Fixing and buying guide

Who this product is for

This flashing is intended for builders, roofers and serious DIY customers installing or replacing roof windows in domestic properties or commercial buildings. It suits projects where you are fitting medium-sized window openings and need reliable weather protection at the roof interface.

Compatibility and sizing

The 94 x 140cm size accommodates medium-sized roof window openings. Before ordering, confirm your window dimensions match this flashing size. The flashing is compatible with timber frames, brickwork and concrete substrates, making it versatile for most roof construction types. Check that your roof structure and window frame are in good condition before installation, as the flashing performs best when fitted to sound surfaces.

• Suitable for timber-framed roofs, brick and concrete construction
• 94 x 140cm dimensions suit medium window openings
• Verify window size matches flashing dimensions before purchase
• Confirm substrate condition is sound prior to fitting

Material and durability

This flashing is manufactured from timber-grade material with a natural finish. The timber construction provides durability and natural resistance to weathering when properly installed and maintained. The natural finish integrates well with traditional timber roof structures.

Pre-installation checks

Before fitting, inspect the roof opening and surrounding structure for damage, rot or deterioration. Ensure the window frame is square and level, and that the opening dimensions correspond to the 94 x 140cm flashing size. Check that all substrate surfaces (timber, brick or concrete) are clean, dry and free from loose material. Have all necessary fixings and sealants to hand before beginning installation to ensure a complete weather-tight seal.