Fixing and buying guide

What this product is and who needs it

This is a tile flashing kit for roof installations where a VELUX roof window or similar penetration meets pitched roof tiles. It is essential for builders, roofers, and serious DIY customers carrying out roof window installations or roof repairs on properties with tiled pitched roofs. The flashing prevents water from running behind tiles and into the building structure, making it a critical weatherproofing component rather than optional.

Sizing and compatibility

The flashing measures 94 x 118mm and is designated PK06 size, which is the standard flashing size for VELUX roof windows in the PK06 range. Before ordering, confirm that your roof window or penetration is PK06 specification. This flashing is compatible with most standard roofing systems and pitched roofs up to 2m high. Check your roof pitch and tile profile against the product specification to ensure correct fit.

• Size: 94 x 118mm (3.78 x 4.61 inches)
• Suitable for roofs up to 2m high
• Confirm PK06 compatibility with your roof window or penetration before purchase

Materials and durability

The timber component is FSC-certified 94 Spruce, a sustainably sourced softwood that provides structural support and is treated for weather resistance. The steel flashing is finished with silane coating, which offers superior protection against rust, corrosion, and weathering compared to standard finishes. This combination ensures the flashing will perform reliably in exposed roof conditions over many years.

• FSC-certified 94 Spruce timber for environmental responsibility and durability
• Silane-coated steel finish resists rust and weathering
• Designed for long-term performance in domestic and commercial applications

Pre-installation checks and preparation

Before fixing, inspect the flashing for any damage to the timber or steel coating. Ensure your roof tiles, battens, and underlying structure are sound and level. Check that the roof opening is the correct size and shape for PK06 flashing. Have all necessary fixings, sealants, and roofing materials to hand before starting work. If you are inexperienced with roof work, consider engaging a qualified roofer, as incorrect installation will compromise the watertight seal and lead to water damage.

• Verify the roof opening is PK06 size and properly prepared
• Inspect flashing for damage before installation
• Ensure roof structure, tiles, and battens are in good condition
• Have all fixings and sealants ready before starting work