Lysaght Klip-Lok 700 Concealed-Fix Roofing — Commercial & Low-Pitch Specialist
Concealed-fix standing-seam roofing for commercial and industrial buildings. 700 mm cover width, 43 mm rib height, clip fastening with no exposed roof fasteners.
- BMT Range
- 0.42 – 0.60 BMT
- Category
- roofing
- Available Colours
- Monument, Ironstone, Night Sky, Woodland Grey, Surfmist, Dune
- 700 mm nominal cover width
- 43 mm rib height — Hi-Strength profile
- 1° min pitch on 0.48 BMT (design provisions apply)
- 0.42 to 0.60 BMT range
- Concealed clip-fix — no exposed roof fasteners
POA
Price on Application
This product is custom-cut, large-volume or project-specific. Submit a quote request and our trade desk will respond within 2 business hours.
Overview
Lysaght Klip-Lok 700 Hi-Strength is a wide-cover concealed-fix cladding profile for commercial and industrial roofing and walling. Clip fastening eliminates exposed fasteners through the weather face, giving a clean standing-seam appearance and reducing screw-hole leak risk on long-span roofs. Common applications include warehouses, retail centres, transport terminals, schools and sports facilities.
Per Lysaght specifications: 700 mm nominal cover width, 43 mm rib height, 0.42 to 0.60 BMT available. Minimum roof pitch is 1° (1 in 50) for 0.48 BMT and 2° for 0.42 BMT, subject to Lysaght design provisions including turned-up sheet ends below 15° pitch. CSA coordinates Klip-Lok 700 project supply with confirmed lead times, span tables and NCC Section J documentation on request.
Profiles and Specifications
Technical Specifications
| Profile type | Concealed-fix standing-seam (clip-fastened), roofing & walling |
|---|---|
| Nominal cover width | 700 mm |
| Rib height | 43 mm (Hi-Strength) |
| Base metal thickness | 0.42, 0.48 and 0.60 mm |
| Minimum roof pitch | 1° (1 in 50) at 0.48 BMT; 2° at 0.42 BMT |
| Fixing method | Concealed clips — no fasteners through the weather face |
| Maximum length | Limited only by transport / on-site rollforming |
| Steel base | BlueScope COLORBOND or ZINCALUME steel |
|---|---|
| Finishes | COLORBOND Classic, Matt, Metallic, Coolmax, Ultra; ZINCALUME |
| Yield strength | G550 (550 MPa minimum yield) |
| Coating | AM100 / AZ150 metallic alloy coating with Activate technology |
| Steel standard | AS 1397:2021 |
| Paint standard | AS/NZS 2728:2013 |
Span Tables
Maximum recommended support spacings for roof spans (normal conditions)
| BMT | Single span | End span | Internal span |
|---|---|---|---|
| 0.42 mm | 1650 mm | 1750 mm | 2200 mm |
| 0.48 mm | 2050 mm | 2350 mm | 2800 mm |
Indicative spacings under normal (non-cyclonic) conditions. Always confirm against Lysaght span tables for your wind classification and serviceability limits.
Fixing & Fasteners
- Concealed clips screw-fixed to purlins/battens; sheet pans have no exposed roof fasteners.
- Clip and fastener selection follows Lysaght design for wind classification and support type.
Matching Accessories
- Fixing clips (standard and floating / expansion)
- Ridge, barge and apron flashings to suit standing seam
- Pierced or expansion clips for long runs
- Safety mesh and insulation blanket systems
Installation & Handling
- Sheets clip onto pre-fixed clips and are walked down to engage — no roof penetrations, reducing leak risk on long, low-pitch roofs.
- For pitches below 15°, turn up the top end of sheets and seal under ridge flashings.
- Concealed-fix systems accommodate thermal expansion better than pierce-fixed roofing, suiting long commercial spans.
Warranty
Made from COLORBOND or ZINCALUME steel and backed by BlueScope warranties for eligible applications, subject to environment and correct installation.
Confirm and register warranty eligibility through BlueScope; this does not affect Australian Consumer Law rights.
Compliance
Standards & Certifications
High-tensile steel base
Cold-rolled from G550 steel (550 MPa minimum yield strength) with a metallic alloy coating, manufactured by BlueScope to the relevant Australian Standard.
AS 1397:2021
COLORBOND prepainted finish
COLORBOND prepainted steel finishes are manufactured to the Australian Standard for prepainted steel, incorporating Activate technology for corrosion resistance and (in core colours) Thermatech solar reflectance.
AS/NZS 2728:2013
Non-combustible material
Steel made by BlueScope has an Ignitability, Spread-of-Flame and Heat-Evolved index of 0 (zero), so it may be used wherever a non-combustible material is required under the National Construction Code (NCC 2022 C2D10).
AS/NZS 1530.3
Suitable for bushfire-prone areas
Steel roofing and walling can be specified from BAL-12.5 up to BAL-FZ (Flame Zone) using compliant system details under AS 3959 and the NASH Bushfire Standard, which the NCC references as a Deemed-to-Satisfy solution.
AS 3959 / NASH
Designed and installed to standard
Metal roofing and wall cladding is designed, tested and installed to the metal roofing/cladding code, with wind actions assessed to the wind loading standard.
AS 1562.1 / AS/NZS 1170.2
Datasheets, Guides & Certificates
Manufacturer documentation for specification and compliance. Links open the original source documents.
Dimensions, clip details, masses and span tables.
Design and construction detail for 1° low-pitch roofs.
Material specifications, support spacings, overhangs, fixing and handling for Lysaght profiles.
NCC clauses, applicable standards and warranty ranges for Lysaght steel roofing and walling.
Check eligibility and register a COLORBOND / ZINCALUME steel warranty for your project.
Colours Available
Use Cases
- Commercial warehouse / distribution
- Shopping centre & retail
- Airport & transport terminal
- Sports hall & arena
- School & TAFE campus
- Healthcare facility
- Government / defence
Applicable Standards
- AS 1562.1
- AS/NZS 1397
- NCC Section J
- AS/NZS 1170.2 wind loading
FAQ
Lysaght Klip-Lok 700 — Frequently Asked Questions
What is the minimum pitch for Klip-Lok 700?
Klip-Lok 700 Hi-Strength can go down to 1° (1 in 50) in 0.48 BMT, or 2° in 0.42 BMT, subject to Lysaght design provisions for low-pitch roofs.
Why choose concealed-fix over screw-fixed roofing?
Concealed clips remove fasteners from the weather face, giving a clean standing-seam look, fewer leak points, and better accommodation of thermal movement on long commercial spans.
What BMT options are available?
0.42, 0.48 and 0.60 mm. 0.60 mm is used for long spans and extreme-wind / cyclonic zones. CSA quotes the right gauge for your span and wind classification.
Resources
Guides for specifying and ordering
Selection Guide
How to Choose a Roof Profile: Corrugated, Trimdek, Spandek and Klip-Lok
A practical guide to choosing a steel roof profile in Australia. Compare corrugated, Trimdek, Spandek, Klip-Lok and Monoclad on pitch, span, cost and appearance.
Read guideHow-To
Roof Sheet Takeoff and Ordering: How to Measure and Buy Roofing
How to measure a roof and order the right number of steel sheets, screws, flashings and gutters. Cover widths, waste allowance and a worked takeoff example.
Read guideMore from Lysaght
View all
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