Do VELUX products meet building code requirements?
Yes, all VELUX Skylights, Roof Windows and Sun Tunnels have been tested or certified for numerous building code requirements. Some of these include Weatherproofing, Health and Amenity, Structural integrity, Overhead Safety Glazing, Glazing in High Wind areas, Bushfire Prone areas, Energy Efficiency, Natural Light & Ventilation requirements.
These code requirements, and others, are listed in our Codemark certificates.

Download our CodeMark Certificates here.

What is the frame out size for pitched Skylights?
The frame out size is the width and the height of the skylight. The clearance between the rafters must be at least the width of the rooflight, battens are framed according to the roofing material requirements, with additional support battens are added at the top and bottom of the rooflight. 

Can I get a custom sized skylight?
Unfortunately we do not make special sized skylights. Our existing range has a comprehensive list of sizes suitable for all situations or building types.
See our range here

What is the frame out sizes for flat roof Skylights?
When framing out, a purpose-built curb (for the skylight to fit onto) is made equal to the overall curb dimension of the flat roof skylight that you are using
See our custom flashing suggestion for more information on installation.

Can flat roof skylights be turned and installed sideways?
The Fixed Flat Roof Skylight (FCM) can be installed in portrait, landscape or even diamond shape orientation. Your builder will need to design the appropriate custom flashing.
Note: VELUX recommends that the FCM 2270, 3072 & 4672 are not installed in a landscape orientation.
Openable flat roof skylights cannot be installed sideways, however a “landscape” size is available (VCS 4622: 1275x665)

Can I get a custom sized skylight?
Unfortunately, we do not make special sized skylights. Our existing range has a comprehensive list of sizes suitable for all situations or building types.
See our range here

What is the frame out size for roof windows?
The spacing between rafters must be the width of the Roof Window plus 40-60mm, additional support battens are then spaced the height of the Skylight plus 45mm.

Which Sun Tunnel should I use: Flexible or Rigid?
The Flexible tunnel is suitable for short tunnel lengths (up to 2mtrs) or when obstacles in the roof space prevent the use of a Rigid Sun Tunnel.
The Rigid Sun Tunnel should be used, with extensions where possible, for longer tunnel lengths to maximise light output.

Can I install a VELUX Skylight?
All VELUX rooflights (and blinds) come with installation instructions in the cartons. In addition, there are QR codes and online tutorials available that provide additional installation advice.
Any competent tradesperson or qualified handyman should be able to install our products however we also have a network of independent, recommended installers available for that expert touch.
Contact VELUX for an obligation-free quote.

Can my builder install a VELUX skylight?
Any competent tradesperson should be able to install our products however we also have a network of independent, recommended installers available for that expert touch.

How much does it cost to install a Skylight?
Each installation is different and it’s best to have someone visit your home to give you independent, expert advice. We have a network of independent, recommended installers available to visit and quote and provide in-home advice.
Contact VELUX for an obligation-free quote.

Do I need council approval to install a skylight?
Depending on the size or number of skylights, you may not necessarily need council approval for a skylight. However, it’s best to check with your local council or builder when planning to install a skylight.

Should I install my skylight before my roof is installed or can I do it after?
As a rule, it is preferable to install the skylight before the roofing has been installed, however a retrofit is also possible in most buildings. It’s best to discuss this with your builder to see which option is preferable for your building type.  
Alternatively, you can contact VELUX for helpful advice.