Brüstung

Brüstung is a parapet or protective edge that runs along the outer boundary of elevated or opening elements in architecture, such as roofs, balconies, terraces, stair landings, and bridges. The term denotes a barrier designed to prevent falls and to define the spatial limits of a structure. Brüstungen can be exterior or interior components and may be part of the wall or a separate railing system.

The primary function of a Brüstung is safety, providing a physical barrier while sometimes also serving as wind protection or a visual termination of an architectural edge. Beyond safety, Brüstungen can influence the building’s aesthetic, light transmission, and acoustic behavior. They are commonly made from masonry or reinforced concrete when integrated into the structure, and from metal, glass, or combined materials in railing systems. Typical designs range from solid parapets to open railings with balusters, to glass panels that preserve sight lines.

Height and structural requirements for Brüstungen are regulated by local building codes and standards. The permitted height and load-bearing characteristics depend on the intended use, exposure, and location (balconies, stairways, roofs, etc.). A common guideline in many jurisdictions is a minimum height around one meter for exterior parapets and balcony railings, with higher values for roofs or wind-exposed edges. Materials and connections must satisfy durability, corrosion resistance, and stability criteria, including protections against impact and weathering.

Maintenance and safety are ongoing considerations. Brüstungen should be inspected regularly for cracks, corrosion, loosened fixings, or damaged glazing, and repaired or replaced as needed to maintain protective function and compliance with regulations. See also parapet, railing, balustrade.