The Quattro 25mm Double Standing Seam is an architectural style profile, with a traditional and refined aesthetic. This profile uses concealed fixing and crimping techniques to lap panels along entire lengths, making the Quattro 25mm Double Standing Seam one of the strongest products on the market. In addition to good looks and strength, the Quattro 25mm Double Standing Seam offers superior wind and water resistance. Add value to your home with this modern profile. 

*For more technical information, please either download the factsheet or contact a Steelformers representative.

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  • Suitable for residential, light commercial and commercial roofing and cladding applications

  • Available in 0.55mm BMT (G300) COLORSTEEL® ENDURA® AND MAXX®, 0.75mm BMT Copper, 0.9mm BMT mill finish aluminium and ColorCote® AlumiGard (available on request, conditions apply)

  • In accordance with Acceptable Solution E2, the minimum roof pitch is 3°

  • Rollformed in our New Plymouth factory 

  • Sheet lengths are custom run to order

  • Fixed over solid ply substrate with concealed clip fixing (for roofing), fixed over 20mm cavity batten with ply substrate (for wall cladding)

  • 35mm standard rib height

  • Pan widths are customisable to the customers reference, our standard pan widths are (rib to rib) 440mm and 530mm

Pans & Swages

It is standard Steelformers practice that the pans are run with swages, for extra rigidity and strength, and for reducing wind-driven roof noise. If the customer wants to run the pans without swages to achieve a smooth finish, it is at the discretion of Steelformers and is judged on a case by case basis. In very high and extra-high wind zones it is mandatory to run the pans with swages. 

Fasteners & Fixings

Quattro 25mm Double Standing Seam roofing must always be installed over a solid plywood substrate, with purlin supports underneath. The required plywood substrate must be a minimum 12mm thick plywood sheet, structurally fixed to the frame in accordance with the New Zealand Building Code.

The following shows the recommended clip fixing positions per wind zone. 

450mm purlin centres, with min. 12mm ply substrate

Clips fixed at 405mm centres


N.B. In very high and extra-high wind zones it is mandatory to run the pans with swages. 


This is a general guide only, for further information please refer to the NZMRM Code of Practice or consult a Steelformers representative. 

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