Home Applications Top Hat Purlins & Battens

Top Hat Purlins & Battens

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Howick’s Tophat Purlins offer a great alternative to Cee Purlins and have many benefits for handling and shipping.

Spans of up to 7m are achievable.


These benefits include.

  • The section is stable and self stands while being fitted.
  • The Tophats can be fixed directly to their supports without the need for cleats.
  • The symmetrical section means no braces are required to prevent twisting.
  • Ridged lips allow for easy fixing.
  • Product can be easily lapped for joining and optimal performance.
  • Can be produced in long lengths only restricted by transportation.
  • Tophats can be nested for transport allowing large quantities to be transported easily.

The Howick TH700 Machine produces a 100mm, 120mm and 150mm Tophat section in 0.95 and 1.15mm material.

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Tophat Purlin jointing details.

The Tophat sections can be lapped to increase their performance.

Typical spans (NZ Standards)

100mm 3.5m
120mm 5m
150mm 7m


Above shows example of a light weight compound floor beam.

The symmetrical section carries load better than an equivalent Cee or Zed Section and eliminates the rotational forces exerted on other sections.

The two Tophat sections are joined with a central strip to eliminate splaying of the section.

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