Purlin & Rail Systems Technical Handbook

Multibeam Evolved Now in its fourth generation and with four decades of development, our highly evolved purlin and rail system lighter for easier site handling, stiffer for straighter cladding lines, stronger for longer spans and greener due to reduced steel content. This means that it saves you time, lowers your costs and provides greater sustainability. Lighter I Stiffer I Stronger I Greener

Products Overview Roof Purlins Eaves Beams Cladding Rails Cladding Rails Ordering Methods Roof Purlins Eaves Beams Company Overview

Foreword Kingspan Structural Products are manufacturers of cold formed structural products, including Multibeam purlin and rail systems, Multideck composite steel floor decking, Multichannel sections and a comprehensive range of ancillary products on a fifty acre site in North Yorkshire. In five decades of trading the company has become established as a market leader renowned for quality products and innovative design. Kingspan Structural Products Manufacturing Complex Kingspan Structural Products Multibeam Purlin System A range of purlin sections designed to suit all types of modern roof construction...

Customer Service Experience From concept and design to manufacture and site installation, Kingspan Structural Products has an unmatched degree of experience with over four decades of experience and technical expertise in all aspects of steel construction. With Multibeam now in it’s fourth generation, Kingspan remain focused on servicing the ever changing need of the construction industry. Technical Excellence At Kingspan Structural Products we are committed to advancing technology within the construction industry. Working in conjunction with the world’s leading experts, continually refining and...

Products Overview Multibeam Purlin and Rail System With simple connections and economical sections, Eaves Beam is compatible with all types of cladding in modern roof construction Multichannel System can be used for a myriad of applications such as horizontally laid cladding rails, gable posts, door and window trimmers and floor joists. typically requires fewer components than other systems. This means quicker assembly and faster project completion.

You c an’t get i with t wro Mult ng ibeam The u purli nique ns; sigma is “n shape on-ha nded” makin , g it the m versat ost ile p urlin the m on arket today . Multideck composite floor slab decking system can save up to 20% on concrete costs, when compared with other deck profiles. Please see our separate technical handbook (ref P292).

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Spanning Systems Anti-Sag Requirements Purlin Restraints Construction Details Product Dimensions and References Section Properties Load Tables Roof Purlins Roof Purlins

Multibeam Roof Purlins - Overview Applications - All types of roof cladding - Pitched, mansard, curved or flat roof applications - Roof slopes from 0°to 60° - Bay widths up to 15m Material Specification Hot dip galvanised steel to BS EN 10326:2004 and BS EN 10143:1993 ‘specifications for continuously hot dip zinc/metal coated structural steel strip’. The minimum grade of steel used is S450GD, with Z275 zinc coating, giving an average coating thickness of 0.02mm to each side. Other galvanised coatings may be available. Please contact our Technical Department for advice. Sustainability The Multibeam...

Use d ouble sp syste m wh an ere possi ble • fewe r com ponen • quick ts! er to erect! Most double span bar lengths can be provided, although bays over 9m generally use single span lengths and are sleeved at every other joint to maintain continuity. Multibeam can be supplied in various lengths, please check with our Sales Department for lengths over 18m. Multibeam can be used in all the popular and economic purlin spanning systems. The enhanced stiffness of the Multibeam shape makes it ideal for all span dimensions from the very short to the very long with purlin bar lengths of 18m or more, making...

Anti-Sag Requirements Multibeam purlins on popular spans do not generally require anti-sag ties. In certain circumstances such as wind reversal conditions, large bay sizes or cladding systems that do not provide lateral restraint, then anti-sag ties may be required. Please refer to table 1:1 or the Kingspan Toolkit Software. Mult ibeam purli do no ns t req uire antisag popul ties on a (up t r spans o 6.1m roof and slope s 10˚ or le ss). Table 1:1 Anti-Sag requirements for differing bay centres at varying roof slopes Roof Slope < 3° Multibeam Purlin Section Depth (mm) Angle Struts Angle Struts...

Roof Purlins Typical Tubular Tie Arrangement Typical Angle Strut Arrangement Ties installed in line Typical Multilok Tie Arrangement Typical Multilok Tie Arrangement Ties staggered For details on hole groups please go to page 135.

Purlin Restraint Multibeam purlins can be used with all types of modern roof cladding systems including metal composite panels, standing seam, insulated membrane panels, and traditional tiles. However, it should be noted that certain types of roof cladding do not give the necessary lateral restraint to purlins and additional restraints may be required. Please consult Table 1:2 for guidance. Table 1:2 Restraint requirements for various types of roof cladding Type of roof cladding Provides lateral restraint Load Table Use normal load tables Use normal load tables See additional information opposite...

Roofing systems - Through fix Built-up Roofing Generally comprises of a trapezoidal outer weather sheet, insulation, spacers and an inner liner sheet all assembled on site. Where the profiled liner sheet is steel with a minimum gauge of 0.4mm using self tapping screws at maximum cross centres of 350mm, then adequate restraint is provided to the Multibeam purlins to enable the published load tables to be supported. Restraints as table 1.1, page 10. Where there is no steel liner sheet through fixed to the purlin, additional restraints must be provided as shown in table 1.3 to enable the published...