The invention relates to a ventilated wall for buildings comprising a thin coating or first layer (1) comprised of porcelain or ceramic stoneware, of marble, of travertine or of volcanic stone or of cement compounds, suitable for being provided at a distance from said building to realize an interspace for air circulation, said ventilated wall comprising a reinforcement system (10) for said first layer (1) comprising, on the side faced toward said building, a second fiberglass layer (2), coupled with said first layer (1), a third layer (3) comprised of foamed material, and a fourth layer (4), the coupling of said layers (1, 2, 3, 4) being realized by gluing material having flexibility properties.