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Fusion Insulated Steel Frame Building System

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Fusion Insulated Steel Frame Building System

Description of the Fusion Building System

A system based on factory assembled structural wall, floor and flat roof panels (or cassettes) framed by light gauge galvanized steel cold rolled C sections manufactured by Fusion using computer controlled machinery that cuts to length, forms holes and presses dimples where rivets or screws are to be located. The steeel sections are screwed/riveted together to form frames on a flat bed production line. Frames for external wall panels have non-structural timbers added as a permanent shutter for insulation and as ‘grounds’ for site fixing dpc’s, cavity barriers and window/door frames. External wall panels are also fitted with patent wall tie fixing brackets or ‘top hat’ or ‘Z’ section rails – as appropriate for the intended cladding. The framed external wall panels are then encapsulated with Neopor injected fire retardant expandable polystyrene insulation to the full thickness of the 92mm studs + 70mm timber ground giving a total external panel thickness of 162mm. Wall panels include diagonal steel straps to provide 'racking' strength. Floor and flat roof cassetts are factory framed and held square by a permanent timber deck. The system has various third party certifications (see 'Scope of Information') and reliance has been placed on this work where appropriate.

Limits on scope:

  • Maximum 10 storeys with building height not exceeding 30m
  • Bottom channel minimum 150mm above external ground level or suitable peripheral drainage and/or tanking provided appropriate to prevailing ground conditions
  • External wall claddings must have a drained and vented cavity
  • Fusion must be contracted for the design, supply and erection of their steel frame panels
  • Fusion must confirm the suitability of all designs by others that could impact on their frame e.g. external claddings and associated details, internal services, shafts & ducts and internal linings – a 'Builders Manual' is issued by Fusion Building Systems to designers and constructors to assist with integration issues.
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