An over-fascia vent is a type of ventilation system that is installed above the fascia board of a roof. The purpose of an over fascia vent is to provide ventilation to the roof space, allowing air to circulate and preventing the build-up of moisture and condensation.

The over-fascia vent consists of a series of grilles that are fixed to a frame, which is installed above the fascia board. The grilles allow air to enter the roof space, while also preventing the ingress of birds, insects, and other debris.

Over fascia, vents are particularly useful in situations where there is limited space in the eaves to install traditional soffit vents. They are also suitable for use in situations where the fascia board has been extended to accommodate the installation of external insulation.

It is important to ensure that the over fascia vent is correctly sized and installed to ensure adequate ventilation to the roof space. The number and size of vents required will depend on the size of the roof and the ventilation requirements of the building. A qualified roofer or builder can advise on the correct specification and installation of an over fascia vent.

Small Size – for cold roofs (i.e. insulation between ceiling joists)

Large Size – for warm roofs (i.e. insulation between rafters)

1. Improved ventilation: An over fascia vent provides effective ventilation to the roof space, allowing air to circulate and preventing the build-up of moisture and condensation. This helps to maintain the integrity of the roof structure and can prevent damage caused by dampness.

2. Easy installation: Over fascia, vents are easy to install and can be fitted without the need for scaffolding. This can save time and money compared to traditional ventilation systems, which may require more complex installation methods.

3. Versatility: Over fascia, vents are suitable for use on a range of different roof types, including pitched roofs with tiles, slates or sheet materials.