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FLEXLOK™ 400

LYSAGHT FLEX-LOK concealed standing seam system is a roofing system with an innovative architectural appearance. It can be roll formed in flat, curved or tapered shape as per various architectural requirements and provide architects with a more flexible and creative roofing solution.

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Standing Seam Roof Sheets

Specifications Features Standard Color Range Applications
Base Metal Thickness0.50 mm Depth65 mm Min. Roof Slope2 degree SteelZINCALUME ® steel, COLORBOND® XRW steel *Standard offering includes COLORBOND® XRW steel but other options like COLORBOND Ultra steel, COLORBOND® XPD steel and COLORBOND® Metallic steel can also be used after consultation from Tata BlueScope Steel authorities Steel GradeG300 (300 MPa yield strength)
Total Coated Thickness0.55 mm Effective cover width400 mm Coating Class (min.)ZINCALUME AZ150 (150g/m2) (55% Aluminium, 43.5% Zinc, 1.5% Si) as per AS1397 / IS15961 – with Super Durable Polyester COLORBOND®; steel XRW quality paint system of approved color conforming to AS/NZS 2728 type-4 / IS15965 class 3 ApplicationStanding Seam Roof Sheet
Note: Above spans are applicable up to wind speed of 39m/sec. Supports must be not less than 1 mm BMT. Please contact Tata BlueScope Steel office considering the above for designs.

Concealed fixed roofing

Concealed fix system requires no piercing fasteners and helps provide weather tightness and superior resistance to wind uplift. With no exposed fasteners, the straight lines of your roof remain clean and smooth.

Heat Insulated clip

The original heat insulated clip allows for movement which results from the thermal effect. This minimizes the need for step expansion joints.

Design flexibility

Available in tapered and curved sheets to fulfil the most challenging design criteria. Suitable for roofs with low slopes.

Better thermal performance

Specially engineered thermal pad slides neatly onto base of the clip which can reduce or eliminate thermal bridging effects.

On-Site Roll-Forming

LYSAGHT FLEXLOK™ 400 can be manufactured on site using world-class mobile roll-forming technology, which not only gives single length from the ridge of the roof to the eave, but also helps to make it a leak-proof structure with better control over quality installation.

Architectural Roofing Solution

High design flexibility with multiple profile shapes and on site roll forming makes FLEXLOK™ 400 a perfect architectural roofing solution.
  • SurfmistTM
  • HeadlandTM
  • Pale EucalyptTM
  • Cottage GreenTM
  • AquamarineTM
  • Sky BlueTM
  • Torres BlueTM
  • Toba BlueTM
  • Bare ZincalumeTM
Note: Above standard colour shades are given for guidance only. The Colour shades may look different due to print limitation. Please contact the nearest Tata BlueScope Steel sales office for any other colour shade enquiry. We would be glad to send an actual COLORBOND® colour sample or help with any other colour requirement.