LYSAGHT®
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LYSAGHT SPANDEK®
Product Description and Features
LYSAGHT SPANDEK® is a contemporary looking, trapezoidal profile which is ideal where a stronger, bolder, more modern corrugated appearance is required. It combines strength with lightness, rigidity and economy.
- Can be used for both roofing and walling
- Custom cut lengths to avoid waste. One sheet from roof ridge to gutter, no end laps (provided length can be safely transported)
- Allows wide support spacings. Regular product, internal spans up to 3000mm for roofing and up to 3300mm for walling (0.48mm BMT) for normal weather conditions
- Snug nesting of ribs ensures neat side laps
- Long, straight lengths can be lowered into place and easily aligned
- A special anti-capillary groove in the side lap allows use on roof pitches as low as 3 degrees (1 in 20)
Common Uses of this product
Roofing and walling in industrial, commercial, and residential applications.
Warnings
- Minimum roof pitch of 3 degrees (1 in 20)
- Ensure selection of suitable material for environmental conditions for maximum durability
- Lead and copper are not compatible with ZINCALUME® steel or COLORBOND® steel
- Read full details on Guidelines for using COLORBOND® steel & ZINCALUME® steel.
Product Details
Schematic

Tolerances
Length: +0 mm, -15 mm
Cover Width: +4 mm, -4 mm
Lengths
Sheets are supplied custom cut.
Material Specification
- ZINCALUME® steel made from zinc-aluminium alloy coated steel complying with AS1397-2001, G550 (550MPa minimum yield stress), AZ150 (150g/m2 minimum coating mass)
- COLORBOND® prepainted steel complying with AS/NZS 2728:Type 4, is made from zinc-aluminium alloy coated steel complying with AS1397-2001, G550 (550MPa minimum yield stress), AZ150 (150g/m2 minimum coating mass) or AZ200 (200g/m2 minimum coating mass), or
- COLORBOND® prepainted steel complying with AS/NZS 2728:Type 6, is made from stainless steel complying with JIS G 4305, Grade 430 stainless steel, 430SS550. Subject to enquiry, or
- The base metal thickness is 0.42mm or 0.48mm
Colour Range
LYSAGHT® products are normally available in the standard range of COLORBOND® steel colours. View the standard colour range for:
COLORBOND® steel or
COLORBOND® Ultra and COLORBOND® Stainless steel or
Colour Chart for COLORBOND® Metallic steel
Please check with your local supplier regarding specific colour availability for individual products.
Maximum Support Spacings
The maximum recommended roof support spacings are based on testing in accordance with AS1562.1-1992, AS4040.1-1992, and AS4040.2-1992.
Roof spans consider both resistance to wind pressure and light foot traffic (traffic arising from incidental maintenance).
Wall spans consider resistance to wind pressure only.
The pressure considered is based on buildings up to 10 m high in Region B, Terrain Category 3, Ms=0.85, Mi=1.0, Mt=1.0, with the following assumptions made:
Roofs:
Cpi=+0.20, Cpe=-0.90, and K l=2.0 for single and end spans, Kl=1.5 for internal spans.
Walls:
Cpi=+0.20, Cpe=-0.65, and K l=2.0 for single and end spans, Kl=1.5 for internal spans.
These spacings may vary by serviceability and strength limit states for particular projects.
| Maximum Recommended Support Spacings (mm) | ||
|---|---|---|
| Type of Span | Thickness (mm) BMT | |
| 0.42 | 0.48 | |
| Roofs | ||
| Single Span End Span Internal Span Unstiffened Eaves Overhang Stiffened Eaves Overhang |
1300 1800 2400 300 600 |
2000 2200 3000 400 700 |
| Walls | ||
| Single Span End Span Internal Span Overhang |
2500 3000 3300 300 |
3000 3000 3300 400 |
- For roofs: the data are based on foot-traffic loading.
- For walls: the data are based on pressures (see wind pressures tables).
- Table data are based on supports of 1mm BMT.
- Spacing is based on 4 fasteners per sheet per support.
Limit States Wind Pressures
The wind pressure capacity table can be viewed in the LYSAGHT SPANDEK® brochure. Download LYSAGHT SPANDEK® (860 KB)
This information is suitable for use only in areas where a tropical cyclone is unlikely to occur, as defined in AS 1170.2 - 2002.**
** More information on the relevant Standards can be found at the Standards Australia Website.
For correct specification and installation of BlueScope Lysaght roofing and walling products in cyclonic areas, please Download LYSAGHT® Cyclonic Area Design Manual Steel Roofing & Walling (306 KB).
Roof Drainage Capacity
Penetrations will alter the flow of water on a roof. For assistance in design of roofs with penetrations please Contact Us.
| Maximum roof lengths for drainage: measured from ridge to gutter (m) | ||||||
|---|---|---|---|---|---|---|
| Peak rainfall intensity mm/hr | Roof slope | |||||
| 1° | 2° | 3° | 5° | 7.5° | 10° | |
| 100 | - | - | 111 | 133 | 154 | 173 |
| 150 | - | - | 74 | 89 | 103 | 115 |
| 200 | - | - | 55 | 67 | 77 | 86 |
| 250 | - | - | 44 | 53 | 62 | 69 |
| 300 | - | - | 37 | 44 | 51 | 58 |
| 400 | - | - | 28 | 33 | 39 | 43 |
| 500 | - | - | 22 | 27 | 31 | 35 |
Warranty
LYSAGHT® roofing has a materials warranty of up to 25 years for corrosion to perforation and a performance warranty of up to 25 years provided it is fixed to specification.
FAQs

