TROIS DEVELOPPEMENT pays special attention to the materials used in its constructions.
Houses are delivered with oiled or varnished parquet floors containing no volatile organic compounds (VOC). The paints used are eco-labelled, i.e. they contain no heavy metals (cadmium, lead, mercury, arsenic, etc.) and their VOC content is limited to a maximum of 1g/litre.
As for the structures of the houses, wood is a natural and biodegradable material and 5 to 15% of the expanded polystyrene (EPS) used in the insulating blocks of the walls, ceilings and floors of the house comes from recycled sources.
Contrary to popular belief, EPS is a highly environmentally friendly material.
Firstly, EPS is 100% recyclable.
ESP in fact consists of 98% air and 2% material. Among these are naphtha, a derivative of the petroleum refining processes which, if not used in the production of ESP, would simply be disposed of in the ecosystem.
The manufacture of ESP requires only very few natural resources. It is derived from the expansion of styrene beads, to which steam and heat are applied. The beads can reach up to 50 times their initial volume!
It should also be noted that this transformation is done without solvents or glue and that the basic component, styrene monomer, is present in plants in their natural state.
Another advantage is that the ESP contains no harmful gases, and its thermal performance is exceptional. It therefore helps to reduce greenhouse gas emissions.
Thanks to its lightness it is easy to handle and does not require the use of heavy construction equipment.
There are a large number of ESP manufacturers in France, which considerably reduces the costs associated with transport and further reduces the carbon footprint. This is aided by the fact that EPS recycling companies are usually located close to production sites.
The EPS used in the structures of TROIS DEVELOPPEMENT houses is pre-cut, which minimizes wastage during the assembly process. Furthermore, our partner, POPUP HOUSE, has developed hot-wire cutting tools to reduce the amount of waste generated during cutting.
Lastly, the Environmental and Sanitary Declaration (FDES) for EPS defines it as an inert material which is stable over time, non-toxic and non-polluting, and a material that does not contaminate water or soil or require special protection measures, particularly during handling.