About Lo-Rib™
Lo-Rib™ is manufactured from High-Tensile steel in both 0.35mm and 0.42mm based metal thicknesses. Lo-Rib™ is recommended for wall cladding purposes in steel buildings or sheds with walls no higher than 3m. Available in long lasting ZINCALUME® and COLORBOND® steel, Lo-Rib™ provides and attractive finish as a price conscience alternative. Depending on location, actual product supplied may vary from image shown.
Material Specifications
| Property | Notes | |||
| Base Metal Thickness (mm) | 0.35 | 0.42 | BMT | |
| Mass / Unit Area | ZINCALUME® | 3.23 | 3.84 | kg/m2 |
| COLORBOND® | 3.26* | 3.88* | ||
| Minimum Yield Strength | G550 | Base Steel Designation | ||
| Coating Class | Z600 (Heritage Galvanised) AM100 (COLORBOND® Steel) AM125 (ZINCALUME®) AM150 (COLORBOND® Ultra Steel) Z450 (Galvanised) | Minimum Coating g/m2 of Zinc - Aluminium |
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| Coverage (mm) | 840 | |||
| Tolerance | Length: +0mm, -15mm, Width: +4mm, -4mm | |||
Note:
- Lo-RibTM is manufactured from materials in accordance to AS 1397 and AS 2728. It is to be installed in accordance with AS 1562 and HB 39.
- The sectional properties are theoretical values per sheet width. These properties are gross values only.
- *is based on Standard COLORBOND®; single-sided material. For other painted steel options please contact a Fielders® representative.
Figure LR NC 001 End Spans, Internal Spans and Overhangs illustrates the terminology end spans, internal spans, and overhangs and their reference to the supporting substructure. This terminology has been used in the following Maximum Recommended Span and Wind Load Capacity tables.
Figure LR NC 001 End Spans, Internal Spans and Overhangs
Pierce Fixing
Fasteners must be selected to match the life expectancy of the cladding material. Recommendations from fastener manufacturers should be sought. Only fasteners complying with AS 3566:2002 and those that are compatible with the roofing material should be used for its fastening.
Pierce Fixing Table
| Fixing Supports | Valley Fixing (Wall Only) |
| Steel 1.0 to 3.5mm | 10-16x16, Metal Teks, HH or M5-16x25 Designer Head |
| Timber Hardwood & Softwood | 10-12x25, Type 17, HH or M5-16x25 Designer Head |
Notes:
- For other steel thicknesses not specified please seek advice from screw manufacturer.
- Values given are: gauge/threads per inch/ lengths (mm). HH = Hex. Head, WH = Wafer Head, HG = Hi-Grip
- Care is required during installation to prevent stripping of thin material. (Single ply.)
- Screw specification as above or equivalent fastener.
- All screws with EPDM sealing washer.
Fastener Spacings - Non-Cyclonic
Valley Fastener Location
Externally, panels should be lapped away from the prevailing weather.
Figure LR FS NC 001
Lo-Rib™ Installation Procedure
For installation procedures see section "Typical Pierce Fix Installation Guide". For general handling instructions refer to section “Maintenance and Care”.
Maximum Sheet Length
See section “Thermal Expansion and Contraction of Steel Sheeting”.