1. Description, characteristics, application
Title slide
Lightweight purlins
Description, characteristics, application

2. Content Product description Application in buildings
List of contents with hyperlinks to different subtitles in the presentation by clicking the title.
Product description
Application in buildings
Technical parameters
Certification
Benefits
References

3. Product description Back to the Contents page
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Product description
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4. Product description
Lightweight purlin systems make building fast and easy
Lightweight purlins are suitable for both insulated and uninsulated ceilings and walls
The customer can choose an alternative that best suits his needs, the required span length and the loads the structure will be subjected to

5. Product description Production plants CEE Vimpeli LP-Z-100:LP-Z-350
LP-C-100:LP-C-350
LP-S-100:LP-S-350
LP-H-100:LP-H-350
Production plants CEE
Iceland
Parnu
LPT-U:
LPT-C:
Norway
Finland
Russia
Sweden
Estonia
Latvia
Ireland
Denmark
Lithuania UK
Zyrardow
LP-Z-100:LP-Z-350
LP-C-100:LP-C-350
Belarus
Germany
Poland
Czech
Ukraine
France
Slovakia
Slovenia
Hungary
Serbia
Romania
Croatia
Portugal
Italy
Bulgaria
Spain
Turkey

6. Product description
Product symbol description

7. Product description Types: LP- Z100:Z350 (roll forming)
LP- C100:C350 (roll forming)
LP- S150:S400 (press-breaking)
LP- H100:250 (press-breaking)
LP Thermo

8. Product description Steel material Zinc coatings
zinc-coated steel S350GD+Z275
thicknesses:
1.00, 1.20, 1.50, 2.00, 2.50, 3,00
maximum and minimum profile height: 100 ÷ 400 mm
minimum profile length: 1000 mm
maximum profile length: mm
Zinc coatings
Z275 g/m2 (20 μm)

9. Light weight purlin LP-Z

10. Light weight purlin LP-Z
LP-Z100 ÷ LP-Z350
The Z section is excellently suited as a roof purlin
The major principal inertia axis is in pitched roofs with normal inclination in an approximately vertical position and thereby provides optimum load bearing capacity against the weight of structures and snow

11. Light weight purlin LP-Z
The second moment of area about the minor axis, on the other hand, is so low that it is usually advisable to tie the sheet section on the slope of the roof to the opposite slope by a ridge moulding
The Z section is installed on the roof with the upper flange pointing toward the ridge
Z sections are applicable also as wall purlins, installed with the outer flange facing down

12. Light weight purlin LP-C

13. Light weight purlin LP-C
LP-C100 ÷ LP-C350
C sections can be used as wall purlins or wall posts
The C section differs from the Z section by its centre of torsion, which in the C section is on the back side
Due to torsion, a vertical load acting on the section causes a transverse force component on the flange of the section, acting from the web up toward the upper flange

14. Light weight purlin LP-C
If C sections are used as roof purlins, they need to be installed with the upper flange pointing toward the ridge
As wall purlins, on the other hand, they are installed with the flange facing up, whereby wind pressure loads partly counteract the self-weight of the wall structure
With wind suction loads, the transverse force components strengthen one another, and tie rods may be required to counteract their influence

15. Light weight purlin – LP-S

16. Light weight purlin LP-S
LP-S150 ÷ LP-S400
A sigma section exhibits several plane areas separated by folds
This makes the manufacture of sigma sections more complex than the manufacture of Z and C sections, but this is compensated by the higher durability values owing to the better efficiency of the dimensionally smaller plane areas

17. Light weight purlin LP-S
Thanks to this improved efficiency, the height of sigma profiles can be increased more than the height of Z and C sections
Sigma sections can be used on longer spans, or e.g. in sigma frameworks which are used in large span buildings to achieve moderate spans
A sigma framework is built joining two sigma sections back-to-back with 8-12mm distance pieces, with similar gauge sheet used as gusset pieces

18. Light weight purlins – LP-H

19. Light weight purlin LP-H
LP-H100 ÷ LP-H250
The top hat section is wider than the sections referred to above
This gives it considerably higher lateral stiffness, which makes it suited to applications where the purlin is subjected to transverse loads, as well
Top hat purlins are attached directly from the flanges
They are used as roof purlins, wall purlins or, for example, as truss chords

20. Light weight purlins Thermo
LP-Thermo Parameters:
Thickness: 1.0, 1.2, 1.5, 2.0 mm
Length: 6 – 8 m
Recommended spacing: 600 mm
Profile
A [mm]
LPT-U129
129
LPT-U154
154
LPT-U179
179
LPT-U204
204
LPT-U229
229
LPT-C125
125
LPT-C150
150
LPT-C175
175
LPT-C200
200
LPT-C225
225

21. Light weight purlins Thermo
Thermal transmittance improvement (thermal bridges elimination up to 90%)
Acoustic parameters improvement
-30ºC
+20ºC

22. Application in buildings
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Application in buildings
Application in buildings
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23. Application in buildings
Ruukki lightweight purlins can be used as a insulated and uninsulated roofs in following buildings:
production halls,
warehouses,
shopping centers,
offices buildings,
public buildings
sports buildings,
swimming pools,

24. Technical parameters Back to the Contents page
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Technical parameters
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25. PurCalc
Ruukki’s PurCalc software is used to dimension the purlins

26. Structural systems Structural systems types: Single - span system
Two - span system (multi - span system)
Sleeve - extension system
Overlap - extension system

27. Structural systems Single-span system
Used in walls and roofs, in moderate spans
A simple system and the same support reactions of primary rafters in centre bays, small number of joint components
Whole roof consists of similar purlins
Higher consumption of steel
Higher deflections
Can be implemented with Z, C, top hat and sigma profiles L
6mm

28. Structural systems Two-span system (multi-span system)
Used in walls in 4-6m spans, and in roofs in moderate spans
Small deflections and small number of parts requiring installation
Amount of installation work limited and different support reactions of principal rafters
Long sections, more difficult to handle and can be implemented with Z, C, top hat and sigma sections L

29. Structural systems Sleeve-extension system
Used in roof and wall structures
System contains a special sleeve section, normally either similar gauge to basic purlin or max. 0.5 mm thicker. Optimal weight, small deflections, sections easy to handle
A larger number of component, more installation work, for Z sections the sleeve section is identical to the basic purlin section and for sigma section, a C section is used as sleeve section L
0.13L
6mm

30. Structural systems Overlap-extension system
Used in roof and wall purlins, in spans of 6-10m
The purlins are overlapped inside one another, a double purlin or a thicker section in end bay
Optimal weight and small deflections
Long spans can be achieved, a larger number of joints, more installation work, can be implemented with Z sections
0.8L
0.13L
0.20L L
0.14L

31. Certification Back to the Contents page
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Certification
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32. Certification Quality Certificates ISO 9001:2000 & ISO 14001:2004
LP-Z, LP-C, LP-S, LP-H
Quality Certificates ISO 9001:2000 & ISO 14001:2004
Technical Approval AT /2008
National Declaration of confirmity according to 58/A/2008
Local Certificates when needed

33. Benefits Back to the Contents page
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Benefits
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34. Benefits Low weight of purlins Material and shape is the key
High strength properties are very efficient
Wide selection of purlins to match requirements
Low transport cost and little space in transport
Longer spans than with alternative applicable solutions
Good corrosion resistance
Applicable also in difficult conditions
Fully recyclable material

35. References Back to the Contents page
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References
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36. References Project description: Hall
Light weight profiles, Hall system
2009

37. References Project description:
Custom-office in Donbass region, Ukraine. Ruukki delivered special panels, facade panels Ruukki CL10 and steel purlins.

38. References Project description:
Part of "Olimpiisky" stadium in Donetsk, Ukraine. Design and delivering of the follow materials: purlins, Ruukki T15 profiles and cladding lamellas CL10

39. Thank you for your interest!
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Thank you for your interest!