20 / 30 / 60 / 90 / 120 / 180 / 240 See also note under 9.3. required airborne sound insulation grading dB: see drawings 30 / 35 / 40 / 45 / 50 For noise measurement and rating consult SANS 10103. See also note under 9.3. board type: plain / perforated / smoke-tight / impact-proof (e.g. ball) / removable / fold-down / drop-and-slide material: mineral fibre / gypsum / fibre cement / metal / vinyl clad / grid / flush plaster mineral fibre edge: square / revealed square / bevelled concealed / concealed size: see drawings colour: … texture: plain / fissured / perforated finish: … ceiling panels: removable and replaceable from below / fixed / as required for maintenance suspension fittings suspension system: patent / rational design installation grid pattern: see drawings access access: see drawings Access depends on hold-down system, panel removability, access requirements to above-ceiling services, weight of ceiling panels. Discuss with manufacturer/supplier. 9.3 Partitions, linings type: see drawings drywall / light weight internal wall / demountable / cubicle / operable performance required fire resistance in minutes: see drawings 20 / 30 / 60 / 90 / 120 / 180 / 240 Fire resistance: SANS 10400 Part T classifies the performance of materials in respect of fire resistance in categories of 20, 30, 60, 90, 120, 180 and 240 minutes. Architect/Competent Person to specify. Fire resistance is achieved by increasing layers of board. Deflection requirements are achieved by multiple studs reinforced with layers of board. Check with SABISA. required sound insulation grading dB: see drawings 30 / 35 / 40 / 45 / 50 30 (normal speech audible, but unintelligible), 35 ( loud speech understood), 40 (loud speech audible, but unintelligible), 45 (loud speech barely audible), 50 (shouting barely audible) Comparable constructions: 26 (solid wood door without seals), 32 (6 mm laminated glass), 42 (100 mm brick wall), 48 (230 mm hollow concrete wall). For noise measurement consult SANS 10103.
20 / 30 / 60 / 90 / 120 / 180 / 240 See also note under 9.3. required airborne sound insulation grading dB: see drawings 30 / 35 / 40 / 45 / 50 For noise measurement and rating consult SANS 10103. See also note under 9.3. board type: plain / perforated / smoke-tight / impact-proof (e.g. ball) / removable / fold-down / drop-and-slide material: mineral fibre / gypsum / fibre cement / metal / vinyl clad / grid / flush plaster mineral fibre edge: square / revealed square / bevelled concealed / concealed size: see drawings colour: … texture: plain / fissured / perforated finish: … ceiling panels: removable and replaceable from below / fixed / as required for maintenance suspension fittings suspension system: patent / rational design installation grid pattern: see drawings access access: see drawings Access depends on hold-down system, panel removability, access requirements to above-ceiling services, weight of ceiling panels. Discuss with manufacturer/supplier. 9.3 Partitions, linings type: see drawings drywall / light weight internal wall / demountable / cubicle / operable performance required fire resistance in minutes: see drawings 20 / 30 / 60 / 90 / 120 / 180 / 240 Fire resistance: SANS 10400 Part T classifies the performance of materials in respect of fire resistance in categories of 20, 30, 60, 90, 120, 180 and 240 minutes. Architect/Competent Person to specify. Fire resistance is achieved by increasing layers of board. Deflection requirements are achieved by multiple studs reinforced with layers of board. Check with SABISA. required sound insulation grading dB: see drawings 30 / 35 / 40 / 45 / 50 30 (normal speech audible, but unintelligible), 35 ( loud speech understood), 40 (loud speech audible, but unintelligible), 45 (loud speech barely audible), 50 (shouting barely audible) Comparable constructions: 26 (solid wood door without seals), 32 (6 mm laminated glass), 42 (100 mm brick wall), 48 (230 mm hollow concrete wall). For noise measurement consult SANS 10103.
PW371_B_Particular_Specification_edition_2_2_Dec2015.docx