Flat roof systems Globalroof® CN 114B for Roof | ArcelorMittal Construction

Globalroof® CN 114B

CN 114 B is a thermal-acoustic flat roof system made of perforated roof deck providing acoustic absorption and sound reduction.

Composition :

  • Profile Hacierco 74 SPA with a thickness of 0.75mm
  • Mineral wool infills for perforated webs (Rockwool)
  • Vapor barrier (Sopravap)
  • Rockacier uncoated 120mm ou 130mm thick (Rockwool)
  • Multi layer bituminous waterfroof membrane

Performance and characteristics :

  • Sound reduction index Rw(C;Ctr) = 41(-2;-7) dB
  • Acoustic absorption αw = 0.60
  • Thermal transmittance Up = 0.33W/m².K estimated
  • Weight: 35kg/m²
  • Spacing: 21cm
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