Fielders Hi-Rib sheeting is a modern, attractive, versatile roof or wall cladding manufactured from Hi Tensile steel. Hi-Rib has a bold, deep troughed profile that is able to be fixed down to 1° pitch and can achieve up to 3.4 metre (multiple) spans for roofing. The uses of Hi-Rib are numerous from carport and verandah roofs to roofing and wall covering for industrial and commercial buildings.

Hi-RibDESIGN SPECIFICATION INSTALL

THE FIRST SELECTION IN STEEL

Material SpecificationsTL-5/M-CLAD Light Industrial

Zincalume® ColorbondKg Mass / Linear Metre 3.3 3.36 1000 / (Lm/Tonne)Kg Mass / Metre2 (cover) 4.34 4.42 1000 / (Lm Mass/760)Base Metal Thickness 0.42 BMTTotal Coated Thickness 0.47 TCTTensile Strength G550 Base Steel Designation

Coating ClassAZ150 (150g/m2)

AZ200 (Ultra) Z450 (Galvanised)

Z600 (Heritage Galvanised)

Minimum Coating gms/m2 of Zinc - Aluminium

Tolerance Sheet Length ± 7mm Cover Width ± 4mmThermal Expansion 2.9mm Average per 5 metre at 50°C change.

Carports & Verandahs Span Tables Decking - G 550 - AZ 150

Spans for TerrainCategory 3 Category 2

W28 W3 W41

HI-RIb 0.42bMT 0.47 TCT

(2800) 3700(2800) 3700

(2800) 350(2800) 3500

31003100

Single Span Multiple Span

Notes: Roof pitch 1˚ minimum (1:60) is recommended for all roofing profiles. Planking or crawl boards are necessary across sheets during maintenance and fixing operations to prevent damage, where spans exceed those in brackets. Above spans are based on load tests - Report R81/74 and R76/24 conducted by Techsearch Inc. (SA Institute of Technology) and Hosking Oborn and Partners Pty Ltd, calculations by Dare Sutton and Clarke and Wynton Stone International Pty Ltd.

Roofing & Walling Load Span TablesTable 1 – Maximum Allowable Support Spacings – Non Cyclonic Regions

Roof Spans (mm) Max

MaterialSide Cover and Base Thickness

Single Span End Span Internal Span

Unsupported Overhang

Supported Overhang

Steel 680 x 0.42mm 2300 2800 3400 250 250

Maximum Allowable Support Spacings – Non Cyclonic Regions

Roof Spans (mm) Max

Material Side Cover and Base Thickness Single Span End Span Internal

Span Overhang

Steel 680 x 0.42mm 2500 3300 4000 300

Hi-Rib 680

680mm Coverage

48mm

48mm

680mm Coverage

Minimum roof pitch 1˚ (1 in 60)

Fasteners Fixing: RECOMMEndEd FaSTEnERSSteel Supports Thickness up to 5mmCrest No. 12 x 65mm self drill screw with hex head and neoprene washer.Extreme Fixing No. 14 x 65mm self drill screw type 2 with hex head and 40mm diameter x 1.6mm thick steel washer with neoprene seal.Valley No. 10 x 16mm self drill screw with hex head and neoprene washer.

FIxIng METHOdnormal Fixing and Fastening normal Fixing - Crest Valley Fasteners locations either 4 Crest or Valley Fixings.Timber Supports HardwoodCrest No. 14 x 75mm Type 17 self drill screw with hex head and neoprene washer.Valley No. 12 x 25mm Type 17 self drill screw with hex head and neoprene washer.

Note: Length of screw should be 10mm longer for soft wood fixing

Side Lap No. 8 x 13mm self drill screw with hex head and neoprene washer. No. 8 x 13mm slotted pan head pre-drill screw with neoprene washer.Side Lap Fastening It is considered good practice to use side lap fasteners to maintain a weather proof side lap. One or more fasteners are recommended when using Hi-Rib 680 at maximum spans. Lap fasteners are also required along side each valley fastener.

Hi-Rib Fasteners

Direction of prevailing weather

Extreme CrestStandard Valley

No. 14 x 65mm Screw

No. 10 x 16mm Screw

No. 12 x 65mm Screw

Standard Crest

No. 14 x 75mm Type 17 Screw

No. 12 x 25mm Type 17 Screw Side Lap Screw

Normal Fixing of Crest for Roofing applications

Fixing shown to timber

Normal Fixing in Valleys for walling applications showing Side Lap Fastener

Fixing shown to steel

Colorbond and Zincalume are registered trademarks of BlueScope Steel.

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