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A standing seam system with traditional detailing, giving an aesthetically pleasing finish whilst avoiding the industrial finishes found in contemporary standing seam systems.

It can be used to cover complex surfaces such as barrel vaulted roofs and domes etc., can be laid on a ventilated timber substrate, composite panel and direct onto insulation, using special warm roof fixing clips.

Features and benefits:

  • Manufactured from steel.
  • Seams are available in 25 or 38 mm formats.
  • The system can be provided as a complete roof kit including all flashing, matching rainwater products and ancillaries.


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.


  • Fixed: 25 mm seams: SM-EFK-25; 38 mm seams: SM-EFK-38.
  • Sliding: 25 mm seams: SM-EFE-25; 38 mm seams: SM-EFE-38.
  • Flashing clips: SM-ELH-27.
  • For fixing to rigid insulation: Thermoseam warm room clip for metal roofing.

General information

Insert project requirements, maximum length: 12 m.

Uniclass 2015
Pr_25_71_51_15 Carbon steel sheetsPrimary
Specification data - Carbon steel sheets
Product Reference

GreenCoat® PLX Standing Seam


Insert project requirements, maximum length: 12 m.


25 x 430 mm/ 530 mm

Minimum pitch: 5°.

38 x 404 mm/ 504 mm

Minimum pitch: 3°.

Colour/ Finish

Acorn Brown RR827 / SS0434

Anthracite Grey RR2H8 / SS0087

Brick Red RR7F2 / SS0742

Cottage Red RR29 / SS0758

Leaf Green RR594 / SS0874

Metallic Copper RR979 / SS0778

Metallic Dark Silver RR41 / SS0044

Metallic Gold RR042

Metallic Silver RR40 / SS0045

Metallic Sterling RR974 / SS6045

Mountain Grey RR23 / SS0036

Nordic Night Black RR33 / SS0015

Quarry Grey RR287 / SS0244

Silver Fir Green RR5J3 / SS0975

Snow White RR19 / SS0001

Special order

See 'Options' and insert requirements.

Standard product features

Coefficient of expansion:

0.012 mm/m·K. GreenCoat PLX offers an approximately 50% lower expansion coefficient in contrast to all other metals. This property allows for longer profiles/sections (consult technical literature for details) and prevents buckling and deformation for many decades.

Product Options


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


Other centres on request; consult manufacturer for details.

Colour/ Finish:

- Special order:

Other colours are available subject to minimum order quantities; consult manufacturer for details.

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