Lo-Rib™ Non-Cyclonic


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

Base Metal Thickness (mm)0.350.42BMT
Mass / Unit AreaZINCALUME®3.233.84kg/m2
Minimum Yield StrengthG550Base Steel Designation
Coating ClassZ600 (Heritage Galvanised)
AM100 (COLORBOND® Steel)
AM150 (COLORBOND® Ultra Steel)
Z450 (Galvanised)
Minimum Coating g/m2 of Zinc -
Coverage (mm)840
ToleranceLength: +0mm, -15mm, Width: +4mm, -4mm
Table LR MS NC 001A - Lo-Rib™
  1. 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.
  2. The sectional properties are theoretical values per sheet width. These properties are gross values only.
  3. *is based on Standard COLORBOND®; single-sided material. For other painted steel options please contact a Fielders® representative.

Maximum Recommended Span* (mm)

Span Type0.35 BMT0.42 BMT
End Span9001350
Internal Span18001800
Single Span14001700
Table LR RS NC 001A - Lo-Rib™


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.

Lo-Rib™ NON-CYCLONIC Figure LR NC 001 End Spans, Internal Spans and Overhangs

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 SupportsValley Fixing (Wall Only)
1.0 to 3.5mm
10-16x16, Metal Teks, HH
M5-16x25 Designer Head
Timber Hardwood & Softwood10-12x25, Type 17, HH
M5-16x25 Designer Head
Table LR PF NC 001A - Lo-Rib™
  1. For other steel thicknesses not specified please seek advice from screw manufacturer.
  2. Values given are: gauge/threads per inch/ lengths (mm). HH = Hex. Head, WH = Wafer Head, HG = Hi-Grip
  3. Care is required during installation to prevent stripping of thin material. (Single ply.)
  4. Screw specification as above or equivalent fastener.
  5. 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