LIGHT WEIGHT PURLINS

Light weight purlins for roofs
Lightweight purlin systems make building construction fast and easy, allowing you to build the envelope 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.
PRODUCT OFFERING
Light weight purlin for roofs offering
- Product
- Description
-
L Purlin
- L-sections
- Height: 50 - 100 mm
- Thickness: 1.0, 1.2, 1.5, 2.0, 2.5, 3.0 mm
- Minimum length 0 mm
- Maximum length 15000 mm
-
U Purlin
- U-sections
- Height: 100, 150, 200, 250, 300mm
- Thickness: 1.0, 1.2, 1.5, 2.0, 2.5, 3.0 mm
- Minimum length 1600 mm
- Maximum length 15000 mm
-
Z Purlin, Termo
- Z-sections
- Height: 150, 175, 200, 225, 250 mm
- Thickness: 1.0, 1.2, 1.5, 2.0 mm
- Minimum length 1600 mm
- Maximum length 15000 mm
Termo purlins have a lower thermal transmittance (thermal bridges eliminated by up to 90%) and higher acoustic parameters than other purlins.
-
U Purlin, Termo
- U-sections
- Height: 100 - 250 mm
- Thickness: 1.0, 1.2, 1.5, 2.0 mm
- Minimum length 1600 mm
- Maximum length 15000 mm
Termo purlins have a lower thermal transmittance (thermal bridges eliminated by up to 90%) and higher acoustic parameters than other purlins.
-
C Purlin, Termo
- C-sections
- Height: 150, 175, 200, 225, 250 mm
- Thickness: 1.0, 1.2, 1.5, 2.0 mm
- Minimum length 1600 mm
- Maximum length 15000 mm
Termo purlins have a lower thermal transmittance (thermal bridges eliminated by up to 90%) and higher acoustic parameters than other purlins.
-
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.
-
Z Purlin
- Z-sections
- Height: 100, 120, 150, 200, 250, 300 mm
- Thickness: 1.0–3.0 mm
- Minimum length 1600 mm
- Maximum length 18000 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
-
C purlin
- C-sections
- Height: 100, 120, 150, 200, 250, 300 mm
- Thickness: 1.0–3.0 mm
- Minimum length 1600 mm
- Maximum length 18000 mm
C purlins can be used either as wall purlins or wall posts.
Related links
CALCULATION TOOLS

PurCalc® software for designing purlins
With the PurCalc® software, the user can design roof and wall purlins produced by Ruukki. The purlins are designed as continuous beams. The purlin type must be the same for the whole structure, but the thickness may vary. One of the purlin flanges is assumed to be supported with the profile sheet. The other flange may be either supported or unsupported. Basic loads such as uniform snow load and wind load can be easily given with a few parameters. Also, more complicated load types, such as snowdrift loads, can be given. The software calculates the necessary fasteners for the supporting structure as well.
Go to PurCalc® softwareDOWNLOADS

Light weight purlin support documents
From here you can find all necessary documents related to Ruukki's light weight purlins.
Go to support documentsCONTACT INFORMATION
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