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CFJ--, CVJ--, ISJ--


From €429 excl. VAT

For roof pitch 0-15°

A simple flat roof dome solution for uninhabited rooms or buildings such as warehouses, garages, sheds, or smaller industrial buildings.  Available in a fixed or electrically vented version, with 2- or 3-layer dome skins.
  • Standard daylight area
  • Standard energy performance

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Product details

The steps below will guide you through your product options.

Step 1 - Choose a top unit

Polycarbonate dome skins in opaque surface provides diffused daylight, improving the light needed for working.

2-layer dome skins

2 layer dome is suitable for uninhabited rooms. Available in polycarbonate.

VELUX dome, 2 layer glass

3-layer dome skins

3 layer dome for more insulation in uninhabited rooms. Available in polycarbonate.

Dome 3 layers glass

Step 2 - Choose a base unit

PVC base unit in either 15 cm or 30 cm.   


Choose a fixed base unit for rooms where you want to bring in daylight but without the possibility of extra ventilation.

VELUX dome, fixed

Electric ventilation

Choose an electrically vented base unit for the possibility of bringing in both daylight and ventilation for better indoor comfort.

VELUX dome, Electric ventilation

Step 3 - Choose installation add-ons if needed

Fall through grid

Ensures safe working conditions on the roof.
ZCJ 257

VELUX Dome, Fall through grid

Securing kit

Frame fixing kit for secure mechanical fixation of the roofing material to the window frame.
ZZZ 210J
VELUX dome, Securing kit


Lining for flat roof. This all-in-one solution includes PVC panels, vapour barrier and facings.
LSF 2000
VELUX dome, lining

Products for replacement

The replacement products will enable you to do an efficient and quick replacement of 3rd party domes without replacing the base unit.
You can even upgrade an existing fixed dome to a ventilated one.

Sizes and prices

De ramen zijn verkrijgbaar in de volgende maten (B x H)

60 x 60

80 x 80

90 x 60

90 x 90  

100 x 100

120 x 90

120 x 120

150 x 100

150 x 150

Example of prices 

You can find the complete price in the brochure.


100x100 150x150
Code Description


Top unit
 ISJ  0112 2-layer polycarbonate dome skin 194.00  €322.00  €735.00 
 ISJ  0113 3-layer polycarbonate dome skin 231.00  €453.00  €1033.00 
Base unit
 CFJ  0010 Fixed base unit 15 cm €235.00  €319.00  €574.00 
 CFJ  1010 Fixed base unit 30 cm €319.00  €453.00  €708.00 
 CVJ  0210 Vented base unit 15 cm
€828.00  €962.00  €1,217.00 
 CVJ  1210 Vented base unit 30 cm €1,082.00  €1,216.00  1,471.00 
Installation accessories
 ZZZ 210J Securing kit for roofing material €61.00  €80.00  €118.00 
 ZCJ 1210 Replacement kit for ventilation €513.00  €574.00   
 ZCJ 0000 Replacement frame 158.00  195.00   
All prices are excl. VAT.

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