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Professional Building Supplies£80.40Visit shop Ubbink Over Fascia Vent - 25Mm Air Gap - Pack Of 20
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B&Q£94.82Visit shop B&Q - Over Fascia Vent 25mm Air Gap Pack Of 20 Black.
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The Ubbink 25mm Over Fascia Vent is an essential solution for roofing contractors and DIY enthusiasts looking to ensure effective eaves ventilation in new builds or renovation projects. Providing a consistent 25,000mm² of airflow per metre, this product helps prevent moisture buildup and condensation within the roof space, effectively prolonging the lifespan of your roof structure. While it offers excellent performance and compatibility with all standard tile and slate types, users should note that it requires proper installation during the fascia boarding phase, making it less suitable for retrofitting without removing existing roof coverings.
| Colour | Black |
|---|---|
| Model Part Number | 294121PK20 |
| Brand | Ubbink |
The pack includes the vent units; however, you should use standard corrosion-resistant roofing nails appropriate for your specific fascia material.
Yes, the 25mm Over Fascia Vent is compatible with all types of roof tiles and slate.
The mesh is designed to allow airflow while keeping pests out. In standard environments, it does not require frequent cleaning.
Each pack of 20 covers 20 metres of eaves, providing 25,000mm² of airflow per metre.
The rigid nature of these vents makes them best suited for straight fascia runs; they may not conform well to tight curves.
The product is designed to be hidden by the tiles and fascia trim, so painting is generally unnecessary.
Check that the roofing felt has not slumped over the vent openings or that debris from installation isn't trapped in the mesh.
Ensure the fascia top edge is not uneven; use a plane to smooth the timber surface before fixing the vents.
Use a chalk line along the fascia board to keep the vents perfectly straight across the entire eaves length.
Installation requires access to the eaves before the final tiles or slates are laid. First, ensure the fascia board is securely fixed and level. Position the vent along the top edge of the board, ensuring the front edge is flush. Secure the vent by nailing through the provided fixing points into the fascia. Once secured, dress the roofing felt over the vent, ensuring it sits flat and does not block the airflow path. No special maintenance is required, though it is good practice to visually inspect the vents during roof maintenance to ensure the mesh remains free from excessive debris or paint buildup.
