Fixing and buying guide

What this product is and who needs it

This recessed flashing is an essential weatherproofing component for timber window and door installations. It sits between the frame and the building fabric to prevent water penetration at the critical junction where windows and doors meet walls. Builders, renovation contractors, and serious DIY installers working with timber frames on new builds or renovation projects will require this product to meet UK building standards for weather resistance and durability.

Sizing and compatibility

The 78x118cm size suits common timber window and door frame dimensions found in standard UK construction. Before ordering, measure your frame opening to confirm this size matches your installation requirements. The recessed flashing is designed to work with standard timber window and door frames; verify your frame type is compatible with recessed flashing installation before purchase.

• Size: 78x118cm
• Material: Plastic construction
• Timber Grade: EDN MK06 2000 specification
• Suitable for both new builds and renovation projects

Pre-installation checks and preparation

Inspect the flashing on delivery for any damage to the plastic material or edges that could compromise the weather seal. Check that your timber frame is in sound condition and free from rot or damage before installation. Ensure the building opening is square and level, as poor preparation will prevent the flashing from creating an effective weather-tight seal. Have all necessary fixings and sealants ready before beginning work.

• Verify frame opening dimensions match the 78x118cm flashing size
• Check timber frame condition and structural integrity
• Ensure opening is square and level
• Inspect flashing for transport damage on delivery

Weather protection and durability

This recessed flashing provides a weather-tight seal that protects against water ingress at the window or door junction. The EDN MK06 2000 specification delivers rot and insect damage resistance, ensuring the flashing maintains its protective performance over time. Proper installation is essential to achieve the full weather-tight seal and long-lasting protection this product is designed to deliver.