Abstract: The invention relates to a microperforated metal foil and to a process for the preparation thereof which is characterized in that a self-supporting metal foil is perforated with a needle-punching machine.

Abstract: The invention relates to a microperforated metal foil and to a process for the preparation thereof which is characterized in that a self-supporting metal foil is perforated with a needle-punching machine.

Abstract: A sound absorbing heat shielding material includes an inner heat reflective layer, a sound absorbing layer and an outer layer. The inner heat reflective layer defines a plurality of openings therethrough in which the openings are configured to impart a high air flow resistivity on the inner heat reflective layer. The sound absorbing layer is disposed next to the heat reflective layer. The outer layer is disposed adjacent to the sound absorbing layer and opposite from the inner heat reflective layer. The outer layer defines a plurality of openings that allow air to pass therethrough.

Abstract: The invention relates to a method for preparing a graphic design 1 on a plurality of contiguous covering elements 4 forming the outer surface of a roof of a building or a facade by the well-aimed application of parts of the design 1 to the outer surface of the covering elements 4, wherein the graphic resolution of the design 1 is smaller than the outer surface of said covering element 4, and further to a roof of a building or a facade comprising a plurality of contiguous decorative elements 5 forming the outer surface thereof, obtainable by the above method.