About S-Rib™ Corrugated
A reliable product that stands the test of time, Fielders® S-Rib™ Corrugated can be used in either roofing or walling applications. This profile is both popular and versatile, while being able to reflect either a modern or traditional design depending on the application. Complemented by Fielders® range of heritage products, beautiful authentic restorations can also be achieved. Available in 0.35mm, 0.42mm and 0.48 base metal thicknesses, as well as 0.60mm BMT ‘soft feed’ for bullnose and curved roofing.
Material Specifications
| Property | Notes | |||||
| Base Metal Thickness (mm) | 0.35 | 0.42 | 0.48 | 0.60 | BMT | |
| Total Coated Thickness (mm) | 0.40* | 0.47* | 0.53* | 0.65* | TCT | |
| Mass / Unit Length | ZINCALUME® | 2.75 | 3.30 | 3.70 | 4.70 | kg/m |
| COLORBOND® | 2.80* | 3.36* | 3.77* | 4.78* | ||
| Mass / Unit Area | ZINCALUME® | 3.60 | 4.34 | 4.87 | 6.18 | kg/m2 |
| COLORBOND® | 3.68* | 4.42* | 4.96* | 6.29* | ||
| 2nd moment of area about principal axis (103 mm4) | Ix | 11 | 14 | 15 | 19 | |
| Iy | 19510 | 23420 | 26760 | 33450 | ||
| Section modulus about principal axis (103 mm3) | Zx | 1 | 2 | 2 | 2 | |
| Zy | 47 | 56 | 64 | 80 | ||
| Warping Constant (109 mm6) | Iw | 1 | 1 | 1 | 1 | |
| Torsion Constant (mm4) | J | 13 | 23 | 35 | 68 | |
| Minimum Yield Strength | G550 | G550 | G550 | G300 | 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 |
||||
| Coverage (mm) | 762 | |||||
| Tolerance | Sheet Length ±7mm Cover Width ±4mm | |||||
| Thermal Expansion | 2.9mm average per 5m at 50°C change | |||||
Notes:
- S-Rib Corrugated is manufactured in accordance to AS 1445 and 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.
Rainfall Capacity
For further information, please refer to sections "Rainfall Intensity" and "Water Carrying Capacity and Rainwater Run-Off".
Figure SR RC NC 001
Load Span Tables
Wind Load Capacity: Limit State Design: 0.42mm BMT
| Span (mm) | Single Span | End Span | Internal Span | |||
| Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | |
| 600 | 5.39 | 12.00 | 6.08 | 12.00 | 1.91 | 11.35 |
| 900 | 3.20 | 12.00 | 4.27 | 12.00 | 1.67 | 9.25 |
| 1200 | 1.75 | 10.15 | 2.79 | 9.90 | 1.45 | 7.45 |
| 1500 | 0.94 | 8.10 | 1.59 | 7.55 | 1.23 | 6.00 |
| 1800 | 0.45 | 7.40 | 1.02 | 5.75 | 1.03 | 4.85 |
| 2100 | - | - | 0.65 | 4.50 | 0.85 | 3.90 |
| 2400 | - | - | 0.42 | 3.60 | 0.69 | 3.20 |
| 2700 | - | - | 0.30 | 3.05 | 0.56 | 2.70 |
Note:
- Values in the table above have been generated based on testing into steel supports with at thickness of 1.0mm.
- Values are based on no insulation under the sheeting.
- Serv. denotes serviceability
Wind Load Capacity: Limit State Design: 0.48mm BMT
| Span (mm) | Single Span | End Span | Internal Span | |||
| Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | |
| 600 | 7.48 | 12.00 | 8.00 | 12.00 | 1.98 | 12.00 |
| 900 | 3.74 | 12.00 | 4.75 | 12.00 | 1.96 | 10.15 |
| 1200 | 2.23 | 10.75 | 2.86 | 12.00 | 1.84 | 8.50 |
| 1500 | 1.26 | 8.65 | 1.97 | 10.60 | 1.62 | 7.10 |
| 1800 | 0.57 | 8.10 | 1.39 | 8.00 | 1.36 | 5.70 |
| 2100 | - | - | 0.97 | 6.20 | 1.07 | 4.55 |
| 2400 | - | - | 0.66 | 5.00 | 0.82 | 3.60 |
| 2700 | - | - | 0.44 | 4.25 | 0.62 | 2.90 |
Note:
- Values in the table above have been generated based on testing into steel supports with at thickness of 1.0mm.
- Values are based on no insulation under the sheeting.
- Serv. denotes serviceability
Wind Load Capacity: Limit State Design: 0.60mm BMT
| Span (mm) | Single Span | End Span | Internal Span | |||
| Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | Serv. (kPa) | Strength (kPa) | |
| 600 | 10.50 | 12.00 | 11.00 | 12.00 | 3.05 | 12.00 |
| 900 | 6.03 | 12.00 | 7.72 | 12.00 | 2.55 | 12.00 |
| 1200 | 2.62 | 12.00 | 4.80 | 12.00 | 2.11 | 9.15 |
| 1500 | 1.30 | 10.00 | 2.62 | 9.05 | 1.75 | 6.80 |
| 1800 | 0.62 | 8.35 | 1.40 | 7.35 | 1.48 | 5.65 |
| 2100 | 0.36 | 7.25 | 0.89 | 6.55 | 1.25 | 5.15 |
| 2400 | 0.32 | 6.35 | 0.73 | 6.20 | 1.05 | 4.95 |
| 2700 | - | - | 0.58 | 5.70 | 0.84 | 4.55 |
Note:
- Values in the table above have been generated based on testing into steel supports with at thickness of 1.0mm.
- Values are based on no insulation under the sheeting.
- Serv. denotes serviceability
Figure SR NC 002 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 SR NC 002 End Spans, Internal Spans and Overhangs
Maximum Recommended Roof Cladding Span
| Wind Region | Base Metal Thickness (mm) | Terrain Category 2 | Terrain Category 3 | ||||
| Single (mm) | End (mm) | Internal (mm) | Single (mm) | End (mm) | Internal (mm) | ||
| A | 0.42 | 700 | 900 | 1200 | 700 | 900 | 1200 |
| 0.48 | 800 | 1300 | 1700 | 800 | 1300 | 1700 | |
| 0.60 | 1400 | 1600 | 1800 | 1600 | 1600 | 1800 | |
| B | 0.42 | 700 | 900 | 1200 | 700 | 900 | 1200 |
| 0.48 | 800 | 1300 | 1700 | 800 | 1300 | 1700 | |
| 0.60 | 1350 | 1600 | 1800 | 1550 | 1600 | 1800 | |
Importance Level 2
Maximum Roof Height H = 10m
External Pressure Coefficient:
Cpe = -0.65 for walling
Cpe = -0.9 for roofing
Internal Pressure Coefficient:
Cpi = 0.2
Local Pressure Factor:
KL = 2.0 (end & single span)
KL = 1.0 (internal span)
Table SR RS NC 001 - S-Rib™ Corrugated Non-Cyclonic
Notes:
- Maximum roofing spans comply with both strength and serviceability wind pressure requirements.
- Spans shown in italics are limited by foot traffic requirements.
- Unstiffened eaves overhang is 200mm for 0.42mm BMT and 250mm 0.48mm BMT
- Stiffened eaves overhand is 300mm for 0.42 BMT and 250mm for 0.48 BMT
Maximum Recommended Wall Cladding Span
| Wind Region | Base Metal Thickness (mm) | Terrain Category 2 | Terrain Category 3 | ||||
| Single (mm) | End (mm) | Internal (mm) | Single (mm) | End (mm) | Internal (mm) | ||
| A | 0.42 | 1350 | 1650 | 2350 | 1550 | 1900 | 3000 |
| 0.48 | 1450 | 1900 | 2700 | 1600 | 2150 | 3000* | |
| 0.60 | 1550 | 2050 | 2600 | 1750 | 2300 | 3000* | |
| B | 0.42 | 1300 | 1600 | 2150 | 1600 | 2150 | 3000* |
| 0.48 | 1400 | 1800 | 2500 | 1550 | 2050 | 3000* | |
| 0.60 | 1500 | 2000 | 2500 | 3200 | 2250 | 2950 | |
Importance Level 2
Maximum Roof Height H = 10m
External Pressure Coefficient:
Cpe = -0.65 for walling
Cpe = -0.9 for roofing
Internal Pressure Coefficient:
Cpi = 0.2
Local Pressure Factor:
KL = 2.0 (end & single span)
KL = 1.0 (internal span)
Table SR WS NC 001 - S-Rib™ Corrugated Non-Cyclonic
Note:
- Maximum walling spans comply with both strength and serviceability wind pressure requirements.
- Spans in excess of 3000mm may be available subject to enquiry. Wall applications or long spans require particular attention to installation practice.
- Overhang is 200mm for 0.42mm BMT and 250mm 0.48mm BMT
Maximum Recommended Roof Cladding Spans Based on Foot Traffic
| Base Metal Thickness (mm) | Single (mm) | End (mm) | Internal (mm) |
| 0.42 | 700 | 900 | 1200 |
| 0.48 | 800 | 1300 | 1700 |
| 0.60 | 1600 | 1600 | 1800 |
Notes:
- Unstiffened eaves overhang is 200mm for 0.42mm BMT and 250mm 0.48mm BMT
- Stiffened eaves overhand is 300mm for 0.42 BMT and 250mm for 0.48 BMT
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 | Crest Fixing | Valley Fixing (Wall only) | Side Lap Fixing |
| Steel 1.0 to 3.5mm | 12-14x50mm Metal Teks hexagon head with seal | 10-16x16mm Metal Teks hexagon head with seal | 10-16x16mm hexagon head Teks screws with seal |
| Timber Hardwood | M6-11x65mm RoofZips hexagon head with HiGrip & seal | M6-11x25mm RoofZips hexagon head with seal |
|
| Timber Softwood | M6-11x65mm RoofZips hexagon head with HiGrip & seal | M6-11x25mm RoofZips hexagon head with seal |
|
| Metal Battens (0.55 to 1.0mm) | M6-11x50mm RoofZips hexagon head with HiGrip & seal | 15-15x25mm Metal Batten Teks hexagon head with seal |
Fastener Spacings - Non-Cyclonic
Crest Fastener Location
5 Fasteners per sheet – end supports and end laps.
3 Fasteners per sheet – Internal supports.
Roofing should be lapped away from the prevailing weather.
Valley Fastener Location (Wall Only)
5 Fasteners per sheet – end supports and end laps.
3 Fasteners per sheet – Internal supports.
Table SR FS NC 001
Notes:
1. All fasteners used externally should be fitted with an EPDM seal (washer).
2. Do not use punches to form fastener holes.
Side Lap Fastening
It may be necessary to use side lap fasteners at mid spans when using S-Rib at maximum spans. These will help to hold the sheet laps firmly in place and maintain a weather-proof joint.
Insulation
Care needs to be taken when installing insulation with roof sheeting. When insulation thickness up to 50mm are installed the screws detailed in Table SR PF NC 001 may need to be increased depending on the thickness and density of the insulation. When the screw is properly tightened into metal there should be a minimum of three (3) threads protruding past the support being fixed in to. For timber the screw must penetrate the timber as much as the screws detailed in Table SR PF NC 001 do without insulation.
For insulation thicknesses greater than 50mm Fielders® recommend the use of a thermal spacer to help maintain Rw values as well as minimising any bulging in the profile caused by the insulation.
Curving S-Rib™ Corrugated
For details regarding spring, crank and smooth curving of S-Rib sheets, please see section “Curving of Steel Decks”.
Curving quality corrugated is manufactured from G300 sub-strate (0.60 BMT). It is consequently more ductile, enabling specialist tradesmen using precision curving machines to form sheets to traditional heritage shapes and challenging architectural details down to radii as tight as 450mm. Fielders® have a dedicated roll forming machine for G300 thus avoiding any inconsistency arising out of changing over from G550 Hi-tensile coil.
S-Rib™ Corrugated Installation Procedure
For installation procedures see section “Typical Pierce Fix Installation Guide”. For general handling instructions refer to section “Maintenance and Care”.
Figure SR NC Corrugation Laps 003
Maximum Sheet Length
See section “Thermal Expansion and Contraction of Steel Sheeting”.
Turning of Roof Sheeting Ends
Refer to section “Flashings, Cappings & Ends of sheets”.
Curving Orders
When ordering curved sheets, please state the following:
|
ZINCALUME® |
Sheets |
|
COLORBOND® |
Sheets |
|
Color |
Sheets |
|
Direction of laying (facing roof) |
|
|
Left to right |
Sheets |
|
Right to Left |
Sheets |
|
Overall Length of Sheet (Allow 50mm into Gutters) |
mm |
Bullnosed
|
A |
Radius (minimum 500mm) |
mm |
|
B |
Pitch or fall |
mm |
|
D |
Wall to outside fascia |
mm |
|
E |
Straight length |
mm |
|
H |
Height |
mm |
Figure SR NC Bullnosed Dimensions 004
Concave
|
D |
Wall to outside fascia |
mm |
|
H |
Height |
mm |
|
X |
Dip from Straight Line |
mm |
Figure SR NC Concave Dimensions 005
Bull Nosing
Curving to Underslung or Overslung
Radius Curve (Deep Curve)
‘S’ Curve
Ridge Curve and Bullnoosing with extended straight section
Figure SR NC Typical Curves 006
Curved Flashings
SuperDura™ and ZINCALUME® steel roofing gives the designer or architect greater flexibility than other roofing materials. Fielders® curved flashings offer an attractive, watertight method of finishing off barges. Fielders® sheet-metal workshop uses either Pittsburgh or Snap-Lock seams to achieve a curved profile flashing. Acrylead and flexible Dektite flashings may also be used.
Figure SR NC Pittsburgh Lock-Seam and Snap-Lock 007
Curved Flashing Available Materials
| Finish | Conforming to Standard | BMT | Colour |
| ZINCALUME® | AS 1397 G300-AZ150 | 0.50 | N/A |
| COLORBOND® XRW | AS 1397 G300-AZ150 and AS 2728 | 0.50 | As selected |
| COLORBOND® Ultra Steel | AS 1397 G300-AZ200 and AS 2728 | 0.55 | As selected |
| SuperDura™ Stainless Steel | Grade 430 base 300 | 0.45 | As selected |
| Z600 Heritage Galvanised | AS 1397 G300-Z600 | 0.50 | N/A |
Hip Bracing
Figure SR NC Type A Hip Bracing 008
Figure SR NC Type B Hip Bracing 009
Cappings
Refer to section “Cappings”.
Perforated Metal
S-Rib corrugated is also available ex stock in 0.48 BMT ZINCALUME® steel , conforming to AS 1397:2001 G550- AZ150, or in COLORBOND® steel (Surfmist only) to AS 1397:2001 G550-AZ150 with 2.38mm diameter holes at 6.74 pitch providing 11% open area. Other materials and gauges with different hole sizes and pitches are available upon request.
S-Rib™ Corrugated Flashings & Details
Masonry Parapet Side Wall (Low)
Product Code: CF1
Masonry Parapet Side Wall (High)
Product Code: CF2
Apron Flashings
Product Code: CF3
GIRTH 300
Overflashing
Product Code: CF4
GIRTH 112
Headwall Apron Flashing
Product Code: CF5
GIRTH 300
Soaker Gutter
Product Code: CF6
GIRTH 350
Soffit Corner Flashing
Product Code: CF7
GIRTH 150
Shoe Flashing
Product Code: CF8
Offset Wall Flashing
Type 1
Product Code: CF9
GIRTH 150
Offset Wall Flashing
Type 2
Product Code: CF10
Valley Gutter
Product Code: CF11
GIRTH 324
Under Over Flashing
Product Code: CF12
GIRTH 300
Mansard Roof Flashing
Product Code: CF13
GIRTH 330
Industrial Door Jamb Flashing
Product Code: CF14
GIRTH 150
Opening Jamb Flashing
Product Code: CF15
Door Head Flashing
Product Code: CF16
GIRTH 100
Apex Capping
Type 1
Product Code: CF17
GIRTH 270
Apex Capping
Type 2
Product Code: CF18
GIRTH 260
Back Channel
Product Code: CF19
GIRTH 100
External Corner & Barge Capping
Product Code: CF20
GIRTH 330
Internal Corner Capping
Product Code: CF21
GIRTH 330
Barge Capping
Product Code: CF22
GIRTH 230
Fragmented Parapet Capping
Product Code: CF23
Two Piece Step Flashing
Product Code: CF24
Table SR FD NC 001
Notes:
1. *denotes size to be determined by application. All sizes are in mm and should be used as a guide only. They should be measured on-site to determine actual size.
2. S.B. denotes ‘Slight Break’.
3. Also refer to “Typical Roofing Details”.