CE marking indicates that a product conforms to legal requirements in specific European technical standards known as harmonised European Norms (‘hEN’). It enables a product to be placed legally on the market in any European member state. However, regulatory requirements may differ from country to country.
The manufacturer is the company that brings together the frame and the glazing, i.e. a company that buys frames from one source and IGUs from another is deemed to be the manufacturer under the CPR and is therefore legally responsible for CE Marking.
EN 14351-1 - Windows and doors – Product standard, performance characteristics. Part 1: Windows and external pedestrian doorsets without resistance to fire and/or smoke leakage characteristics (Published hEN)