Are you looking for a Ventilator that looks Remarkable on a Traditional Slate or Tiled roof? These vents are manufactured to enhance air into your Loft Spaces & Voids. They can also be used for other scenarios like Soil Vent Pipes & Other Pipes which penetrate through the roof covering. These Standard Roof Vents are 100% Maintenance Free & are made from 100% Recyclable Materials. If you require large quantities of these then give us a call and see if we can arrange a deal on your postage.