Sloped roof systems Globalroof® IN 227 for Roof | ArcelorMittal Construction

Globalroof® IN 227

IN 227 is double skin system with an inner structural tray and an external steel profile with a minimum thickness of 1.25mm. It delivers a very high level of sound insulation, and Up of 0.30W/m².K.

Composition :

  • Non load-bearing tray Hacierco C in thickness 1.25mm
  • Vapor barrier
  • Cleats or steel spacer
  • Mineral wool in 2 layers ,with a mimum thickness of 200mm (100kg/m³)
  • Purlin to get 275mm between profiles
  • Additionnal glass wool insulation nipped on purlin to fill the air gap
  • Profile Trapeza 1.25mm thick

Performances and characteristics :

  • Sound reduction index Rw(C;Ctr) = 54(-2;-7) dB
  • Thermal transmittance Up = 0.30W/m².K estimated
  • Weight: 49kg/m²
  • Spacing: 28cm, not including the height of the external weather profile
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