Vankka

Flashing

Transition Flashing

Joins two roofs that were never meant to meet.

Fixing
Component
Category
Flashings
Get a quoteTechnical data

Weathers a change of pitch, a change of profile or a junction between old and new roof areas.

Profile cross-section — schematic, not to scale

Overview

Extensions, re-roofing and phased work all produce the same problem: two roof surfaces at different pitches, in different profiles, that have to be joined watertight.

Transition flashings are folded to the two geometries being joined, with a break line at the pitch change and profile-matched returns on both sides.

Applications

  • Pitch changes
  • Profile changes
  • Extensions and phased re-roofing
01

Two geometries, one trim

Folded to both pitches and both profiles.

02

Made to survey

Produced from measured site dimensions.

03

Retrofit-ready

Detailed to close against an existing roof covering.

Technical data

Specifications

All VANKKA data is metric. Values are confirmed for your project at quotation and issued with the technical documentation.

Geometry

Geometry
Standard lengthOn request
GirthOn request
Number of foldsOn request
End lapOn request
Custom geometryMinimum order appliesBent to drawing

Material

Material
SubstrateHot-dip metallic coated steelOn request
Steel gradeTo EN 10346On request
Nominal thicknessOn request
Metallic coatingOn request
MassOn request

Coating

Coating
Coating systemsMatched to the roof or facadeOn request
Nominal coating thicknessOn request
GlossOn request
Corrosivity classTo EN ISO 12944-2On request
UV resistance classTo EN 10169On request
Reverse side coatingOn request

Warranty & compliance

Warranty & compliance
Technical warrantyOn request
Surface warrantyCoating dependentOn request
Harmonised standardDeclaration of performance issued per deliveryOn request
CE markingOn request

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.

All colours & coatings

Standard Polyester

SP

The volume coating. Proven, economical, widely specified.

Matt Polyester

MP

Low gloss, low reflection, contemporary.

Polyurethane

PUR

Built for the Nordic envelope.

Plastisol

PVC(P)

Thick film, high mechanical resistance.

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.

Full document library

Gallery

Transition Flashing in use

Photography of this product in production and on completed buildings.

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.

Trims & flashings

Alternatives

Also consider

Transition Flashing — Flashing | VANKKA