What is ISO 4157-2 - Designation systems - Room names and numbers about?
ISO 4157-2 is the second part of the multiple series that specifies requirements for designation systems for rooms, areas, spaces, and voids in buildings by room names and numbers. It is intended for the identification of rooms in the daily use of the buildings.
Note: For identification of rooms in a project throughout its life-cycle, i.e., conception, programming, planning, erection, maintenance, remodelling, and demolition phases, see ISO 4157-3.
Who is ISO 4157-2 - Designation systems - Room names and numbers for?
ISO 4157-2 on designation systems - Room names and numbers are useful for:
- Manufacturers and supervisors of prefabricated structural components 
- Entities involved with technical and engineering drawings 
- Engineers 
- Architects 
- Contractors 
- Construction industries
Why should you use ISO 4157-2 - Designation systems - Room names and numbers?
Construction drawings show what will be built, how it will be laid out, as well as the components, framework, and dimensions. Every part of a construction project has a construction drawing that highlights the specifics.
ISO 4157-2 specifies the general room number principle for Indication on drawings for clarity of room numbers and room names. In the physical building, the identical designation is posted clearly at the door or by the opening to the respective room, but not underlined. ISO 4157-2 specifies numbering rules and a sequence of construction drawings of room names and numbers.
Overall, you can use ISO 4157-2 to clarify room numbers and room names that are underlined on drawings.
