Fixing and buying guide
GGL CK01 2070 VELUX WHITE PAINT 55 X 70 C/P 70 PANE
What this product is and who it is for
This is a centre pivot roof window from Velux's GGL range, finished in white paint. Centre pivot windows open by rotating around a horizontal axis through the middle of the sash, making them ideal for pitched roofs where you need controlled ventilation and easy cleaning access. The 55 x 70 cm dimensions (width x height) suit standard UK roof pitches between 15 and 90 degrees. It is suitable for new builds, renovations, and loft conversions where natural light and fresh air are priorities.
- Centre pivot opening mechanism for safe, controlled ventilation
- White painted finish for clean, contemporary appearance
- Double glazed unit (70 pane designation indicates glazing specification)
- Suitable for pitched roofs at angles 15–90 degrees
Size, pack contents, and compatibility
The 55 x 70 cm size refers to the window opening dimensions. This is a standard Velux CK01 size that fits common UK roof rafter spacings. The window comes complete with the sash, frame, flashing kit, and installation hardware. Before ordering, verify your roof pitch angle and confirm the rafter spacing accommodates this width. Check that your roof structure can support the window weight and that there are no obstructions such as pipes or electrical cables in the installation zone.
- Opening dimensions: 55 cm wide x 70 cm high
- Complete with frame, sash, flashing, and fixings
- Requires roof pitch between 15 and 90 degrees
- Confirm rafter spacing and roof structure before purchase
Pre-installation checks and preparation
Inspect the window on delivery for any damage to the frame, sash, or glazing. Check that all components listed in the pack are present. Measure your roof opening carefully and compare against the product dimensions to avoid costly errors. Ensure the roof structure is sound and that you have safe access for installation. If the roof is tiled or slated, plan for temporary removal and reinstatement of coverings. Have appropriate flashing materials and sealants ready, and confirm that your installer or team is familiar with Velux centre pivot installation procedures.
- Inspect for transport damage on arrival
- Verify all pack contents are present
- Measure roof opening precisely before fitting
- Ensure roof structure is sound and accessible
- Arrange temporary removal of roof coverings if needed
- Prepare flashing, sealants, and installation tools in advance