Propurlin
Key for Double Span Propurlin System
Key Double Span
Joints General Notes
  • The self weight of the purlin has been allowed for in the tabulated loads.
  • Deflection has been limited to span/180.
  • All working load capacities have been derived from ultimate load capacities. (Ultimate load capacities are available from our technical department on request).
  • Loads indicated are only valid when the purlins are used in accordance with the information in this brochure.
  • Loads are based on adequate lateral restraint being provided to the top flange by the cladding.
  • For purlin applications where no lateral restraint is offered by the roof cladding system, (i.e. asbestos, standing seam roof coverings etc.), please contact our technical department.
  • For allowable loads for flat roofs please contact our technical department.
  • All single span end bay purlins must be sleeved.
  • Allowable Loads for Double Span Propurlin System:
  • For Span = 4.5m
  • For Span = 5.0m
  • For Span = 5.5m
  • For Span = 6.0m
  • For Span = 6.5m
  • For Span = 7.0m
  • For Span = 7.5m
  • For Span = 8.0m
  • Ultimate Loads for Double Span Purlins
  • Propurlin System - Links
  • Introduction
  • Typical Views of Roof and Sheeting Rail Propurlins
  • Section Properties
  • Key for Simply Supported Single Span Propurlin System and Allowable Loads Tables
  • Key for Double Span Sheeting Rail System and Allowable Loads Tables
  • Key for Single Span Sheeting Rail System and Allowable Loads Tables
  • Ultimate Loads for Single Span Purlins
  • Sag Bars and Horizontal Bracing Requirements
  • Sag Bar Details
  • Struts for Sheeting Rails and Purlins
  • Diagonal Tie Brackets
  • Apex Detail
  • Rafter Stay Detail
  • Sleeves Details
  • Cleats Details
  • Eaves Beams - Physical Properties
  • Eaves Beams - Load Table in Single Span Condition
  • Cleader Angles - Physical Properties
  • C-Sections
  • Range of Inwardly Lipped C-Sections - Physical Properties
  • Range of Compound Sections - Physical Properties