The Demarcation System provides a high visibility, maintenance free system for use on all roofs where there is a need to designate a safe area of work. It may also be used internally or externally to identify safe, or unsafe areas, to guide workers or the public, and for other similar purposes.


The D-Mark System has been produced in accordance with the latest guidance note for Health and Safety – HS/G-33 Health and Safety in Roofwork 1998 – which states:


“Where limited work is being carried out on sections of a large roof, a simple form of barrier some distance from the roof edge could identify the work area and any access to route to it … markings at foot level are not a suitable alternative to a barrier.”



D-Mark pedestals have a hollow base which makes them extremely light to transport and easy to carry to the roof. When on site, stability is obtained by filling with sand, chippings etc.

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