• Fit exact window dimensions and connect perfectly to your roofing material.

  • Pleated underfelt collar (type BFX) forms a tight seal between roofwindow and your felt underlay. The self-supporting drainage gutter ensures safe water drainage from above the window.

  • Insulation frame (type BDX), with flexible foam for a tight and secure fit to the roof construction.

  • Vapour barrier collar (type BBX), including assembly tool for a vapour- and airtight solution.

  • Prefabricated linings (type LSB/LSC/LSD) for easy and airtight inside completion. Includes vapour barrier collar (type BBX), a tool for a vapour- and airtight solution.

1
Original VELUX
Flashings
Underfelt collar BFX
Water drainage
gutter
Insulation frame
BDX
Vapour barrier
collar BBX
Interieur lining
LSB / LSC / LSD
Lining frame
kit LSG
Fit exact window
dimensions and
connect perfectly
to your roofing material
Pleated underfelt
collar forms a
tight seal between
roofwindow and
your felt underlay.
Self-supporting
drainage gutter
ensures safe
water drainage
from above the
window.

Insulation frame
with flexible foam for a tight and secure fit to the roof construction.
Vapour barrier
collar, including assembly tool for a vapour- and airtight solution.
Prefabricated linings
for easy and airtight inside completion. Includes vapour
barrier collar.
Easy-to-assem­ble,
adjustable steel
frame for fast and
easy framing for
your on-site lining. Includes vapour
barrier collar.

 

Standard or recessed installation

VELUX New Generation roof windows offer two installation heights, standard or recessed.

The recessed installation provides a sleek, streamlined appearance, sitting 40 mm deeper in the roof structure, and provides architects with greater design flexibility.

For optimum insulation effect, the VELUX Group recommends recessed installations. When installed with the appropriate VELUX insulation collar, recessed installations results in saving more energy.

A1: Standard installation
A2: Recessed installation

Tile flashings

Slate flashings

Extra insulation and protection

Optimise your new roof window to ensure an energy-efficient and durable installation. You can choose the frame insulation product BDX, which ensures proper insulation between the roof construction and the window frame, and the pleated underfelt collar BFX, which ensures a flexible and tight connection between the underfelt and the window frame. The drainage gutter ensures that water from the underfelt above can drain away from the window.

B1: Insulation frame.
B2: Drainage gutter. 
B3: Pleated underfelt collar.

Excellent interior finish

Use VELUX linings to optimise the finish in your room. We recommend the pre-fabricated VELUX linings LSB/LSC/LSD with sharp lines to match contemporary styles. The linings are made in water- and moisture-repellent materials with a white finished surface treatment. The unique design creates space for extra insulation material to prevent thermal bridges. Alternatively, VELUX kit for lining LSG forms a perfect structure for shaping your own plasterboard lining.

The unique design creates space for extra insulation material to prevent thermal bridges. Both VELUX linings and VELUX kit for lining are delivered with VELUX vapour barrier collar BBX, which is 100% vapour-tight and prevents condensation.

C1: Lining frame LSG.
C2: Vapour barrier collar BBX. 

Interior lining LSB / LSC / LSD.
Excellent and perfect interior finish.