Table 6 - Minimum Performance Requirements - Ceiling Finishes First digit: Fire and smoke resistance dependent on fire strategy type: grid, Acoustic treatment dependant on Acoustic Strategy monolithic, Min reflectance value (LRV) for all ceilings = 0.7 (70%) exposed soffit Second digit: hygrothermal letters Code Area Description Construction Hygrothermal performance Type C1.1 all areas not general clipped, grid ceiling normal subject to humid/ or exposed soffit wet conditions or with exposed high hygiene services requirements Type C1.2 food room, kitchen areas clipped, grid ceiling humid preparation areas, with no exposed kitchen staff and services below store rooms, staff toilets pupil toilets, humid areas monolithic ceiling humid Type C2.2 changing rooms with no exposed and other areas services or where pupils are clipped, grid ceiling left unattended Type C2.3 Showers, hygiene wet areas monolithic ceiling wet rooms with no exposed services Type C3.2 rooms humid areas exposed soffit with humid exposed services Ceilings for unsupervised spaces such as WC and shower cubicles shall be continuous and monolithic or suspended with clips to keep tiles in place and to prevent unwanted access. Ceilings in areas that are supervised such as changing rooms and wash hand basin areas can be suspended in type, subject to moisture resistance criteria being satisfied. The Contractor shall ensure that where suspended ceilings are designed, specified and installed they will: be level and flush at joints, adequately secured and provide surface spread of flame performance in accordance with the relevant statutory codes not be readily damaged by impact or be easily defaced use insulation that is non-combustible, where provided
Table 6 - Minimum Performance Requirements - Ceiling Finishes First digit: type: grid, monolithic, exposed soffit Second digit: hygrothermal letters Fire and smoke resistance dependent on fire strategy Acoustic treatment dependant on Acoustic Strategy Min reflectance value (LRV) for all ceilings = 0.7 (70%) Code Area Description Construction Hygrothermal performance Type C1.1 all areas not subject to humid/ wet conditions or high hygiene requirements general clipped, grid ceiling or exposed soffit with exposed services normal Type C1.2 food room, kitchen preparation areas, kitchen staff and store rooms, staff toilets areas clipped, grid ceiling with no exposed services below humid Type C2.2 pupil toilets, changing rooms and other areas where pupils are left unattended humid areas monolithic ceiling with no exposed services or clipped, grid ceiling humid Type C2.3 Showers, hygiene rooms wet areas monolithic ceiling with no exposed services wet Type C3.2 rooms humid areas exposed soffit with exposed services humid Ceilings for unsupervised spaces such as WC and shower cubicles shall be continuous and monolithic or suspended with clips to keep tiles in place and to prevent unwanted access. Ceilings in areas that are supervised such as changing rooms and wash hand basin areas can be suspended in type, subject to moisture resistance criteria being satisfied. The Contractor shall ensure that where suspended ceilings are designed, specified and installed they will: be level and flush at joints, adequately secured and provide surface spread of flame performance in accordance with the relevant statutory codes not be readily damaged by impact or be easily defaced use insulation that is non-combustible, where provided