Abstract: The invention relates to a modular, self-supporting mounting system for mounting an arbitrary number of flat modules (170) on flat roofs, wherein the modular, self-supporting mounting system comprises at least one base element for mounting a single flat module (170), wherein the base element comprises the following: a first and second module strut (110) disposed in parallel next to each other; a first and second front module support (120) having a first length, wherein a first end of the first front module support (120) is attached to a first area (111) of the first module strut (110), and wherein a first end of the second front module support (120) is attached to a first area (111) of the second module strut (110); a first and a second rear module support (130) having a second length, wherein a first end of the first rear module support (130) is attached to a second area (112) of the first module strut (110), wherein a first end of the second rear module support (130) is attached to a second area (112) of th

Abstract: This invention relates to film which is lettered with a laser beam comprising at least one protective film which is transparent to the laser beam, at least one opaque layer which is ablated by the laser beam, and at least one contrast-forming layer on its bottom. The abatable layer is preferably a metallic layer and can have a color like the contrast-forming layer. The color of the metallic layer is different from the color of the contrast-forming layer. The contrast-forming layer is either applied, imprinted or varnished onto the metallic layer. The contrast-forming layer can be at least one plastic film. On a side of the contrast-forming layer facing away from the metallic layer there is an adhesive layer which is covered with a carrier material, for example, an adhesive-repellant carrier film.