Especially in public buildings, glass walls and doors must be made recognizable by visual markings. This can be easily and individually implemented with decorative films.
Legal requirements for visual markings (German guidelines, guidelines in other countries must be checked)
Glass walls and all-glass doors must be safely recognizable by means of safety markings.
Specification for safety markings on glass in accordance with DIN 18040-1
Transparent doors must be marked at eye level.
from DGUV Information 208-014 “Glass doors, glass walls” 2019
Transparent walls, especially all-glass walls in workspaces or in the area of traffic routes, must be clearly marked.
Requirement of the Workplace Ordinance in Annex 1.5 (3)
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