Window joinery is a set of structural components (frames, sashes, glazing, hardware, gaskets), made of various materials such as wood, PVC, aluminium or composites, which are used to fill window openings in buildings. Its main task is to provide daylight to the interior. In addition, it is supposed to protect against weather conditions, noise and provide thermal and acoustic insulation.
The joinery also has an aesthetic function, influencing the appearance of the façade and interiors, and additional equipment such as anti-burglary fittings, increases the safety of users. Window joinery is an important element of architecture, combining functionality, energy efficiency and aesthetics.
The term 'carpentry' comes from tradition. In the past, wooden frames were used and therefore made by a woodworking craftsman called a carpenter. It was only relatively recently that wood could be replaced by modern technologies such as PVC or aluminium.
