Products

Product Range

At IndoPurlin, we understand the liberal designs of architects and engineers. Our C and Z purlins are roll-formed and precision-cut for a multitude of uses that includes.

Our sense of responsibility extends to workplace safety. We strongly believe that good safety equates good business. Through regular training sessions, we make sure that our workers, and also those of our contractors, are able to do a. good job safely.

Material specifications

Hot Dipped Galvanized High-Tensile Steel

Conforms to BC1:2012 Design Guide on Use of Alternative Structural Steel.
Minimum yield stress 450 MPa.
Zinc coating Z275 (275g/m2).
Base Metal Thickness: 1.5mm – 3.0mm
*Zinc coating Z350 (350g/m2) is available upon request and subject to minimum quantity.

C Purlin Profile

C Purlins – Section Properties

C purlins have equal flanges and are suitable for simply supported spans. C purlins are non-overlapping. Non-standard orders are available upon request

Z Purlins Profile

Z Purlins – Section Properties

Z purlins feature one broad and one narrow flange so that two Z purlins of the same size fit snugly together. Z purlins are ideal for lapping to achieve higher strength for the same section installed in single spans.

Hole Punch & Cleat Details

IndoPurlin C and Z purlins are supplied with holes punched (to builder’s requirements) with recommended holes to match cleat details (see illustration below).
The purlins are designed based on the web to cleat connection of sections.
Please use purlin detailing sheet (shown on page 7) when placing an order.

Note :

It is necessary to have the top flange of the purlins to point up the slope. This minimizes any rotational tendencies of the purlins.
D: Purlin Depth.
10 standard hole punch per piece. Additional hole punch subject to additional charges.

Lapping Details/Lapped Configuration

To provide sufficient structural continuity, each end of the lap requires one bolt through the webs.Nominal length is the distance between bolt centers at the end of the laps. Laps vary in length with both section size and span. Minimum lap should be 10% of the span.
Note: Flange punch holes are available for Z200 series and larger.

Bolt Details

Bolts are usually M12, M16 (grade 4.6)

Application

C purlins can be used in single or continuous spans but cannot be lapped. Z purlins can be used in single or continuous spans (lapped or unlapped). Lapped continuous spans will increase purlins loading capacity.

Custom Cut

IndoPurlin high tensile purlins are available in custom- cut lengths. Special transportation arrangement and on-site handling equipments are required for purlin lengths more than 12m.

Packing & Tranportation

IndoPurlin purlins are packed in bundles with weight generally less than 1500kg and strapped with metal strips. Special packing for export requirements are provided upon request.

Technical Support / Design Calculation

At IndoPurlin we provide purlins of size and thickness aside from those listed in the table. Subjected to minimum quantity and constraints of roll forming process. This allows builders to maximize section capacity. Design calculation based on Eurocode 3 : Design of Steel Structures – Part 1-3 : General rules – Supplementary rules for cold formed members and sheeting.