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New South Wales  Australia
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New structural steel member

Rollspan Pty Ltd

Rollspan Pty Ltd (ACN 121 157 819) holds exclusive world-wide rights to the Rollspan product, a unique structural member that has applications as:

- Bearers and joists;
- Purlins;
- Roof trusses;
- Lightweight steel lintels;
- Lightweight beams for supporting formwork;
- Lightweight structural frames;
- Pre-fabricated house kits;
- Prefabricated buildings/sheds; and
- Fabricated non-fire-rated beams in lieu of timber,
  laminated timber, fabricated timber trusses, pipe
  trusses, steel channels and other steel sections.


  


Finished component 188.jpg

Advantages of the product include:

- Excellent strength/weight ratio;
- Excellent safe working load;
- Lightweight
- Easy site handling;
- Environmentally sound (no timber, minimal
   manufacturing waste)
- Cost-effective to manufacture;
- Termite/Borer/Wet and Dry rot free (and avoids use of
 pesticides);
- Services can be concealed in the channel section;
- Available in almost unlimited lengths, typically up to
 12 metres; and
- Manufacturing flexibility for various sizes and alternative
  materials such as colorbond, stainless steel, aluminium.

  

Rollspan 3 - 186.jpg                   Rollspan 4 - 189.jpg

The Rollspan product was invented by Australian engineer, toolmaker and precision machinist
Mr John Silady and was awarded an Australian Patent in March 2007. Mr Silady is a Director of Rollspan Pty Ltd together with Mr Kevin Bostridge and Mr Peter Aynsley.

Visually, Rollspan looks like a cross between an I-beam and a RHS. It can be manufactured in depths from 100mm to 450mm, in either standard or custom lengths. It has significant competitive advantages over a number of existing products such as Z-sections and C-sections. An abstract from the Australian Patent is as follows:

Rollspan section 253.jpg

Abstract of Patent
A structural rectangular hollow section member comprising a top panel, a bottom panel and opposing side panels; each said panel formed by a roll-forming process from flat metal sheet; said side panels provided with upper and lower flange portions; said flange portions enfolded by respective enveloping portions along opposing edges of said top panel and of said bottom panel; and wherein indentations are formed at predetermined intervals along said enveloping portions; said indentations extending sufficiently into said enveloping portions to cause corresponding indentations in said flange portions; said indentations providing resistance to longitudinal movement between said flange portions and said enveloping portions; said movement including movement induced by torsional loads.

With the Australian Patent now awarded, Rollspan Pty Ltd is gearing up for commercial production.

For further information, contact info@rollspan.com.au