Roof trim
Snap-lock standing seam system
VANKKA Seam 25
Seam geometry that closes under hand pressure.
- Code
- VS25
- Fixing
- Concealed fixing
- Category
- Roofing Systems
Profile cross-section — schematic, not to scale
Overview
Seam 25 carries the same visual language as VANKKA Classic — a clean vertical seam, no fastener heads on the face — but the joint is engineered to snap closed under hand pressure rather than requiring a powered seaming machine on the roof.
That changes the economics of a project. On simple rectangular planes with good access, a crew can lay and close Seam 25 substantially faster than a mechanically seamed roof, which brings concealed-fix quality into budgets that would otherwise default to an exposed-fastener profile.
The trade-off is pitch: a snap-lock seam is not a mechanically closed one, and there is a lower limit below which we will specify Classic instead. Our technical team will tell you which side of that line your roof falls on before you order.
Applications
- Residential new build
- Re-roofing over existing structures
- Light commercial
- Extensions and outbuildings
01
No seaming machine
The seam engages by hand, removing plant hire and the access it needs from the program.
02
Concealed clip fixing
Clips are covered by the following pan — the finished surface is free of fasteners.
03
Faster laying rate
Designed for straightforward planes where speed of close-in matters more than minimum pitch.
Technical data
Specifications
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.
Geometry
Material
Coating
Performance
Warranty & compliance
Finishes
Coating systems and colours
Coating choice is driven by exposure and expected service life rather than by colour. Both are confirmed with your quotation.
Polyurethane
PURBuilt for the Nordic envelope.
Matt Polyester
MPLow gloss, low reflection, contemporary.
Standard Polyester
SPThe volume coating. Proven, economical, widely specified.
Colours available in these coating systems
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
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
Everything you need to specify it.
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.
- RequestTechnical data sheet
Technical data sheet
Data sheetPDF
- RequestInstallation guide
Installation guide
Installation guidePDF
- RequestCAD profile and details
CAD profile and details
CAD filesDWG / DXF
- RequestDeclaration of performance
Declaration of performance
Declaration of performancePDF
- RequestWarranty terms
Warranty terms
WarrantyPDF
Gallery
VANKKA Seam 25 in use
Photography of this product in production and on completed buildings.
VANKKA Seam 25 on a completed building
VANKKA Seam 25 profile detail, raking light
VANKKA Seam 25 in production on the roll-forming line
VANKKA Seam 25 installed — junction and trim detail
Completes the system
Trims and accessories designed for this product
Ordered with the profile, these come from the same coil and the same batch — so they match exactly.
