Over Fascia Vent - Black - Pack of 20

The Ubbink Over Fascia Vent provides a 10mm equivalent air gap, delivering 10,000mm² of airflow pe...

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Professional Building SuppliesUbbink Over Fascia Vent - 10Mm Air Gap - Pack Of 20
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£47.04
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B&QB&Q - Over Fascia Vent 1M X 10mm Air Gap Pack Of 20PolypropyleneBlack.
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£59.79
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Product Information

Full details

The Ubbink Over Fascia Vent is an essential roofing component designed for professional contractors and DIYers looking to maintain building health through effective roof space ventilation. By providing a 10mm equivalent air gap, this product prevents moisture buildup and condensation, though it is specifically optimized for roofs with a pitch of 30 degrees or greater. This pack of 20 units ensures consistent airflow across the entire roofline while integrating seamlessly with various roofing materials.

All features

ColourBlack
Model Part Number294128PK20
BrandUbbink

Extended Product Information

FAQs

Can these be used on a flat roof?

No, these vents are designed specifically for pitched roofs with a slope of 30 degrees or greater.

How many units are in one pack?

This product comes in a pack of 20 units.

Does this provide 10mm or 25mm of ventilation?

This specific model provides a 10mm equivalent air gap, offering 10,000mm² of airflow per metre.

Will this work with slate roofing?

Yes, it is compatible with all types of tile or slate roofing.

Where exactly is the vent installed?

The vent is nailed to the top of the fascia board, underneath the roof felt.

Troubleshooting

Airflow seems restricted after installation

Check that the felt has not been pulled too tightly across the vent openings; it should allow for an air gap.

Debris buildup in the vent mesh

Clear the guttering system regularly to prevent leaves and sediment from blocking the mesh ventilation slots.

Pros and Cons

Pros

  • Prevents condensation and moisture-related timber decay
  • Built-in mesh prevents pest infestations
  • Compatible with both slate and tile roof finishes
  • Easy to install on the top of fascia boards

Cons

  • Not suitable for low-pitch roofs under 30 degrees
  • Requires specific placement under the roof felt
  • Not compatible with fascia boards that are already weathered or rotting

Setup, Compatibility & Care

To install, nail the vent units securely to the top of the fascia board. Ensure that the underlay felt is draped over the top of the vent to direct water into the gutter while maintaining the airway.

  • Compatibility: Suitable for use with all tile and slate profiles.
  • Pitch Requirement: Only for use on roof slopes of 30 degrees or steeper.
  • Maintenance: Periodically check the guttering to ensure debris is not blocking the entry points of the vent to maintain maximum airflow efficiency.

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