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Product profile: Bat Vents by Cembrit

An innovative solution tackles bat roosting issues in buildings

Cembrit in association with the Bat Conservation Trust has designed the Bat Vent, an innovative slate roof accessory which facilitates uninterrupted bat roosting during project work.

In recent years natural bat roosts have declined in numbers, increasing the likelihood of them residing in buildings. Bats commonly roost in old buildings with slate roofs and if found during construction work can affect both project timescales and costs.

Due to declining numbers, bat species are protected by law in the UK. Legislation makes it illegal to obstruct access to bat roosts or do anything that might damage or disturb them. If found they must be dealt with in the correct way, which may include obtaining licenses and advice from an ecological consultant.

The following legislation would be relevant to projects which encounter bats:

The Bat Vent aims to make dealing with bats easier, enabling installation with little disruption to the bat roost.

Compatible with many common slate finishes and sizes, the vent is installed in the same bond as the surrounding slates creating a homogenous look across the roof. The vent is fixed and supported by cutting the intermediate batten between the rafters to accommodate the air channel beneath.

The vacuum formed weathering cowl protects the interior from rain ingress. A chamber is attached to this forming an access channel allowing bats in and out of the roof space. A factory applied non-slip surface allows bats to grip when landing on the unit.

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