The church designed by Gio Ponti is located in the San Carlo Hospital’s area, designed by A. Braga and Ponti himself. The church’s façade is covered by fullbody porcelain ceramic tiles with a shape like spearhead and grey metallic colors. The colors are shimmering and sensitive to the summer light according to the day time and seasonal change. Talking about the preservation work of the cover‘s external façades,Teamwork supplied full body porcelain glazed ceramic tiles size 7.5×15 cm in two different surfaces in relief, making an exact reproduction of the Gio Ponti’s tiles. A careful analysis about which kind of glazed was necessary to apply to the base allowed Teamwork to obtain the chromatic effects necessary for the restructuring.