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  • TWiC technology has been under research and development since 1973. It is now proven and commercially available.
  • TWiC buildings consist of one or more room-sized TWiC modules.
  • TWiC modules are manufactured by TWiC plants using locally available materials.
  • TWiC plants may be permanently located or transportable.
  • TWiC plant sales are accompanied by on-site supervision, training and technology transfer in regard to both plant operation and module assembly.
  • TWiC modules may be 4- or 5-sided. They are produced by spraying concrete onto rectangular steel moulds. Provision is made for windows, doors and other openings. A 4-sided module is effectively a rectangular cross-section tube; a 5-sided module resembles a box. Additional sides are added as needed.
  • TWiC modules have a nominal wall thickness of 2 inches (5 cm). They are reinforced throughout with heavy steel wire mesh and by integrated external concrete ribs.
  • TWiC modules may be produced in various Imperial and metric sizes. A typical size, which forms the basic structural component for a wide range of building requirements, has internal dimensions of 16 ft by 12 ft by 8 ft high (4.9 m by 3.7 m by 2.5 m high).
  • TWiC construction typically employs about half as much concrete as conventional construction, making it more economical. Globally, this translates into a structural cost of less than $5 US per sq ft ($54 US per sq m).
  • TWiC modules can be used singly or in combination to meet a full range of housing needs from single-family, single-storey houses to 16-storey apartment blocks and offices.
  • TWiC construction, in combination with conventional construction methods, may be employed for buildings requiring large open spans, such as a school gymnasium or auditorium.
  • TWiC modules have internal surfaces as smooth as gypsum wallboard and may be directly primed and painted.
  • TWiC buildings may be finished to any level from the most basic to the most luxurious using all available finishing materials.
  • TWiC modules are precision-made, allowing for rapid assembly and excellent fit of finishing components such as windows, no building site waste and a minimum of on-site labour.
  • TWiC buildings are intrinsically energy efficient and may be insulated to any level. Together with a reduced requirement for concrete and lack of wastage at the building site this makes them environmentally friendly.
  • TWiC modular construction allows buildings to be architecturally distinctive (with cantilevers and offsets to create terraces and balconies, etc.) at far less cost than with conventional construction, or they may be externally and internally indistinguishable from conventional concrete or frame construction.
  • TWiC buildings are highly resistant to earthquake, fire, hurricane and heavy levels of daily use. Their low maintenance requirements cause them to retain their value and make them a good long-term investment.
  • TWiC buildings in use in the Vancouver, Canada area include townhouses, a 6-storey apartment block, a luxury home and a mini-storage warehouse. Located on the Northerly extension of California's San Andreas fault system, this area of Canada is the one most likely to be affected by earthquake activity.
  • TWiC buildings meet or exceed all Canadian building standards which are universally recognized and accepted.
  • TWiC construction is rapid, versatile and durable. It is the answer to the world's affordable housing needs.

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