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Velux Recessed Slate Flashing - MK08 - EDN MK08 2000

Velux Recessed Slate Flashing - MK08 - EDN MK08 2000

The Velux Recessed Insulated Slate Flashing delivers professional-grade weatherproofing engineered...

Best current price£217.26from Travis Perkins

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VELUX Recessed Slate Flashing Including BDX Insulation Collar to Suit MK08 Roof Window 780 x 1400mm

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Travis PerkinsVELUX Recessed Slate Flashing Including BDX Insulation Collar to Suit MK08 Roof Window 780 x 1400mm
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Product Information

Full details

The Velux Recessed Slate Flashing (EDN MK08 2000) is designed for professional roofers and homeowners looking to achieve a flush, streamlined roof window integration. Its primary benefit is a high-performance, weather-tight seal combined with an integrated insulation collar that significantly improves thermal efficiency by eliminating cold bridges. While it offers a superior architectural aesthetic, it requires precise installation techniques and is strictly limited to natural slate applications up to 8mm thick.

All features

Model Part NumberEDN MK08 2000
BrandVelux

Extended Product Information

FAQs

Can I use this flashing with artificial slate?

This product is specifically designed for natural slate. Using it with artificial or composite slates may result in poor fit and weatherproofing failure.

What is the maximum slate thickness allowed?

The flashing is compatible with natural slate up to 8mm thick.

Does this kit include the BDX insulation collar?

Yes, the EDN MK08 2000 system comes complete with the BDX insulation collar as part of the thermal performance package.

Is this compatible with flat roof tiles?

No, this specific flashing is optimized for the dimensions and drainage requirements of natural slate roofing.

What roof pitches does it support?

It is suitable for roof pitches between 20 and 90 degrees.

Can I install this on a non-recessed frame?

The bracket design is flexible enough to support standard installation heights, though the product is optimized for a recessed finish.

Troubleshooting

Visible gaps between flashing and slate tiles

Verify that the slate thickness does not exceed the 8mm limit and check that the flashing brackets are tightened to the correct recessed depth.

Water pooling near the window head

Inspect the transverse drainage gutter for obstructions and ensure the underfelt collar (BFX) is installed without folds that could trap water.

Pros and Cons

Pros

  • Provides a clean, aesthetically pleasing flush finish on slate roofs
  • Enhanced thermal performance via the BDX insulation collar
  • Complete kit includes essential underfelt collars and drainage components
  • Flexible bracket design simplifies the adjustment process for installers

Cons

  • Strictly limited to natural slate roofing materials
  • Requires specific professional-level installation expertise
  • Not suitable for slate thicknesses exceeding 8mm

Setup, Compatibility & Care

To ensure proper performance, verify that the roof pitch is within the 20-90 degree range. The MK08 size is specifically for windows measuring 780 x 1398mm.

  1. Ensure the roof battens are positioned correctly to allow for the recessed depth.
  2. Install the BDX insulation collar around the window frame before securing the flashing components.
  3. Secure the BFX underfelt collar to the roof structure to provide a moisture-tight barrier.
  4. Fit the flashing sections in the order specified by the Velux installation manual, ensuring the transverse gutter is properly seated.

Regular care involves keeping the flashing channels free of debris, such as leaves or moss, to maintain efficient drainage.

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