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Z Purlins are secondary structural members in a PEB
They are cold-formed steel sections shaped like the letter “Z”.
Used to support roof sheets and wall cladding, transferring loads to the main frame (rafters/columns).
A cold-formed steel section shaped like the letter “Z”.
Placed horizontally on the main steel frame.
Provides support to roofing sheets, wall cladding, and decking.
Common sizes: 140 mm – 350 mm deep, thickness from 1.5 mm – 3 mm.
Advantages of Z Purlin
✅ Lightweight yet Strong – Reduces steel consumption. ✅ Cost-Effective – Cheaper than heavy hot-rolled sections. ✅ Easy Installation – Bolted or screwed directly to rafters. ✅ Continuous Spanning – Overlapping allows longer spans with fewer supports. ✅ Versatile – Can be used for roofs, walls, and floors.