Architectural glass coating has gained relevance in the entire energy consumption discussion worldwide. This affects solar control films for the reduction of climatisation costs in hot climate regions and heat mirrot coatings to reduce energy costs for room heating in regions of moderate climate conditions. Both types of coatings are deposited in a high rate sputtering process. The specific requirements to the magnetron cathode to reach special film properties are described. For the solar control films a low magnetic field strength version of the magnetron cathode is used to improve film hardness. For the heat mirror coatings a high magnetic field strength version of the magnetron cathode is described, especially to prevent the oxidation of IR-reflecting intermediate metal film. Optical values of solar control films on the base of stainless steel and titanium are given. Special colour effects, especially in reflection are described. Heat mirrors are exhibited as three films systems with silver or copper as the intermediate metal films. Transmission and reflectivity values are reported.