Fixing and buying guide
VELUX Recessed Flashings W/ Installation Productions 134x98cm EDN UK04 2000
What is included and who needs this product
This is a complete flashing kit designed specifically for VELUX roof windows measuring 1340×980mm. The kit contains an 8mm slate flashing and a BDX 2000F installation frame. You need this product if you are installing a compatible VELUX roof window or Sun Tunnel system into a pitched roof and require a weather-tight, professional integration. The recessed design means the flashing sits flush with the roof surface, creating a visually consistent finish. This kit is suitable for both new build projects and refurbishment work on existing properties.
- Complete kit with flashing and installation frame included
- 8mm slate flashing material for weather protection
- BDX 2000F installation frame for secure fixing
- Designed for 1340×980mm VELUX roof windows and Sun Tunnel systems
- Suitable for new build and refurbishment applications
Compatibility and sizing
This flashing kit is engineered exclusively for VELUX roof windows and Sun Tunnel systems with dimensions of 1340×980mm (134×98cm). Before ordering, confirm that your roof window matches these exact dimensions. The recessed flashing type is designed to integrate neatly into pitched roofs where the window sits flush with the roof plane. Check your roof window documentation or the product label to verify compatibility. This kit is not suitable for windows of different sizes or other manufacturers' products.
- Window size: 1340×980mm only
- Recessed flashing type for flush roof integration
- Compatible with VELUX roof windows and Sun Tunnel systems
- Verify window dimensions before purchase
Pre-installation checks and preparation
Before fitting, inspect the roof opening to ensure it matches the 1340×980mm specification and that the roof structure is sound and dry. Check that the roof pitch and tile or slate type are suitable for the flashing system. Ensure you have adequate access and safety equipment for working at height. Lay out all components from the kit and verify that the 8mm slate flashing and BDX 2000F frame are present and undamaged. Read the installation instructions supplied with the kit carefully, as proper fitting is essential for weather-tightness and long-term performance.
- Verify roof opening dimensions match 1340×980mm
- Inspect roof structure for soundness and dryness
- Check roof pitch and material compatibility
- Ensure all kit components are present and undamaged
- Review installation instructions before starting work
Installation and fixing
The BDX 2000F installation frame provides the structural support for the window and flashing system. The 8mm slate flashing is designed to integrate with typical UK roof materials and weather conditions. The recessed design means the flashing sits flush with the roof surface, creating a neat finish. Proper installation is critical to ensure a weather-tight seal and reliable long-term performance. Follow the detailed installation instructions supplied with the kit, which will guide you through securing the frame and flashing correctly. If you are unsure about any aspect of the installation, consult a qualified roofer or VELUX installer.
- Use the BDX 2000F frame as the primary structural support
- 8mm slate flashing integrates with UK roof materials
- Recessed design creates flush, neat roof finish
- Follow supplied installation instructions precisely
- Consider professional installation for complex roof situations