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Travis Perkins£193.80Visit shop VELUX Recessed Slate Flashing Including BDX Insulation Collar to Suit MK04 Roof Window 780 x 980mm
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The Velux Recessed Insulated Slate Flashing (MK04) is designed for homeowners and professional installers looking to achieve a flush, low-profile finish for roof windows in natural slate roofs. By positioning the window deeper into the roof structure, it provides a superior aesthetic while utilizing an integrated BDX insulation collar to significantly reduce heat loss and eliminate cold bridges. While this system offers exceptional thermal efficiency and a clean look, it requires precise installation and is exclusively compatible with natural slate tiles up to 8mm thick, making it less flexible than standard flashing kits.
| Model Part Number | EDN MK04 2000 |
|---|---|
| Brand | Velux |
No, this specific flashing is engineered strictly for natural slate up to 8mm thick; thicker materials will prevent the flashing from seating correctly.
No, this product is the flashing system only and is intended for use with the MK04 roof window model.
The primary benefit is aesthetics; the window sits lower in the roof structure for a flush, streamlined look.
While DIY-friendly for experienced users, the recessed installation is more complex than standard kits and requires careful attention to detail.
While primarily for thermal efficiency, the BDX collar provides a minor benefit in dampening external noise by filling the gap between the frame and the roof.
Inspect the transverse drainage gutter for debris blockage and ensure it is clear of slate shards.
Verify that the BDX insulation collar was seated flush against the frame during installation and check for gaps in the underfelt.
This flashing kit is designed specifically for the Velux MK04 roof window model. Before beginning, ensure your roof pitch is between 20° and 90°.
