technic - Agro-socio-eco|
|Les Jardins de Gally||France||Energy/Technic - Agro-socio-eco|
|Institut de Formation Sectoriel du Bâtiment||Luxembourg||Building/construction|
On September 23rd, Groof project participated in the inauguration of the Walloon platform in urban agriculture, WASABI, in Gembloux at the Centre of Research in Urban Agriculture (CRAU) of the University of Liège! This event has gathered over 200 specialists of urban agriculture, online and offline, for a full day of master classes and guiding tours of the different sites. In the presence of His Majesty King Philippe of Belgium and the Minister of Agriculture and Economy, Willy Borsus. Read More
Part I: Reducing the energy loss in the building. Installing a rooftop greenhouse not only gives us the opportunity to build a future proof and reliant urban farm, it also helps a lot with saving energy in multiple areas in the support building and the area around the greenhouse. This is the first article in a series of three parts, concerning mainly the energy loss reduction in the support building due to the greenhouse installation. The next two parts will cover the circular economy of material flows and the greenhouse as an energy collector. Read More
Article paru dans le journal Le Soir en Belgique - Le projet européen « Greenhouse to reduce CO2 on roofs » (Groof) vise à réduire les émissions de CO2 en milieu urbain en combinant récupération de l’énergie et production locale de végétaux dans une serre sur toit – une zone rarement exploitée sur les bâtiments en ville. Read More
Who do you think can benefit from the lessons learned from the GROOF project? The most benefits from the GROOF project can be obtained for professional or semi-professional food producers who are already established and can fall back on knowledge in the field. The GROOF project can add a lot of expertise on top that how a project can be adapted on a rooftop. Furthermore, even non-rooftop urban farms as well as classical horticulture businesses outside of cities can profit from the large knowledgebase laid out by the GROOF experts. Read More
Who do you think can benefit from the lessons learned from the GROOF project? Nicolas Ancion (NA): The knowledge developed within GROOF will be very helpful for the people involved in a rooftop greenhouse project. Moreover, I do believe that it could also be valuable for any urban agriculture project. Indeed, we do not consider the greenhouse as an objective, but as a tool allowing, in a specific context, to achieve environmental, societal, and economic objectives. Read More
Selon vous, à qui les enseignements du projet GROOF peuvent-ils bénéficier ? Les promoteurs immobiliers, les architectes et les ingénieurs vont pouvoir tirer de nombreux enseignements des projets développés grâce à GROOF. Le secteur de l’agriculture pourra aussi s’inspirer de ces expériences pour démystifier le travail d’Urban Framing. Read More
Thank you to our partners for their participation in the Groof master class at the inauguration of WASABI, the Walloon platform for urban agriculture in Belgium! An opportunity to share established knowledge on the themes of construction, production, energy and economic viability with the belgian public of the sector. Read More
On Tuesday, June 30th, the group of 10 Early Adopters, leaders of rooftop greenhouse projects coached by Groof partners since 2019, has attended an online webinar with PAKT, a project of 1800 m² urban farming built in Antwerp, in Belgium. Our group of Early Adopters has been inspired by this sharing of experience in the field of urban agriculture. PAKT bridges the gap between urban agriculture and "classical" agriculture by giving the farmers of the region visibility through their weekly market and sales platform. Read More
Selon vous, à qui les enseignements du projet GROOF peuvent-ils bénéficier ? Si les enseignements de GROOF bénéficient sans nuls doutes aux acteurs de la contruction ou de l’aménagement urbain, les professionnels des filières agricoles montrent un intérêt croissants au déploiement d’outils de production efficaces, et si possible rentables, en milieu urbain. Les importantes serres en toitures, notamment Outre-Atlantique, mais aussi progressivement en Europe, montrent qu’elles représentent un marché potentiel d’intérêt pour ces acteurs. Read More
Official photos, logos and interviews are available in our Media Kit.
PRESS CONTACTS (ENGLISH/FRENCH) IN BELGIUM:
Nicolas Ancion - GROOF Open Call Project Manager : email@example.com (+32 481 62 24 30)
Aurélie-Anne Jacquerye - Groupe One Project Manager : firstname.lastname@example.org (+32 492 25 28 27)
SAMPLE OF PARTNERS INTERVIEWS
What expertise do you bring to GROOF project?
"We offer knowledge in circular economy and material flow management, especially in regards to energy and resource efficiency and management. HS-Trier/IfaS has also an expertise in environmental assessment methodologies, such as greenhouse gas emission accounting, in order to contribute to the identification of potentials to improve buildings’ environmental performance. Thus, we contribute to GROOF with technical support including technical monitoring of CO2e performance in order to maximise emission savings."
Thomas Anton: Hochschule Trier Institut für angewandtes Stoffstrommanagement, Germany
"Innovation, sustainability, health, three key words representing the impact of GROOF project!"
Pierre Raulier, Project Manager, Centre de Recherche en Agriculture Urbaine, Université de Liège, Gembloux Agro-Bio Tech, Belgium
Quelles seraient les principales raisons pour un développeur de projet d'installer une serre sur toit ?
"Au Luxembourg, un maître d'ouvrage pourra se convaincre de faire une serre sur le toit de son bâtiment en prenant en compte les arguments suivants :
- utiliser et rentabiliser un espace perdu
- augmenter la performance de son bâtiment grâce à un système qui isole, voir chauffe son bâtiment tout en s'autofinançant
- apporter une plus value dans la vie sociale des bâtiments de logement ou tertiaires."
Marcel Deravet - Sustainable construction project manager, Institut de Formation Sectoriel du Bâtiment, Luxembourg
What were the motivations of the Universitat Autònoma de Barcelona (UAB) to get involved in GROOF project?
"Transfer knowledge accumulated during the last ten years of work and research within ICTA-UAB in urban agriculture in southern Europe. Also, help promote Urban Agriculture in cities and, in this way, reduce CO2 emissions in buildings and make horticultural production more circular."
Xavier Gabarell Durany, Projet Leader, Universitat Autònoma de Barcelona, Spain.