U Purlin, Termo
Ruukki’s Termo purlins offer an optimised solution for avoiding cold bridges in purlin constructions on external roofs or walls.
Cold bridges can be minimised by the slotted hole system on the purlins’ web. To optimise the design, use our PurCalc software.
- Industrial construction
- Hall and warehouse construction
- Renovation projects
Cross section geometries: Termo Purlin U
|Type of purlin||Termo perforation row quantity (pcs)||Thickness (mm)||H (mm)||A (mm)||B (mm)||C (mm)||Weight (kg/m)|
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® software
Please provide the following information when ordering:
- Type of purlin
In case of pre-punched purlins, please send us purlin drawings showing the location of the holes.
Purlins can be pre-punched in our factory. This makes construction on-site faster and easier. The standardised sizes and locations of holes for fixing screws are presented below. Please contact us for additional information about the pre-punching possibilities.
Holes are made during production at continuous line.
- Max. material thickness 3mm (for ø 60mm max. material thickness 2mm)
- Holes can be made in a row
- Oval and rectangular holes can be rotated by 90°.
|Type of hole||Diameter (mm)||Rotation (°)|
Certificates and approvals
Here you can find all certificates and approvals related to Ruukki's light weight purlins. Documents are organised by document type. Click to enter document library.