About HiRib™ 680
Manufactured from High-Tensile steel, Fielders HiRib™ 680 boasts a bold, deep troughed profile. Able to be fixed down to a 1 degree pitch, achieving multiple spans of up to 3.4 meters, the uses for HiRib™ 680 are numerous. Domestic applications such as carport and veranda roofing to commercial and industrial roofing and walling projects, HiRib™ 680 has you covered. The strong profile of HiRib™ 680 roofing combined with a lighter gauge high-tensile steel provides optimum strength, allowing for larger spans at a minimum cost, plus making walking between ribs safer for maintenance purposes. HiRib™ 680 has fewer fasteners which means less installation time making this a very practical and highly affordable product and perfect budget solution.
Available in an extensive range of colours and finishes in COLORBOND® steel and ZINCALUME®, HiRib™ 680 is sure to blend seamlessly or contrast brilliantly with the surrounding environment.
Material Specifications
| Property | Notes | ||||
| Base Metal Thickness (mm) | 0.42 | 0.48 | 0.60 | BMT | |
| Total Coated Thickness (mm) | 0.47* | 0.53* | 0.65* | TCT | |
| Mass / Unit Length | ZINCALUME® | 3.30 | 3.77 | 4.70 | kg/m |
| COLORBOND® | 3.36* | 3.84* | 4.78* | ||
| Mass / Unit Area | ZINCALUME® | 4.34 | 4.96 | 6.18 | kg/m2 |
| COLORBOND® | 4.42* | 5.05* | 6.29* | ||
| 2nd moment of area about principal axis (103 mm4) | Ix | 124 | 142 | 163 | |
| Iy | 20090 | 22960 | 26300 | ||
| Section modulus about principal axis (103 mm3) | Zx | 4 | 4 | 5 | |
| Zy | 52 | 60 | 68 | ||
| Warping Constant (109 mm6) | Iw | 7 | 8 | 9 | |
| Torsion Constant (mm4) | J | 23 | 35 | 52 | |
| 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 |
|||
| Coverage (mm) | 680 | ||||
| Tolerance | Sheet Length ±7mm Cover Width ±4mm | ||||
| Thermal Expansion | 2.9mm average per 5m at 50°C change | ||||
Note:
- HiRib™ 680 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.
Rainfall Capacity
For further information, please refer to sections "Rainfall Intensity" and "Water Carrying Capacity and Rainwater Run-Off".
Figure HR RC CY 001
Maximum Roof Length (m)
| Roof Slope (degrees) | Rainfall Capacity (mm/hr) | ||||||
| 100 | 150 | 200 | 250 | 300 | 350 | 400 | |
| 1 | 439 | 293 | 219 | 176 | 146 | 125 | 110 |
| 2 | 621 | 414 | 310 | 248 | 207 | 177 | 155 |
| 3 | 760 | 507 | 380 | 304 | 253 | 217 | 190 |
| 4 | 878 | 585 | 439 | 351 | 293 | 251 | 219 |
| 5 | 981 | 654 | 491 | 393 | 327 | 280 | 245 |
Note:
- Minimum recommended slope is 1°.
- Sheet lengths greater than 24m are not recommended due to thermal expansion and contraction.
Cyclonic Testing
Fielders® have undertaken cyclonic testing of HiRib™ 680 in accordance with AS4040.0-1992.
The cyclonic wind load capacities for Hi-Rib roofing profile are shown in Table HR WC CY 001 below.
Wind Load Capacity: Limit State Design: 0.42mm BMT
| Span (mm) | Single Span (kPa) | Double Span (kPa) | Multi Spans (kPa) | |
| End Span | Internal Span | |||
| 900 | 11.83 | 6.81 | 5.71 | 5.71 |
| 1200 | 8.22 | 5.09 | 4.78 | 5.57 |
| 1500 | 5.37 | 3.95 | 3.44 | 4.77 |
| 1800 | 3.29 | 3.47 | 1.70 | 3.72 |
| 2100 | - | - | - | 2.44 |
Note:
- 0.42 & 0.48mm BMT is G550 and 0.55mm BMT is G300.
- Values are based on no insulation under the sheeting.
Wind Load Capacity: Limit State Design: 0.48mm BMT
| Span (mm) | Single Span (kPa) | Double Span (kPa) | Multi Spans (kPa) | |
| End Span | Internal Span | |||
| 900 | - | - | 6.30 | 6.30 |
| 1200 | 9.46 | 5.30 | 4.81 | 6.30 |
| 1500 | 6.47 | 4.40 | 3.56 | 4.85 |
| 1800 | 4.43 | 3.60 | 2.22 | 3.77 |
| 2100 | 3.32 | 2.89 | - | 2.84 |
Note:
- 0.42 & 0.48mm BMT is G550 and 0.55mm BMT is G300.
- Values are based on no insulation under the sheeting.
Wind Load Capacity: Limit State Design: 0.55mm BMT
| Span (mm) | Single Span (kPa) | Double Span (kPa) | Multi Spans (kPa) | |
| End Span | Internal Span | |||
| 900 | 14.63 | 6.84 | 5.98 | 5.98 |
| 1200 | 8.95 | 5.63 | 4.84 | 5.82 |
| 1500 | 5.31 | 4.56 | 3.58 | 4.85 |
| 1800 | 3.71 | 3.63 | 2.19 | 3.84 |
| 2100 | - | - | - | 2.78 |
Note:
- 0.42 & 0.48mm BMT is G550 and 0.55mm BMT is G300.
- Values are based on no insulation under the sheeting.
Figure HR CY 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 HR CY 001 End Spans, Internal Spans and Overhangs
Cyclonic Load Span Tables - Region C
Maximum Allowable Roof Spans for building heights ≤ 5m: Region C: 0.42mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.18 | 1660 | 1430 | 1350 | 1680 |
| F - 5.35 | 1500 | 1150 | 1330 | 1290 | |
| G - 6.53 | 1370 | 940 | - | - | |
| 2.5 | D - 3.54 | 1760 | 1720 | 1480 | 1850 |
| F - 4.54 | 1610 | 1330 | 1260 | 1570 | |
| G - 5.54 | 1480 | 1110 | 960 | 1210 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 001A - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights ≤ 5m: Region C: 0.48mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.18 | 1850 | 1580 | 1350 | 1680 |
| F - 5.35 | 1650 | 1180 | 1090 | 1370 | |
| G - 6.53 | 1490 | 830 | 860 | 1100 | |
| 2.5 | D - 3.54 | 2010 | 1820 | 1500 | 1870 |
| F - 4.54 | 1780 | 1450 | 1270 | 1580 | |
| G - 5.54 | 1520 | 1130 | 1050 | 1330 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 001B - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights ≤ 5m: Region C: 0.55mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.18 | 1660 | 1620 | 1360 | 1700 |
| F - 5.35 | 1490 | 1270 | 1070 | 1350 | |
| G - 6.53 | 1380 | 970 | 740 | 970 | |
| 2.5 | D - 3.54 | 1890 | 1830 | 1510 | 1880 |
| F - 4.54 | 1600 | 1510 | 1280 | 1590 | |
| G - 5.54 | 1470 | 1220 | 1020 | 1290 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 001C - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region C: 0.42mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.63 | 1660 | 1310 | 1240 | 1540 |
| F - 5.93 | 1430 | 1040 | 800 | 1030 | |
| G - 7.23 | 1300 | 840 | - | - | |
| 2.5 | D - 4.13 | 1670 | 1450 | 1360 | 1690 |
| F - 5.30 | 1510 | 1160 | 1050 | 1310 | |
| G - 6.46 | 1380 | 950 | - | - | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 002A - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region C: 0.48mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.63 | 1760 | 1420 | 1250 | 1560 |
| F - 5.93 | 1570 | 1010 | 970 | 1230 | |
| G - 7.23 | 1410 | - | - | 950 | |
| 2.5 | D - 4.13 | 1860 | 1600 | 1360 | 1700 |
| F - 5.30 | 1650 | 1200 | 1100 | 1390 | |
| G - 6.46 | 1500 | 850 | 870 | 1110 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 002B - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region C: 0.55mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 4.63 | 1590 | 1480 | 1250 | 1570 |
| F - 5.93 | 1430 | 1120 | 910 | 1160 | |
| G - 7.23 | 1320 | 810 | - | - | |
| 2.5 | D - 4.13 | 1670 | 1630 | 1370 | 1710 |
| F - 5.30 | 1500 | 1290 | 1080 | 1360 | |
| G - 6.46 | 1380 | 990 | 760 | 990 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 002C - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Cyclonic Load Span Tables - Region D
Maximum Allowable Roof Spans for building heights ≤ 5m: Region D: 0.42mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 6.66 | 1365 | 925 | 595 | 790 |
| F - 8.54 | 1175 | 600 | - | - | |
| G - 10.41 | 1020 | 1270 | - | - | |
| 2.5 | D - 5.65 | 1470 | 1100 | 920 | 1170 |
| F - 7.24 | 1305 | 825 | 405 | 575 | |
| G - 8.83 | 1150 | 550 | - | - | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 003A - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights ≤ 5m: Region D: 0.48mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 6.66 | 1480 | 745 | 830 | 640 |
| F - 8.54 | 1290 | 120 | 450 | - | |
| G - 10.41 | 1105 | - | - | - | |
| 2.5 | D - 5.65 | 1620 | 1805 | 1030 | 1335 |
| F - 7.24 | 1425 | 555 | 710 | 460 | |
| G - 8.83 | 1265 | - | 390 | - | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 003B - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights ≤ 5m: Region D: 0.55mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 6.66 | 1390 | 945 | 720 | 940 |
| F - 8.54 | 1235 | 480 | 225 | 360 | |
| G - 10.41 | 1125 | - | - | - | |
| 2.5 | D - 5.65 | 1470 | 1195 | 985 | 1225 |
| F - 7.24 | 1340 | 800 | 565 | 760 | |
| G - 8.83 | 1210 | 405 | 150 | 270 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 003C - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region D: 0.42mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 7.38 | 1270 | 800 | 360 | 520 |
| F - 9.46 | 1095 | 440 | - | - | |
| G - 11.54 | 925 | - | - | - | |
| 2.5 | D - 6.59 | 1370 | 940 | 615 | 820 |
| F -8.45 | 1180 | 615 | - | - | |
| G - 10.30 | 1025 | 290 | - | - | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 004A - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region D: 0.48mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 7.38 | 1410 | 505 | 685 | 975 |
| F - 9.46 | 1200 | - | 265 | 545 | |
| G - 11.54 | 990 | - | - | 115 | |
| 2.5 | D - 6.59 | 1490 | 770 | 840 | 1140 |
| F -8.45 | 1300 | 150 | 465 | 755 | |
| G - 10.30 | 115 | - | - | 370 | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 004B - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Maximum Allowable Roof Spans for building heights 5m-10m: Region D: 0.55mm BMT
| Terrain Category | Roof Area Notation & Uplift (kPa)* | Single Span (mm) | Double Span (mm) | Multi Spans (mm) | |
| End Span | Internal Span | ||||
| 1 & 2 | D - 7.38 | 1330 | 765 | 530 | 720 |
| F - 9.46 | 1175 | 250 | - | - | |
| G - 11.54 | 1065 | - | - | - | |
| 2.5 | D - 6.59 | 1395 | 960 | 740 | 960 |
| F -8.45 | 1240 | 500 | 250 | 385 | |
| G - 10.30 | 1130 | - | - | - | |
Pa,r = 1:500
Vr = 66 m/s for Region C
Vr = 88 m/s for Region D
Md = 1.00
FC = 1.05
FD = 1.1
Ms = 1.00
Mt = 1.00
Cp,i = 0.70
Cp,e = - 0.90
KL = 1.5 for Area F
KL = 2.0 for Area G
Table HR RS CY 004C - HiRib™ 680 Cyclonic
Note:
- * Pressure is total ultimate value
Allowable Spans
The allowable roof spans for the HiRib™ 680 roofing profile in Regions C and D are shown in Table HR RS CY 001 and Table HR RS CY 002.
The allowable spans have been determined from tests carried out in accordance with AS4040.0-1992, AS 1170.2-2011 and the NCC (BCA) 2016 Specification B1.2 for the design of buildings in cyclonic areas.
Figure HR CY Local Pressure Factors 002
Note:
The local pressure factors (KL) are shown in Figure HR CY Local Pressure Factors 002 are not applicable at the ridge where the roof pitch is less than 10°. The value of ‘a’ is the minimum of 0.2 breadth, 0.2 width or the height.
Fixing of Cladding
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.
All fasteners used externally should be fitted with an EPDM seal. Do not use punches to form fastener holes. Fasteners are to be fixed at each crest of the HiRib™ 680 roof sheeting.
For further information on the HiRib™ 680 roofing profile, including installation procedures, refer to Specifying Fielders® – Roofing & Walling manual.
Notes:
1. All fasteners used externally should be fitted with an EPDM seal (washer).
2. Do not use punches to form fastener holes.
3. HiRib™ 680 Cyclonic uses 14g-10x75mm Hex Head Screws with a cyclonic plate seal.
Side Lap Fastening
It may be necessary to use side lap fasteners to maintain a weatherproof side lap. One or more fasteners are recommended when using HiRib™ 680 at maximum spans, for walling cladding. Lap fasteners are also required alongside each valley fastener.
HiRib™ 680 Installation Procedure
For installation procedures see section “Typical Pierce Fix Installation Guide”. For general handling instructions refer to section “Maintenance and Care”.
Turning of Roof Sheeting Ends
Refer to section “Flashings, Cappings & Ends of Sheets”.
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 HR PF CY 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 HR PF CY 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.
Maximum Sheet Length
See section “Thermal Expansion and Contraction of Steel Sheeting”.
HiRib™ 680 Flashings & Details
Masonry Parapet Side Wall (Low)
Product Code: HR1
Masonry Parapet Side Wall (High)
Product Code: HR2
Apron Flashings
Product Code: HR3
GIRTH 330
Overflashing
Product Code: HR4
Girth 112
Headwall Apron Flashing
Product Code: HR5
Girth 350
Soaker Gutter
Product Code: HR6
Girth 350
Soffit Corner Flashing
Product Code: HR7
Girth 211
Shoe Flashing
Product Code: HR8
Bracket
Product Code: HR10
Valley Gutter
Product Code: HR11
Girth 340
Under Over Flashing
Product Code: HR12
Girth 330
Mansard Roof Flashing
Product Code: HR13
Girth 330
Industrial Door Jamb Flashing
Product Code: HR14
Girth 182
Apex Capping
Type 1
Product Code: HR17
Girth 300
Apex Capping
Type 2
Product Code: HR18
Girth 285
Back Channel
Product Code: HR19
Girth 130
Barge Capping Steel Construction
Product Code: HR20
Girth 300
Barge Capping
Product Code: HR22
Girth 300
Framed Parapet Capping
Product Code:HR23
Two Piece Step Flashing
Product Code: HR24
Sliding Bracket
Product Code: HR25
Table HR FD CY 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’.
Also refer to “Typical Roofing Details