Between biosourced and circular economy, KP1 innovates with the new “EMX Bois” spacer for high floors

In line with its environmental strategy which aims to reduce its carbon impact by 50% by 2031, i.e. beyond the requirements set by the RE 2020 calendar, KP1 continues to enrich its eco-designed IMPAKT range. *.

Its K-LAB' innovation laboratory works in particular on the development of numerous systems with reduced carbon impact in order to actively participate in the construction of sustainable buildings. The launch of the EMX Bois biosourced company, the result of several months of design work, once again confirms this commitment.

Presented in preview at ARTIBAT and marketed from February 2024 to materials traders, this solution is made up of French resinous tree chips, coming from the Massif Central. It displays an optimal carbon weight of -2,28 kg CO2 eq/m2, ideal for meeting the requirements of RE2020. It is intended for intermediate floors, top of basements and roof terraces. Residential (individual and collective) and non-residential buildings now have low-carbon, high-performance KP1 joists/joists solutions for all floors (EMX Wood/intermediate floors, top of basement and roof terraces and EMR/floors on crawl spaces ).

Each floor has its own KP1 low carbon joist/joist floor

The EMX Bois biosourced spacer, for intermediate floors, top of basements and roof terraces, is available in three formwork heights (13, 16 and 20 cm). It is compatible with dB KP1 Isolators in order to reinforce peripheral insulation and limit thermal bridges. Spandrels also make it possible to fill in the ends of the bays.

The EMR entrevous is a product from the circular economy with 100% recycled raw material. It is intended for floors in crawl spaces. It has a carbon weight of 1,76 kg CO2 eq/m2. To reduce its carbon impact as much as possible, KP1 has also chosen the short circuit, 30 km separate the recycling location in Pont-d'Ain (01) and the EMR interjoin production site.

The lightweight EMX Wood and EMR spacers are easily cut. Offcuts can be reused and waste on site is reduced to almost zero. Their specific geometry, unique on the market, ensures maximum mechanical performance and optimized concrete grading for total cost control. 35 times lighter than traditional concrete spaces, they significantly reduce the risk of Musculoskeletal Disorders (MSD).

Virtuous solutions for all terrains and all construction sites

The beam/joist floor construction method itself makes it possible to significantly reduce the carbon weight of the building thanks to the reduction in the quantity of material and materials generated by prefabrication. Examples: up to -50% carbon weight in crawl space floor compared to a supported slab, and up to -30% in upper floor compared to a solid slab.

Beyond the issue of carbon weight, the joist/joist floor systems have, over time, integrated more and more performances and functionalities allowing them to respond to the constraints of different markets: quality of soils, particularly clayey ones. (ELAN law), thermal, acoustic, fire protection, spans without props up to 7,50 m...