• Building Type : Terraced Individual housing
  • Construction Year : 1990
  • Delivery year : 2022
  • Address 1 - street : Impasse des Châlets 32160 PLAISANCE, France
  • Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

  • Net Floor Area : 30 m2
  • Construction/refurbishment cost : 3 000 €
  • Number of Dwelling : 1 Dwelling
  • Cost/m2 : 100 €/m2

Proposed by :

  • Primary energy need
    (Calculation method : )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building

The Arros campsite is a tourist accommodation located in Plaisance, in the Gers department. It is a place to which the mayor is attached, because it is the only attractive place to bring French and foreign tourists, and thus to promote the village and its region (Marciac festival, vineyards, Pyrenees, etc. ). Plaisance celebrates its 700th anniversary in 2022.

The campsite is located on the banks of the Arros, a river whose name means "to flow". This river flows calmly and peacefully most of the time, allowing vacationers to enjoy its wooded meanders. But the Arros is capricious: located near the Pyrenees, floods can happen. And in these cases, the campsite and its year-round residents are faced with this hazard. In addition, most year-round residents are elderly, not necessarily having time to prepare for unexpected floods.

The owner of Cottages du Lac has experienced many floods since 2011, about twenty. In 2021, an article appears in the local press, indicating that he will no longer have Civil Liability insurance very soon. He hasn't had comprehensive insurance for a long time. It was then that contact was established between FloodFrame and the campsite, which was looking for solutions to protect itself.

The alternatives for the owner are:

  • move house (1.5 million euros, a too expensive project, spread over 3 years);
  • wait about 10 years for a dyke to be built (8 to 10 million euros of public money);
  • protect themselves individually (~ €300,000, project over 3 months).

FloodFrame and the owner of the campsite therefore imagine a new product, taking into account all the specificities of outdoor accommodation. This project was even rewarded with a SETT D'OR , at the largest European trade show. The 1st version is deployed on a mobile home in October 2021, and the campsite maintains its Civil Liability insurance. The 2nd version, developed subsequently and with a new design, is deployed on the Cottages du Lac in May 2022. Thanks to this solution, the campsite has received a multi-risk insurance offer.

The 2nd version of the product, deployed at the Cottages du Lac and installed on the outskirts, provides automatic, permanent and invisible protection.

Building users opinion

The owner of Cottages du Lac is very positive about the process and the results. He can be contacted: Yan LEPINEUX, Arros campsite in Plaisance (32).
He took charge of his own safety, not waiting for the community to do it for him. He sought to innovate. His awareness of risk is very interesting. The public authorities are pushing for this, so that people at risk are actors of their own safety.
He is very satisfied with the project. We have innovated, in a short time. We successfully deployed a new technology. This can be duplicated in many other scenarios (companies, critical infrastructures, heritage buildings).
Finally, the occupant is an elderly and fragile person, who required a lot of attention. This cottage is the first flooded, less than 5 meters from the water. The campsite knows that it will no longer have to bear the material costs in the event of a flood. He is now looking to protect the entire complex (13 chalets), allowing him to work on longer-term solutions (moving for example), which will take 10 years, and are only possible if the company manages to survive and secure their income.
His protection will save him the cost of repairing a flood, for which he is not insured.
Recently he has just received an insurance proposal, still expensive but for years the insurance companies refused it.

If you had to do it again?

We would do it differently. We encountered several unexpected elements, in particular the evacuations and the electrical networks (grounding). We have adapted the distances to avoid them. Lastly, it took us 7 days to install, which is too long for the locals. We have already identified another construction process to reduce it to 5 days.

See more details about this project


Photo credit

Yan LEPINEUX and FloodFrame.


Construction Manager




    Marie-Pierre CIRYCI LAVERNI


    Supports FloodFrame innovation with an Innovation Contract.



    Nicolas GAROUSSIA

Contracting method

Public Private Partnership

More information

As the renovation is centered on solving problems related to flooding, there was no energy audit.


    • Electric heater
    • Individual electric boiler
    • No cooling system
    • Single flow
    • No renewable energy systems


    • Flooding/Runoff
    • Flooding/Slow flood
    • Flooding/Fast Recession

    The FloodFrame system is designed to resist surface flooding (runoff, overflow, submersion) and underground infiltration by capillarity (it protects the foundations with a second underground waterproof membrane, connected to the above-ground waterproof membrane).

    It completely surrounds the chalet, to protect it completely. Additional measures (non-return valve, work on rainwater drains, networks) make it possible to protect the property completely, and to prevent water from entering.

Urban environment

  • 300,00 m2
  • 10,00 %
  • 2 000,00
  • The "Cottages du Lac" area is on the immediate outskirts of the village.

    In the immediate vicinity there is a lake, sports fields, a forest, a restaurant, a mini golf course, a swimming pool, shops, and the village square with all its local services.

    The Les Cottages du Lac complex is located below the main access road to the village. It is bordered by a ditch which brings rainwater to the Arros river, and it is also by this route that flood waters rise.

    The area is harmoniously fenced, with plant hedges, of mature local species. It is planted with old trees providing shade, allowing light to pass through. In front of each cottage, a hedge creates privacy for each neighbour, and there are palm trees, gravelled areas, which create a warm, simple and neat atmosphere.

    The 10th chalet, which is the subject of the project, is at the end of the plot, with an access path made of small white pebbles, a beautiful hedge at the height of a man, a palm tree, the trees of the forest for neighbours. .. and the ditch too. He is therefore the first to be affected by the rising waters.






    Structural work / Passive system

    FLOODFRAME is a flood protection system. Intended for any type of building, it creates buried peripheral protection, ensuring sealing below and above ground (foundations and walls) and of the entire building.

    FloodFrame is invisible. It fits perfectly into its environment. There are several finishes. The one implemented at the Cottage du Lac is made of PVC matching the other construction elements (gutters for example). There are wood finishes, tiles, etc.

    The client is very satisfied to have this type of solution at his disposal. The building would not be well protected by a cofferdam.
    The tenant, an elderly person who lives year-round, was distressed at every flood condition. He is reassured for these goods and personal effects.

Construction and exploitation costs

  • 300
  • 3 000
  • 2 500
  • FLOODFRAME is invoiced per linear meter (500 € / lm on average, i.e. approximately 100-200 € / m² of protected living space on average), supplied, installed and guaranteed for 10 years. An annual inspection ensures this guarantee. Equivalent to those of other technical installations (eg boiler), it allows the tightness to be checked every year.

Life Cycle Analysis

    As part of GreenTech, we have made an initial analysis. We only use recyclable materials. And we are studying with a manufacturer the possibility of working with recycled materials.


    EPDM (Underground sealing component, all products)

    EPDM (Ethylene-Propylene-Diene Monomer) is an inert and fully recyclable material with a low environmental impact. It contains no heavy metals, chlorine or hydrocarbons.

    It has a lifespan of over 50 years and is 100% recyclable.

    GreenPeace and Nibe (Dutch Institute for Sustainable Construction) rank it as the number one eco-material for waterproofing.

    TYVEK (Component for above ground waterproofing, all products)

    Tyvek is a non-woven textile, based on polyethylene fibres. No hazardous substances in the sense of RoHS, REACH & SVHC are used in its composition or in its manufacturing process. 

    It has a lifespan of 20-30 years and is 100% recyclable.

    Its carbon footprint is very low, according to the ADEME website.

    CONTAINER (ENTERTAINED system component only)

    Our HDPE (High Density Poly Ethylene) container has the same properties as Tyvek (100% recyclable). 

    However, it is the element that has the highest environmental cost in our business today, due to its transportation. It is therefore our priority to improve our footprint.

    Today it is comparable to a PVC window. We are trying to do better, with local manufacturing (action with the Occitanie Region and Polyvia) and the use of biosourced materials.


    Our travel is offset at the end of the year by planting trees (for approximately 200 tonnes of CO2 this year). Our 2021 travel has been estimated at a carbon cost of 4 tonnes of CO2 (calculated on the ADEME website).


    At the moment we are offsetting our emissions at the end of the year.


    For our future sites, offices and test centre, we will do the assessment with a specialised consultancy firm. 

    For the test centre, we have chosen a site that was abandoned during a recent relocation and is a true symbol of French industry: Zodiac.


    Our overall carbon footprint is estimated at 80 kgCO2eq per metre of product sold, including products and all support activities.

    In 2022, we will therefore offset 80 tonnes of CO2 by planting trees with a company like EcoTree, for example.

    The Life Cycle Assessment of our activities will enable us to seek to improve our footprint. This is more than a need for us, it is the culture of the group's Danish origins.

Reasons for participating in the competition(s)

Les Cottages du Lac sont régulièrement soumis à inondation par débordement, environ 20 fois en entre 2011 et 2022 selon le propriétaire.

Tout a été tenté : reconstruit, racheté, rénové, des fossés ont été réhaussés. Malgré cela, l'eau trouve encore son chemin jusqu'au bâti, dernièrement en 2018. Les hauteurs sont de quelques centimètres à 30 cm. 

Après avoir testé FloodFrame sur la partie mobilhome en 2021, le propriétaire a souhaité acquérir un système fixe et enterré pour les Cottages du Lac, afin d'éliminer les conséquences matérielles de l'eau sur ce bâti habité à l'année.

Il est le premier déploiement de la nouvelle technologie FloodFrame en France. Cette solution a pour but d'empêcher l'eau de rentrer dans le cottage, d'éviter la dégradation du bâti et des matériaux, d'éliminer les dépenses de rénovation après inondation, jusqu'au nettoyage intérieur et de la terrasse. 

Building candidate in the category

Users’ Choice

Users’ Choice

Green Solutions Awards 2022-2023
 building renovation housing health and comfort materials and solutions eco-materials wood 2022 Resilient Buildings Trophies

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Author of the page

Rémi Alquier

Directeur Général

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