Aurubis Snaplock® Seam

The Snaplock® seam system is extensively used in Europe and the United States of America, where the system has proved itself in the extremely varied climate. The system gives an aesthetically pleasing finish whilst avoiding the industrial finishes found in other seam systems.

Features and benefits:

  • Manufactured from lightweight corrosion resistant phosphorus deoxidized copper (Cu-DHP, 99.9% pure) which complies with EN 1172.
  • Exceptional, indefinite lifespan demonstrated over hundreds of years.
  • Seams are available in 25 or 38 mm formats.
  • The Snaplock® seam system can be laid on a ventilated timber substrate, composite panel or direct on insulation, using special warm roof fixing clips.
  • Snaplock® is much simpler and requires less skill/ hand tools than the traditional standing seam. The profile contains an undercloak and an overcloak – the undercloak side is fixed with a stainless steel fixing clip with the overcloak side then snapped into place.
  • The system can be provided as a complete roof kit including all flashing, matching rainwater products and ancillaries.


Snaplock® can be mounted on all roof build-ups, the only pre-requisite being that it is fully supported.

Suitable substructure materials:

  • Ventilated 18 mm-thick weather and boil proof (WPB) plywood.
  • Ventilated oriented strand board OSB3.
  • Hard metal board.
  • Composite panel.
  • Rigid insulation.


ISO-Mat Pro® is recommended by the manufacturer.


  • 25 mm seam: SM-EH-Snap-25 (SM-EDH-Snap-25 for fixing to rigid insulation).
  • 38 mm seam: SM-EH-Snap-38 (SM-EDH-Snap-38 for fixing to rigid insulation).
  • Flashing clips: SM-ELH-27.

General information


Uniclass 2015

Pr_25_71_51_16 Copper long stripsPrimary


H73/110 Copper sheet fully supported roof covering

H73/130 Copper sheet fully supported wall covering

H73/2 Copper sheet fully supported roof covering

Specification data - Copper long strips

Product Reference

Aurubis Snaplock® Seam


Insert project requirements, maximum length: 12 m.


25 mm

Minimum pitch: 7°. Nominal centres: 425 mm.

38 mm

Minimum pitch: 3°. Nominal centres: 386 mm.

Colour/ Finish

Aurubis Nordic Standard

Aurubis Nordic Blue

Aurubis Nordic Brass

Aurubis Nordic Bronze

Aurubis Nordic Brown, Light

Aurubis Nordic Brown, Dark

Aurubis Nordic Green

Aurubis Nordic Royal

Product Options


Alternative (bespoke) lengths are available, if they are logistically possible to transport. Consult manufacturer for details.

Colour/ Finish:

Various options available, consult technical literature for further details including finish.

  • Aurubis Nordic Standard: Traditional 'bright' mill finish.
  • Aurubis Nordic Blue/ Nordic Green: Pre-patinated (mineral based). Speckled finishes can be requested; consult manufacturer for details.
  • Aurubis Nordic Brass: Copper/ zinc alloy with distinctive yellow colour which darkens to a dark brown over approx. a year when exposed to the atmosphere.
  • Aurubis Nordic Bronze: Copper/ tin alloy. Initially colour is similar to Nordic Standard; changes to a dark chocolate brown when exposed to the atmosphere.
  • Aurubis Nordic Brown, Light/ Dark: Pre-oxidized; minimizes hand and other construction marks that may occur during installation.
  • Aurubis Nordic Royal: Alloy of copper with aluminium and zinc. Rich gold colour, with a thin protective oxide layer. Matt finish.

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