UNISLATE Universal Slate Vent Data Sheet (PDF, opens a new tab)
PDF · discovered on the published product page. File version and current applicability require confirmation.
Roof ventilation / Product information
The Corovent Universal Slate Vent is a discreet and cost-effective vent suitable for the majority of slate roofs.

Published product information
Universal slate vent designed to be used with natural slates
Grille and back box style vent incorporates a round felt sleeve to penetrate felt
Provides 8000mm 2 of ventilation
Slate Roofs
Full installation details are available on request from the Technical Department.
Universal Slate Vent Technical Data
| Slate Vent | Ventilation Area | Roof Pitches | Spacing to give continuous ventilation |
|---|---|---|---|
| Unislate | 8 000mm2 | Over 20° | 5mm at 1.6m spacing 10mm at 800mm spacing |
Installation: Cowl or Roofline Vents for Slate Roof
Complete roofing to one course below the position for the slate vent. Hold vent in position as centrally as possible between the rafters and mark where the vent spigot touches the underlay. For 500mm x 250mm slates only - cut and remove section of batten. Cut underlay in a cross, fold up and back, nail over battens. Cut slates for next course below vent. Fit slate vent and nail to batten. Cut slates for next course (not for 600mm x 300mm roofline vents).
Supporting resources
PDF · discovered on the published product page. File version and current applicability require confirmation.
PDF · discovered on the published product page. File version and current applicability require confirmation.
Linked in the published catalogue
Range & components
Corovent Roofline vents are made to blend in discreetly with existing roof tiles. They incorporate a factory fitted round felt sleeve which penetrates the felt, so no extra slee…
Explore rangeRange & components
Corovent Cowl vents offer unobtrusive low or high level ventilation in tile roofs. The Cowl vent can blend almost invisibly to any roof: new build or conservation, because of Ar…
Explore rangeRange & components
Corovent Ridgeline Vents are designed to replace a normal ridge tile suiting most concrete and clay ridges. Their unique design allows them to be fitted without cutting any exis…
Explore rangeRange & components
Eaves ventilation is a simple and effective way of providing the necessary air movement within a cold roof. It is most effective when used in conjunction with high level roof ve…
Explore rangeRange & components
The rafter tray maintains a clear air space of either 10 or 25mm from the eaves to the roof void, by creating a barrier for the roofspace insulation.
Explore rangeRange & components
Ariel provide a range of soffit vents designed for use with a traditional fascia and soffit board. Available in black, brown or white, soffit vents can be used with any roof pitch.
Explore rangeRange & components
An extensive range of high quality ventilation accessories for easier and quicker installation of Corovent Roof Ventilation products.
Explore rangeProduct & project support
Keep this product context with your enquiry and let Ariel confirm the next step.
Content imported from Ariel’s published product information, captured 27 October 2026. Final technical/content approval is pending; current stock, delivery and warranty assurances are not asserted. Source reference (opens a new tab) ↗