A good level of ventilation in the roof space is vital to prevent damp and mould building up. One of the easiest ways to achieve the required air flow is through the use of roof tile vents. A roof tile with vent can be slotted in every so often, alongside unvented tiles. This allows the easy passage of air, at the same time as ensuring that rain doesn't penetrate in large quantities. For additional ventilation, some projects may require a roof tile vents extractor fan. Roof slate vents and roof tile vents for extractor fans provide an easy method of roof ventilation which is simple to fit and extremely cost-effective.