High Flow Vents are a range of high-flow quality ventilating tiles to suit most popular interlocking roof tiles. They can be used for roof space ventilation at high or low level, or for soil ventilation or mechanical extraction when used with adaptor Features and Benefits Provide high levels of ventilation Vent caps designed to reflect the base tile profile Comprehensive range to match most makes of concrete interlocking tiles Adaptor and flexipipe available for soil ventilation or mechanical extraction Prevents entry of birds and large insects