Roof Terminal OFT-4 110 - Flat Roof

The Ubbink OFT range vents are capped stacks for use in the below roof types. There are five flange types for different roof covering that suit the OFT range ranging from 110mm diameter to 166mm. With the following roof finishes: • Asphalt • Built up felt • EPDM • Bitumen • GRP roofs The OFT/4 has a special low air resistance cowl – the pressure/airflow resistance is <1.0 Pascal at 225m3/h (available in all materials). The pipework above the roofline is twin walled and incorporates an integral condensation drain. The stack pipe has an integral collar and separate flashings to match the above mentioned materials. It should not be installed in extreme areas due to the openness of the cowl.

• Large free vent area/Low Pa resistance
• Made of high-quality PP
• Applicable for all weather conditions
• High ventilation capacity
• The pipework above the roofline is twin walled and incorporates an integral condensation drain
• Elegant design
• For new build and renovation purposes