
Facade trim
Micro-rib wall sheet
A near-flat sheet that stays flat.
Profile cross-section — schematic, not to scale
Overview
Large flat areas of thin steel show every imperfection in the substrate as a shimmer across the surface — oil-canning. Rib 12 solves it with a shallow micro-rib at close centres, which stiffens the sheet enough to hold a flat plane without introducing the visual weight of a real profile.
From a few metres away the elevation reads as flat. Up close, the rib gives the surface a fine grain that catches raking light — particularly effective in matt coatings on north-facing elevations.
It is our most specified wall profile for commercial refurbishment, where the substrate is rarely as flat as the drawing suggests.
Close-centred micro-ribs hold the plane flat where a truly flat sheet would ripple.
The rib is shallow enough to disappear at normal viewing distance.
Tolerates the real-world flatness of refurbishment work.
Technical data
All VANKKA data is metric. Values are confirmed for your project at quotation and issued with the technical documentation.
Verified technical data for this product is being finalised. The data sheet structure below shows exactly what will be published — request the full technical documentation and our team will send the current figures for your project.
Finishes
Coating choice is driven by exposure and expected service life rather than by colour. Both are confirmed with your quotation.
Low gloss, low reflection, contemporary.
Maximum colour stability.
Built for the Nordic envelope.
The volume coating. Proven, economical, widely specified.
Pure White
RAL 9010
Grey White
RAL 9002
Light Grey
RAL 7035
Grey Aluminium
RAL 9007
Iron Grey
RAL 7011
Graphite Grey
RAL 7024
Anthracite Grey
RAL 7016
Jet Black
RAL 9005
Light Ivory
RAL 1015
Clay Brown
RAL 8003
Copper Brown
RAL 8004
Chocolate Brown
RAL 8017
Oxide Red
RAL 3009
Brown Red
RAL 3011
Wine Red
RAL 3005
Moss Green
RAL 6005
Chrome Green
RAL 6020
Fir Green
RAL 6009
Gentian Blue
RAL 5010
Steel Blue
RAL 5011
Slate Blue
RAL 5008
Silver Metallic
RAL 9006
Graphite Metallic
RAL 9023
On-screen colours are approximations. Coated steel changes appearance with gloss level, surface texture, viewing angle and daylight. Always confirm a colour against a physical VANKKA sample before ordering.
Documentation
Data sheets, installation guides, CAD details, declarations of performance and warranty terms. Documents not yet published can be requested directly and will be sent by the technical team.
Technical data sheet
Data sheetPDF
Installation guide
Installation guidePDF
CAD profile and details
CAD filesDWG / DXF
Declaration of performance
Declaration of performancePDF
Warranty terms
WarrantyPDF
Gallery
Photography of this product in production and on completed buildings.
VANKKA Rib 12 on a completed building
VANKKA Rib 12 profile detail, raking light
VANKKA Rib 12 in production on the roll-forming line
VANKKA Rib 12 installed — junction and trim detail
Completes the system
Ordered with the profile, these come from the same coil and the same batch — so they match exactly.