On all VELUX roof windows you will find a type sign stating exact information about the window. For instance as regards the roof windows with control bar (illustrated below) the data plate is placed in the right corner of the top sash behind the ventilation flap. On other types of VELUX windows you will find the type sign somewhere visible on the inside of the frame or sash or behind the ventilation flap.
All you have to do, when ordering a blind, is to indicate the window code of the data plate to make sure you receive the right product. To find out your window code see below.
Key
1 Window model.
2 Window code.
3 Window surface (first two digits) Pane type (last two digits)
4 Production code.
Providing proper dimensions guarantees the purchase of accessories that will fit your window.
If you wish to buy a blind but you are not sure what your window dimensions are you can check it on a data plate. It is located on a window sash in the right upper corner, visible when the window is opened.
Before you order the blind it is vital that you find the serial number on your window so you can identify which window you own and which blind to order.
The serial number can be located in two different places depending on which style window you have.
Firstly, open your window and look on the right hand arm of the roof window and serial should be located here under and blue or red tag. The serial number will be similar to the following examples:
- 435 WDF 7/9...
- 435 HBT 7/11...
- 735 HBT 5/9...
- 847 HBK 7/14...
If you can't find anything in this position please try the second location. Again with the window open, look on the right hand side of the top inside edge of the sash (the part of the window that moves) The serial number will be similar to the following examples:
- 320 AG 5B7...
- 339 DC 7N11...
- 539 HB 6/11...
If you are having problems locating the serial number please do not hesitate to contact us.
What does the serial number mean?
The first 3 numbers listed in the example above tell you the series of the window. Each series requires a different blind.
Window series
The 435 series is a timber window with a centre pivot.
The 735 series is available in timber or PVC and pivots at the top third.
IMPORTANT: Blinds for series 4 and 7 (whether timber or PVC) are compatible!
The 320/339/559 all correspond the 320 series window. This is a timber window with a centre pivot. This series window has now been discontinued; however we do still sell blackout blinds and roller blinds to suit these common old style windows.
The 800 series is a 'means of escape' window and is top hung.
So to sum up! There are 3 different series blinds to order:
- 435/735 series
- 320 series
- 800 series
NOTE: The letters in the serial number you do not need to worry about. They can tell us the year the window was made and what material it is made from. Please contact us or click the button below to fill out a special Colt Roto enquiry form. A blind specialist should get back to you within 24 hours & usually quicker!
You can locate the serial number (e.g. CP2001 12345...) on the window identification card (underneath the ventilation handle of your window) please do not order from this code ,We strongly recommend you measure the actual visible glass size! This way you will be able to order directly from our website.
All of our blinds are available in the exact same sizes as the roof windows.
To find the correct size of your roof window, please take a look at the type sign at the top inside of the sash.
| Dimensions in mm | 550 | 660 | 780 | 1140 |
| 780 | C2A | |||
| 980 | C4A | M4A | ||
| 1180 | F6A | M6A | S6A | |
| 1400 | M8A |
Remember size are the overall window size and not the size of the blind!
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