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Wall E+

Infinite use of construction materials to optimizes building lifecycle

February 2021
Gallery Wall E+ 1
Gallery Wall E+ 1


WallE+ is a performant, simple, and circular reversible material. it's an industrialized element that can be used as the only structural and insulating material of constructions, from the foundation to the roof. Easily assembled and unassembled without alterations, it extends the lifetime of a building with its great modularities options and can infinitely be reused in other constructions. This is a new material opening a field of resilient, neutral, and circular buildings.

Label Date February 3, 2021
From France
Maturity stage Prototype testing in the real world
Looking For Funding, Partners, Credibility

Implementation Stories

Wall E+ by Caerostris
Implemented by Solutions Composite in Tours (France) in 2019

Solutions Composite, an industrial machinery manufac- turer, tested the Solution to build a two-storey office with a surface of 250 m2 in Mettray in France. The goal was to test the construction system and guarantee their “know-how” on positive energy building as well as to demonstrate the energy efficiency and the low environ- mental impact of the composite materials construction. In addition to the Solution, other technologies were implemented for thermal recovery and electricity production.


Enables modules / elements to have 5 lives instead of 1


The environmental benefits

  • 45kg / m2 on a structural wall (10 times lighter than all alternatives)
  • Top performance insulation element ( RU=6,4 ) insuring the complete function of framework and building envelope ( floor, walls, roof) .
  • 100% Tridimensional stability in all conditions ( heat, humidity, etc ...)
  • 0% demolition = 0% waste = 100 % disassembled and reused
  • Reduce around 30% the carbon cost of the building construction even on the first use
  • Need 15 to 20 times less sand than for a concrete building

The Financial benefits

  • No need for concretes foundation = a gain of 20 days minimum on delivery & savings up to 9%
  • A unique value chain for building owners and a total detention cost lower than other comparatives alternatives by a minimum of 20%
  • -50% labor cost on the global construction cost and solve the 30 % of non-quality hidden costs usually noted in the construction sector

Activity Region

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  • Headquarters
  • Activity

Company Profile


We provide solutions for a sustainable world by reducing building environmental footprint and fostering reusability.

View company profile Solution website
Headquarters 37390 Mettray, France
Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Caerostris has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.