Fixing and buying guide
VELUX Centre-Pivot Roof Windows White Painted 55x78cm GGL CK02 2070
What you get and compatibility
The GGL CK02 2070 comes as a complete centre-pivot roof window unit in white painted finish. The 55x78cm size (CK02 is the VELUX size code) fits standard UK roof pitches and rafter spacings. Check your existing roof window opening dimensions carefully before ordering, as this size is specific and cannot be adjusted. The window includes pre-fitted brackets for blind installation, so you can add compatible VELUX blinds by simply clicking them in place. Standard glazing features safety lamination, toughened glass, UV filter, and rain noise reduction technology.
- Size: 55x78cm (CK02 code)
- Finish: White painted frame
- Operation: Top control bar with centre-pivot rotation
- Glazing: Safety laminated, toughened, UV filtered, noise reduced
- Blind brackets: Pre-fitted and ready for VELUX blind accessories
Operating features and ventilation
The top control bar allows two distinct operating positions. Push it to the ventilation position to allow fresh air circulation through a closed window, useful for background ventilation without full opening. Rotate the window 180 degrees for complete access to the outer glass surface, making external cleaning safe and easy from inside your home. The removable and cleanable ventilation filter protects against dust and insects while the window is in ventilation mode, and you can extract and wash this filter as needed.
- Ventilation position: Fresh air without full window opening
- 180-degree rotation: Safe outer glass cleaning from inside
- Removable filter: Protects against dust and insects
- Low installation position: Maintains furniture placement flexibility
Pre-installation checks and preparation
Before purchasing, measure your existing roof window opening or the space where you plan to install this window. The CK02 size is fixed at 55x78cm, so your opening must accommodate these exact dimensions. Check that your roof pitch and rafter spacing are compatible with VELUX centre-pivot windows. Ensure you have adequate headroom above the window for the top control bar operation. If you are replacing an existing window, confirm that the new frame will fit within the current opening or that you are prepared to make structural adjustments. Have your installation kit and flashing ready before fitting begins.
- Measure your roof opening: Must be 55x78cm
- Check roof pitch compatibility with VELUX specifications
- Verify headroom for top control bar operation
- Prepare flashing kit and installation hardware in advance