Fixing and buying guide
VELUX Centre-Pivot Roof Windows White Painted 78x140cm GGL MK08 2070Q
Who this product is for
This window is ideal for homeowners and builders installing roof windows in properties where security is a concern, or in locations where enhanced burglary resistance is desirable. It suits loft conversions, attic rooms, and upper-floor extensions. The centre-pivot operation and 180-degree rotation make it practical for properties where external access for window cleaning is difficult or unsafe.
- Homeowners upgrading security in loft or attic spaces
- Builders and contractors on residential renovation projects
- Properties in areas where enhanced security features are valued
- Installations where safe internal cleaning of external glass is important
Key features and sizing
This VELUX GGL MK08 model measures 78x140cm and is supplied in white painted finish. The window operates via a top control bar that can be positioned for full opening or ventilation-only mode, allowing fresh air circulation even when the window is closed. The centre-pivot mechanism enables full 180-degree rotation for safe cleaning of the outer glass from inside. Security features include integrated frame locks, extra strong hinges, laminated internal glazing, and toughened external glazing. The 2-layer glazing reduces heat loss and improves indoor comfort.
- Size: 78x140cm (MK08 designation)
- Finish: White painted
- Operation: Top-operated centre-pivot with ventilation position
- Glazing: 2-layer system with laminated internal and toughened external panes
- Security: Integrated frame locks and extra strong hinges
- Rotation: Full 180-degree rotation for external glass cleaning from inside
What is included and pre-installation checks
The window comes with a removable and cleanable ventilation filter to protect your home from dust and insects during ventilation. Pre-fitted brackets are included for quick and easy blind installation. Before ordering, confirm that your roof opening matches the 78x140cm dimensions specified for the MK08 size. Check that the installation location has adequate headroom for the window to open fully and rotate without obstruction from furniture or fittings. Verify that your roof structure can accommodate a centre-pivot window and that flashing and weatherproofing can be properly installed around the frame.
- Removable and cleanable ventilation filter included
- Pre-fitted brackets for blind installation included
- Confirm roof opening dimensions match 78x140cm (MK08)
- Check headroom for full opening and 180-degree rotation
- Verify roof structure suitability for centre-pivot installation
- Plan for proper flashing and weatherproofing around the frame
Practical benefits and operation
The top control bar design makes opening and closing straightforward, even if furniture is positioned underneath the window. The ventilation position allows you to enjoy fresh air circulation without fully opening the window, useful for security and weather control. The 180-degree rotation capability eliminates the need for external ladders or scaffolding when cleaning the outer glass, improving safety and convenience. The removable ventilation filter can be easily cleaned to maintain airflow and protect against dust and insects. The 2-layer glazing contributes to better thermal efficiency and reduced heating costs.
- Top control bar operates smoothly even with furniture beneath the window
- Ventilation position provides fresh air without full opening
- 180-degree rotation eliminates need for external access for cleaning
- Removable filter is easy to clean and maintain
- 2-layer glazing improves thermal performance and comfort