In ORDER to optimize resources, the building system combines calcium silicate panels and a roof support structure in metal profiles. The panels consist of two calcium silicate sheets, which provide rigidity, filled with mortar and EPS, which guarantees lightness and higher thermal and acoustic resistance to the panel, adapting it to the most diverse uses. The choice of this building system considered for greater optimization in construction, reducing the need for hand labour and execution time, allowing the completion of works in just one year.