Fixing and buying guide

What this product is and who it is for

This is a recessed roof flashing designed to seal the junction between your roof structure and roof penetrations or edges. It is suitable for trade roofers, experienced DIY installers and builders working on flat roofs, balconies and verandas. The straightforward installation process makes it accessible to competent DIY users, though professional installation is recommended for complex roof geometries.

Sizing and compatibility

The 55x98cm dimensions suit standard roof applications. Before ordering, measure your recessed roof area carefully to confirm this size matches your installation zone. Check that your roof structure can accommodate recessed flashing installation and that the surrounding materials are compatible with the EDJ CK04 grade. Verify roof pitch and any existing flashings that may need removal or adjustment.

What is included and pre-installation checks

Your flashing arrives as a single unit ready for installation. Before fitting, inspect the product for any transport damage and confirm dimensions match your site measurements. Check that the recessed roof area is clean, dry and free from debris, old sealant or damaged materials. Ensure the roof structure is sound and level enough to accept the flashing properly. Have all necessary fixings, sealants and tools to hand before starting work.

• Inspect for damage on arrival
• Measure and confirm fit in recessed area
• Clean and prepare the installation zone
• Check roof structure is sound and suitable
• Gather fixings and sealants before starting

Installation and maintenance

Installation is straightforward but must follow best practice for recessed roof flashings. Ensure the flashing sits flush and level in the recessed area, with all edges properly sealed to prevent water ingress. The durable construction minimises maintenance, but inspect periodically for any movement, cracking or sealant degradation, particularly after severe weather. Keep gutters and drainage clear to prevent water pooling around the flashing.