Surface classifications for walls and ceilings

Table 3.1 Surface classifications for walls and ceilings Type of building: Purpose Groups 1 and 2 Room(1) or circulation space: Rooms not exceeding 4 m2 | Surface class for both walls and ceilings National class(2): 3 | European class(2)(3): D-s3,d2 Room(1) or circulation space: Domestic garages not exceeding 40 m2 | Surface class for both walls and ceilings National class(2): 3 | European class(2)(3): D-s3,d2 Room(1) or circulation space: All other rooms (including garages exceeding 40 m2) | Surface class for both walls and ceilings National class(2): 1 | European class(2)(3): C-s3,d2 Room(1) or circulation space: Circulation spaces (within a dwelling) | Surface class for both walls and ceilings National class(2): 1 | European class(2)(3): C-s3,d2 Room(1) or circulation space: Circulation spaces (common areas) | Surface class for both walls and ceilings National class(2): 0 | European class(2)(3): B-s3,d2 or higher Type of building: All other purpose groups Room(1) or circulation space: Rooms not exceeding 30 m2 | Surface class for both walls and ceilings National class(2): 3 | European class(2)(3): D-s3,d2 Room(1) or circulation space: All other rooms | Surface class for both walls and ceilings National class(2): 1 | European class(2)(3): C-s3,d2 Room(1) or circulation space: Circulation spaces | Surface class for both walls and ceilings National class(2): 0 | European class(2)(3): B-s3,d2 or higher Notes: (1) For the meaning of room see definition in paragraph 1.1. (2) The National classifications do not automatically equate with the equivalent classifications in the European column, therefore products cannot typically assume a European class, unless they have been tested accordingly. (3) Where a classification includes 's3,d2', this means that there is no limit set for smoke production and flaming droplets/particles.