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Roof Vents

Plastic roof vents are becoming an increasingly popular choice in modern construction due to their durability and ease of installation. Plastic roof vents are resistant to rust and corrosion, making them ideal for use in harsh or humid environments. They are also extremely lightweight, making them easy to handle and install, even in high locations or on steep roofs. Ariel roof vents are made to fit and complement your exact roof tile, unlike standard roof vents that are universal in size and design. The Ariel Plastics roof tile vents are Tailor-made to fit perfectly into the tiles they suit so it is essential to identify your roof tile first. Corovent roof tiles provide optimal ventilation for your roof space and can provide ventilation for extraction and soil stacks, while also enhancing the aesthetic appeal of your roof. Overall, Ariel Plastic roof ventilation tiles are a versatile and reliable solution for providing essential ventilation to roof spaces while also maintaining the aesthetic integrity of a building's design.
 

Features and Benefits

  • A unique discreet cassette allowing the RV10K inline roof vent to sit unobtrusively in the roof yet always keeping water above the roofline.

  • Cowl Incorporates barriers to prevent water ingress and block wind driven rain, allowing the water to drain away down slope.

  • Factory fitted round felt sleeve which significantly reduces the felt tearing that can occur around rectangular spigots.

  • Large spigot for excellent roof ventilation.

  • Varying Ventilation Area: 10,000mm Sq (Small Cowl) - 20,000mm Sq (Large Cowl).

  • Pipe Adaptor: Factory fitted with 100 - 110mm diameter pipe adaptor for connection to extractors (Large Cowl Adaptor can be cut back to form a 125mm connection).

  • A wide range of colours.

  • Exceeds all relevant parts of DoE Partners in Technology Programme.

  • Suitable for roof pitches 20 degrees and above.

Ariel Plastics

Ariel Plastics is a prominent supplier of plastic roofing materials in the UK, offering a wide range of products for different roofing applications. The Harcon Corovent Range includes Roof tile Cowl vents, Roofline vents, Economy vents and Ridgeline Vents. Ariel roof vents exceed all relevant parts of DoE Partners in Technology Programme water resistance requirements, are suitable for roofs with a 20 degrees pitch and above and are specifically designed to provide efficient and discreet ventilation solutions for various types of roofs, from profiled tiles, flat roof tiles, half round/angled ridges, and slates. Some features of Ariel Plastics' roof vents include their huge range of tile vents to suit any roof new or old and their colour and texture matching services that ensure they blend seamlessly with the roof. Overall, Ariel Plastics is a reliable partner for roofers who want high-quality, cost-effective, and efficient ventilation solutions.
 

Why Install Roof Vents?

Installing roof vents offers numerous benefits, such as decreasing condensation and improving temperature control in the property. Additionally, they reduce energy costs by allowing heat to escape the space easily, thus reducing the need for air conditioning and lowering energy bills. Another benefit of roof vents is that they extend the life of the roof by preventing ice damming, a dangerous and costly issue. Ice damming happens when heat from inside the attic, combined with the sun's heat, causes snow and ice to melt on the heated roof. The water runs to the roof's edge, where it refreezes, building up ice and water behind or under the roofing materials, causing severe damage to the whole roof system, leading to damage in the attic and inside walls of the property, as well. Consequently, roof vents are a necessary addition to avoid significant issues and increase the lifespan of roofs.


Why is ventilation important?

Proper ventilation is crucial to preventing various issues from occurring within a property, such as dampness, condensation, and unpleasant odours. If ventilation is not correctly applied to a space, it can lead to loft dampness, caused by warm, moist air becoming trapped in an unventilated loft space or one that cannot ventilate quickly enough. Everyday activities such as showering, cooking, or drying clothes indoors can create warm, moist air that condensates on cold surfaces in the loft, forming small or large droplets of water along the colder areas. Dampness in loft spaces can result in severe problems, including structural damage, health issues or costly repair work, making ventilation essential.
 

Cowl Vents

The Harcon Corovent Low Profile Roof Tile Cowl Vent offers an unobtrusive low- or high-level ventilation solution that comes with a round integral felt sleeve. This tile cowl vent is designed with barriers to prevent water ingress and block wind-driven rain that allows water to drain down the slope. The cowl comes with a felt sleeve that reduces felt tearing around spigots. The large spigot ensures an excellent roof ventilation system. The Tile Cowl Vent offers two options for ventilation areas, including 10,000mm Sq. (Small Cowl) and 20,000mm Sq. (Large Cowl). There is the option to add a pipe adapter with 100-110mm diameter for connection to extractors. The Large Cowl Adaptor can be cut back to form a 125mm connection. Compared to an in-line vent, the roof tile cowl vent is more visible on the roof line but provides superior protection against wind-driven rain.
 

In-line Roof Vents

Corovent Roofline Vents are discreet interlocking tile vents that are designed to blend seamlessly with the profile of the tile for an almost invisible appearance from the ground level. They come with several features, including a unique discrete cassette that always keeps water above the roofline. The vent has a round felt sleeve that reduces the risk of felt tearing around spigots, and a large spigot ensures excellent roof ventilation. Like Cowl Vents, there is an option for the vent to come with a pipe adaptor for connection to extractors. An inline roof tile vent is less visible on the roof line and has a ventilation area of 10,000mm Sq.
 

Slate / Economy Vents

The Corovent Economy Slate Vent is a practical and cost-effective ventilation option for slate roofs that offers discretion and efficiency. Made from strong, injection moulded polypropylene material with a matt grey finish, it features a ventilation area of 7,200mm sq. They are an excellent choice for those looking for a durable ventilation option without sacrificing the roof's aesthetics. Economy slate vents are readily available, unlike made-to-order cowl and in-line vents, providing a much quicker lead time. Please see estimated lead times here.


Ridgeline Vents

The Corovent Ridge Tile Vents extract air from the highest point of the roof, providing superior airflow efficiency that gives it an advantage over other ventilation systems. The unique design allows easy fitting without cutting any existing ridge boards. With a large ventilation capacity of 12,000mm sq., it is suitable as an outlet terminal on most passive ventilation systems, except for tiles less than 300mm long, which will have a lower ventilation capacity. It has a quality finish that is exceptionally suitable for heritage and conservation projects, as it blends seamlessly with the original tiles, making it almost indistinguishable. The ventilation area for ridge vents over 300mm long is 12,500mm sq., while shorter ridge vents will have a lower ventilation area. When used with a 125mm outlet, it has an airflow resistance of 4.0 Pascals at 30 litres per second. However, when used with a 110mm outlet, the resistance is 9.9 Pascals at 30 litres per second.
 

Roof Tile Vent Colour Matching

Ariel Plastics offers a roof vent colour and texture matching service that guarantees their products will blend seamlessly with the roof or building for a more aesthetically pleasing finish. Their colour matching service ensures that the Corovent will discreetly blend with existing tiles, even on a weathered roof. Additionally, the texture of the roof tile is matched to ensure a consistent look and feel. This service is useful for architects, roofing professionals, and homeowners who want high-quality products with a seamless finish.
 

How Do I Calculate the number of roof vents required?

Building Control specifies either High Level (Ridge) or Low Level (Eaves) airflow requirements for roofs, such as 5mm or 25mm continuous airflow. To determine how many vents to install and where to place them, we need to convert the "mm of airflow" to "number of vents" and "centres for roof vents." Check out our useful guide for further assistance.
How do I calculate the number roof vents required?


Frequently Asked Questions

Roofing Ventilation Online offers one of the largest selections of plastic roof tile vents online. With so many options, it can be challenging to know which one to choose. However, you can count on us to provide the right roofing tile vents for clay, concrete, and slate tiles, whether they are currently in production or discontinued. Even if the roof tiles are no longer being made, we may still be able to supply a tile vent that fits perfectly. Find our frequently asked questions and estimated lead times here.
 

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