The System is intended to be used as external thermal insulation for building walls. The walls are made of masonry (bricks, blocks, or concrete, cast on site or as prefabricated panels). The System is a bonded system with supplementary mechanical fixings, and it is designed to give the wall to which is applied satisfactory thermal insulation. The System is made of non load-bearing construction elements. It does not contribute directly to the stability of the wall on which is installed, neither to ensure the air tightness of the building structure but it can contribute its durability by providing enhanced protection from the effect of weathering.