Single installation: EDW
Combination installation: EBW/EKW
- For standard installation of roof windows in profiled roofing material up to 120 mm in profile
- Suitable for 15°-90° roof pitches
Installation products
Every roof installation job requires skill and experience as well as the right tools and materials.
The VELUX installation product system is designed and optimised to support the installation workflow.
By using the complete VELUX installation product system, you can achieve the best possible results.
VELUX installation product system
- Flashings
Fit exact window dimensions and connect perfectly to your roofing material. Underfelt collar (type BFX) and insulation collar (BDX) are included with the flashing. - Underfelt collar
Pleated underfelt collar (type BFX) forms a tight seal between roof window and your felt underlay. Comes with adjustable drainage gutter to lead water away from the head of the roof window. - Insulation collar
Insulation collar (type BDX), with flexible foam for a tight and secure fit to the roof construction. - Vapour barrier collar
Vapour barrier collar (type BBX), including assembly tool for a vapour- and airtight solution. - Interior lining
Prefabricated linings (type LSB/LSC/LSD) for easy and airtight inside completion. Includes vapour barrier collar (type BBX).
Flashings for all roof types
VELUX has flashing types that fit every roofing material and window size. Each flashing is precision-made to fit the window and makes the installation quick and simple.
The VELUX roof windows can be installed in two installation heights, standard or recessed. Choose a flashing type for recessed installation (40 mm lower in the roof), if you want a better insulation effect and a more visually appealing installation.
Single installation: EDL
Combination installation: EBL/EKL
- For standard installation of roof windows into flat roofing material up to 8 mm thick
- Not for interlocking slate
- Suitable for 15°-90° roof pitches
Single installation: EDS
Combination installation: EBS/EKS
- For standard installation of roof windows into flat roof material up to 8 mm thick
- Suitable for 15°-90° roof pitches
Single installation: EDT
Combination installation: EKT
- For standard installation of roof windows in flat tiles with 15-40 mm thickness
- Suitable for 20°-90° roof pitches
Single installation: EDP
Combination installation: EBP/EKP
- For standard installation of roof windows in plain tiles up to 14 mm thick
- Suitable for 20°-90° roof pitches
Single installation: EDR
Combination installation: EBR/EKR
- For standard installation of roof windows in felt or membrane up to 16 mm thick
- Suitable for 15°-90° roof pitches
Single installation: EDQ
Combination installation: EKQ
- For standard installation of roof windows in click metal roof with standing seam between 25-40 mm
- Suitable for 15°-90° roof pitches
Single installation: EDE
Combination installation: EKE
- For standard installation of roof windows in traditional metal roofs with standing seam
- Suitable for 15°-90° roof pitches
Single installation: EDG
- For standard installation of GBL roof windows in low pitched roofs
- For profiled roofing material up to 120 mm in profile
- Suitable for 10°-20° roof pitches
Single installation: EDB
Combination installation: EKB
- For standard installation of roof windows in beavertail tiles up to 19 mm thick
- Suitable for 25°-90° roof pitches
Single installation: EDN
Combination installation: EKN
- For recessed installation into slate up to 8 mm thick
- Not for interlocking slate
- Suitable for 20°-90° roof pitches
Flashing sets for a flawless installation
All VELUX flashings are including the underfelt collar (type BFX) and insulation collar (type BDX) for a flawless installation.
Choose the Pro flashing set (1000 variant) that includes the BFX underfelt collar for a weather-proof installation. Or if you want added insulation, choose the Pro+ flashing set (2000 variant) that also includes the BDX insulation collar. Both flashing sets have been carefully designed to make every step of the installation process as simple as possible.
Insulation frame and underfelt collar
The insulation frame BDX insulates around the roof window frame, reducing heat loss and eliminating cold bridges. The combination of rigid and flexible foam ensures a tight, energy-efficient installation to the roof construction.
The flexible insulation frame can be compressed for quick installation.
The underfelt collar BFX ensures a perfect fit and watertight seal between the roof window, battens, and the roofing underfelt. It is easy to fit. Simply place on top of the roof window and unfold.
An adjustable and self-supporting drainage gutter is included in the BFX. This leads the water away from the head of the roof window if there is a leak above.
Interior lining
If you want a ready-made solution to complete the interior finish in the room, VELUX linings are easy to install and there is no need for additional painting. Made from durable PVC material, VELUX linings are water-resistant and maintenance-free and fit perfectly with the roof window. The unique design allows space for extra insulation material to prevent cold bridges.
VELUX linings are delivered with VELUX vapour barrier collar BBX.
Combination of roof windows
The a-distance
- Our innovative and patented solution makes roof window combination installations more straightforward.
- The middle gutter can be adjusted to widths between 100 - 160 mm (M width), ensuring that it always fits to the actual rafter dimensions.
- Other frame distances between 60 mm to 400 mm can be specially ordered