Requirement
Graphical representation of element, dimensionally inaccurate.
Purpose of information
To provide a visual indication of proposals at a Concept stage identifying key requirements such as access and maintenance zones etc. Information to be suitable for spatial coordination of primary systems / elements.
The above illustrations are for Interlocking tile roofing systems from the NBS section Unit roofing systems. This is indicative of the LOD requirements for Interlocking tile roofing systems.