Modular system for a façade structure

A modular system for a facade structure for a building comprising panels and panel retaining elements for mounting the panels to the building,

• wherein said panels comprise an intermediate portion extending between two panel upstanding flanges located on opposite edges of the intermediate portion and wherein the free ends of the panel upstanding flanges are bent to extend towards the back side of the intermediate portion of the panel thereby forming substantially v- or u-shaped flanges and wherein the free ends of the bent panel upstanding flanges do not touch the back side of the intermediate portion, and
• wherein said panel retaining elements comprise a base portion for securing the retaining element to the building and at least one retaining element upstanding flange,
• wherein the retaining element upstanding flange is provided with recesses and which recesses are provided with securing notches to allow mounting the panels to the building structure by snapping the free ends of the v- or u-shaped flanges of the panels into the corresponding recesses in the upstanding flanges of one or more retaining elements, and
• wherein the securing notches secure the panels in place without the use of a male-female connection between subsequent panels, wherein the angle between one of the upstanding flanges and the intermediate portion of the panels is smaller than 90° and the angle between the other upstanding flange and the intermediate portion of the panel is larger than 90° and wherein the panels are made from sheet material by roll-forming, wherein an angle β between the panel upstanding flanges is greater than 0°.