The Ubbink OFT-5 Insulated Flat Roof Vents are designed for optimal ventilation in soil and vent systems, suitable for both mechanical and natural (passive) ventilation installations. These vents feature a higher insulation value above the roof space, significantly reducing the risk of condensation and ensuring efficient air flow.
With a large free vent area and low Pascal resistance, the OFT-5 range is fully insulated to the cowl, providing excellent thermal performance. The two-piece stack with an aluminium flange ensures durability and ease of installation, making these vents a reliable choice for maintaining effective flat roof ventilation.
Diameter: 150mm
Height Above Roof: 380mm
Flange Diameter: 490mm
Depth Below Roof: 608mm
Free Vent Area: 14,400mm²
Pa Resistance: 1.3
Please note: This unit is provided as a 166mm diameter stack with a reducer to bring size down to 150mm