The Fixolite construction blocks are made of wood (mineralized lime) and Portland cement with a conventional insulating or graphite (inside or outside). The blocks are assembled dry (except the first row). Concrete is then poured to provide mechanical strength to the whole assembly also by providing inertia (RT 2012)
Shuttered boxes are made of a polystyrene rtshell (with steel reinforcement). The outer part is coated with a wood fiber siding, terracotta, concrete or corrugated PSE. Fixolite shuttered boxes can receive all the shutters on the European market.