Lightweight purlins



Lightweight purlin systems make building construction fast and easy, allowing you to build the envelope and exterior wall and roof structures with little effort. 

Ruukki has a wide selection of purlins, which are suitable for both insulated and uninsulated roofs and walls. You can choose an alternative that best suits your needs, depending on the required span length and the loads. The benefits of using purlins are:

  • Light weight
  • High-strength properties increase efficiency
  • Efficient logistics
  • Good corrosion resistance
  • Can be used also in demanding conditions
  • Fully recyclable

The lightweight purlin design is always project-specific. Use our design tool PurCalc
 to optimize the wall or roof structure.

Products (5)

  • lightweight purlin C

    C purlin

    • C-sections
    • Height: 100, 120, 150, 200, 250, 300, 350 mm
    • Thickness: 1.0–3.0 mm
    • Minimum length 1600 mm
    • Maximum length 18500 mm

    C purlins can be used either as wall purlins or wall posts.

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  • lightweight purlin Z

    Z purlin

    • Z-sections
    • Height: 100, 120, 150, 200, 250, 300, 350 mm
    • Thickness: 1.0–3.0 mm
    • Minimum length 1600 mm
    • Maximum length 18500 mm

    The Z section is excellently suited for a roof purlin. In pitched roofs, it provides optimum load bearing capacity against the weight of structures and snow.

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  • lightweigh purlin S

    Sigma purlin

    • Sigma sections
    • Height: 150, 200, 250, 300, 350, 400 mm
    • Thickness: 1.5–3.0 mm
    • Minimum length 1600 mm
    • Maximum length 15000 mm

    Sigma purlins can be used on longer spans, or, for instance, in sigma frameworks which are used in large-span buildings to achieve moderate spans.

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  • lightweight purlin h

    H purlin

    • H-sections
    • Height: 100, 125, 150, 200, 250 mm
    • Thickness: 1.0–2.5 mm
    • Minimum length 1600 mm
    • Maximum length 15000 mm
    H purlins are used as roof purlins, wall purlins or, for example, as truss chords. H purlin has a very high lateral stiffness. 
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  • lightweight termo purlin

    Termo purlin

    • C, U and Z-sections
    • Height: 100, 125, 150, 175, 200, 225, 250, 300 mm
    • Thickness: 1.0, 1.2, 1.5, 2.0 mm
    • Minimum length 1600 mm
    • Maximum length 15000 mm

    Termo purlins have a higher thermal transmittance (thermal bridges eliminated by up to 90%) and acoustic parameters than other purlins. 

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