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VFE Bottom-hung additional vertical element

For roof pitches from 15-55°.


The vertical window element VFE is installed vertically directly below a VELUX roof window. The bottom hung sash opens/ tilts inwards and features insulating glass unit with safety glass. The element can be secured in ventilation position with sash approximately 155 mm open.

Manufactured from high quality natural pinewood coated with impregnation and layers of water-based acrylic white paint or clear lacquer. Also includes a handle on the top sash and maintenance-free exterior covers.


Ten-year guarantee.


For roof pitches from 15-55°.

General information


white paint color NCS 0500-N


Bottom hung vertical window



Uniclass 2015

Pr_30_59_98_97 Wood frame roof window unitsPrimary


L10/480 Roof windows

L10/50 Roof windows

Specification data - Wood frame roof window units

Product Reference

VFE Bottom-Hung Additional Vertical Element

Product performance


Whole window U-value

1.0 W/m²K - 1.3 W/m²K depending on product option



Finish as delivered


Internal frame and sash

Lacquered natural pine

White painted

External cladding

Grey aluminium; colour reference NCS S-7500-N

Code 0

Untreated copper

Code 1

Titanium zinc

Code 3

Painted aluminium

Code 8

Glazing or infill



Argon filled cavity




Operation is via handle positioned on the top of the sash and the window opens inwards.


Awning blind

Blackout blinds

Bracket, grey

For accessories.

Bracket, white

For accessories.

Light dimming energy blind

Pleated blind

Roller blind

Standard product features


External Colour NCS S-7500-N; Internal Colour, white paint NCS S 0500-N.


VFE additional bottom hung timber element that is installed vertically below a centre-pivot or top-hung roof window. Operation is via handle positioned on the top of the sash and the window opens inwards. For cleaning of the outer glass pane, a tool is supplied with the window to allow the sash to open to approximately 45°. Externally the window has maintenance free aluminium cover parts.


Internal frame and sash is available as White painted – Code 2 or Lacquered natural pine – Code 3. External cladding in grey aluminium; colour reference NCS S-7500-N - Code 0, Untreated copper – Code 1, Titanium zinc – Code 3, Painted aluminium – Code 8.


Pine frames with aluminium cladding.


Wide range of sizes to suit project requirements.

Warranty description:

Ten-year guarantee for window and pane.

Digital objects
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