Lightweight Purlins

Easy to handle and simplify transportation
Durable and adaptable to all weather conditions
Brings down the overall cost of roofing and allows intelligent use of other lightweight materials
Professional quality

  • Length: 5.8 m
  • Top Width: 25.82 mm
  • Base Width: 68.59 mm
  • Height: 38 mm
  • Thickness: 0.5 mm
  • Weight: 0.5 kg/m
  • Coating Type: Zinc Auminum
  • Coating Material: Az150 (150 gm/sqm)
  • Yield Strength: 550 MPa
  • Point Load (Purlin supported at 3 span): 1.6 KN (At a rafter
  • span of 800 mm)
  • Uniformly Divided Load: 3.3 KN (At a rafter
  • span of 800mm)

Always use the correct size and quantity of fasteners as specified. Screws at connections must be directly in line (parallel with the supporting member). One screw to be fastened on each side of purlin at the point of connection with rafters.

Minimum 15 cm of overlap is recommended, with minimum 4 screws per overlap. "The recommended screw size is 5mm diameter with minimum 20mm length.

Structural laps for Lightweight purlins require a minimum 15% lap length. End fastenings of Lightweight purlins should be 25mm from the section end irrespective of whether this occurs at the structure end or at an internal support.

Maximum span of rafters is 800 mm.

Cutting is preferably done by shear or hacksaw. When using abrasive disc blades care must be taken to ensure the swarf produced does not affect other materials and the burred edge should be cleaned off at the completion of cutting.

We do not recommend the welding of lightweight purlins. It should only be screw fastened to the supporting structure.


Why choose lightweight purlins?

The fact that the purlin is very light in comparison to other types available in the market, makes it ideal for
manual handling on site and speedy erection.

Lightweight purlins, in most instances, offer a cost advantage over other roofing structures. The fact that it is easily assembled on site leads to a significant saving on transport costs.