Fixing and buying guide

Who this product is for

This flashing is essential for builders, roofers, and serious DIY customers installing or repairing roof penetrations on pitched timber frame buildings. It is particularly suited to projects where chimneys, roof vents, or skylights need secure weatherproofing. If your roof pitch falls between 30 and 60 degrees and you are working with felt, metal, or tile roofing, this product is appropriate for your application.

Sizing and compatibility

The 78 × 140cm dimensions suit standard roof penetrations and extended coverage requirements. Before ordering, confirm that your roof pitch falls within the 30–60 degree range, as flashings outside this specification may not perform correctly. Check your existing roofing material—this flashing is compatible with felt, metal, and tile surfaces. Measure the width and length of the area to be sealed to ensure the flashing dimensions will provide adequate overlap and coverage around your chimney, vent, or skylight.

• Roof pitch must be between 30–60 degrees
• Compatible with felt, metal, and tile roofing
• Dimensions: 78 × 140cm
• Suitable for chimneys, vents, and skylights

Material and durability

These flashings are manufactured from FSC-certified softwood, ensuring responsible forestry sourcing and reliable structural performance. The timber construction is designed to resist harsh weather conditions and provide long-lasting weatherproofing when properly sealed and maintained. FSC certification confirms the wood meets environmental and sustainability standards.

Pre-installation checks

Before fitting, inspect the flashing for any damage or warping in transit. Ensure the roof surface around the penetration is clean, dry, and free from debris. Confirm that the flashing dimensions will overlap adequately with your roofing material and that the pitch of your roof is within the 30–60 degree specification. Have appropriate sealants and fixings ready—these are not included with the flashing itself. Check that your roofing material (felt, metal, or tile) is in good condition before installation, as damaged roofing will compromise the seal.