- Three profiles: WS 1000-40-4, 970-41-4, 945-41-4
- Snap-on fixing over concealed clips – no exposed screws
- High-tensile G550 steel, 0.45–0.60 mm
- Fast installation without seaming
Concealed fixing without seaming
Clip-lock sheets are fixed by snapping the ribs over concealed clips screwed to the purlins. There are no fasteners through the sheet and no seaming machine is needed – a clean roof that installs quickly.
The high-tensile G550 substrate gives stiffness at thin gauges. Middle and side clips (CT-1 / CT-2 positions) hold every rib.
Profiles and technical data
| Code | Cover (mm) | Coil width (mm) | Rib (mm) | Thickness (mm) | Yield | Use |
|---|---|---|---|---|---|---|
| WS 1000-40-4 | 1000 | 1200 | 39 | 0.45–0.60 | G550 | Roof |
| WS 970-41-4 | 970 | 1200 | 41 | 0.45–0.60 | G550 | Roof |
| WS 945-41-4 | 945 | 1200 | 41 | 0.45–0.60 | G550 | Roof |
Good practice
- Lay sheets in the direction away from prevailing weather
- Check clip alignment every few purlins
- Engage the ribs fully along the whole length before walking on the sheet
- Use matching clips for each profile
In cyclonic regions, concealed-fix roofs must be tested and installed to the applicable cyclonic test and installation requirements.
Tiêu chuẩn và yêu cầu theo thị trường
Các quy chuẩn mà World Steel áp dụng để thiết kế, gia công và lập hồ sơ cho sản phẩm này – cùng các yêu cầu chính về hình học và tải trọng tại từng thị trường.
Hoa Kỳ
- ASTM A653 / A792Galvanized / 55 % Al-Zn coated sheet
- ASTM A755Coil-coated (pre-painted) metallic-coated sheet
- AISI S100Cold-formed steel design
- ASTM E1592 · UL 580Wind uplift testing of roof panels
Úc / NZ
- AS 1397Metallic-coated steel sheet – G300 to G550, Z / AZ coatings
- AS/NZS 2728Pre-finished / pre-painted sheet
- AS 1562.1Design and installation of metal roof and wall cladding
- AS 4040Methods of testing sheet roof and wall cladding (incl. cyclonic)
Châu Âu
- EN 10346Continuously hot-dip coated steel flat products
- EN 10169Organic coated (pre-painted) steel flat products
- EN 14782Self-supporting metal sheet for roofing and cladding – CE marking
- EN 1993-1-3Cold-formed members and sheeting
Nội dung chỉ mang tính tham khảo – chỉ dẫn kỹ thuật của dự án, phiên bản quy chuẩn được áp dụng và cơ quan có thẩm quyền là căn cứ quyết định.
Hoàn thiện bề mặt
| Hoàn thiện bề mặt | Tiêu chuẩn / ghi chú |
|---|---|
| Zinc-aluminium (AZ) coated | AZ100–AZ150 · AS 1397 / ASTM A792 / EN 10346 |
| Galvanized (Z) | Z180–Z275 · AS 1397 / ASTM A653 / EN 10346 |
| Pre-painted | Polyester or SMP paint system on AZ / Z substrate · AS/NZS 2728 / ASTM A755 / EN 10169 |
| Colours | Standard colour range; special colours on minimum order quantity |
Câu hỏi thường gặp
What is the difference between clip-lock and standing seam?
Clip-lock sheets snap onto clips and need no seaming; standing seam sheets are seamed together on site and allow more thermal movement on very long sheets.
Why is G550 steel used?
High-tensile G550 steel gives the stiffness the profile needs at 0.45–0.60 mm thickness.







