Ubbink OFT/1F Flat Roof Vent/Terminal - 110mm

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Est. Delivery: 1-2 Working Days
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£22.70 Incl. VAT
£18.92 Ex. VAT
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Product Description

Suitable for a felt roof covering, Ubbink’s OFT/1 flat roof vent/terminal can be used in soil and vent systems, and for natural (passive) or mechanical ventilation installations. The Ubbink OFT/1 range provides a large free vent area whilst have a low Pascal resistance figure.

The Ubbink OFT/1 range is available in five different flange types for different roof coverings, Asphalt, Felt, EPDM, Bitumen and PVC, to allow termination through a flat roof to ducting up to 166mm. The stack cap is fixed mechanically so that it is more secure when installed in extreme weathers, however this can be removed for servicing purposes.

Features & Benefits

  • Suitable for felt roof covering
  • Easy removal for servicing purposes

Product Specifications

Material: Polyethylene

Weight: 1.72kg

Diameter: 110mm

Height Above Roof: 220mm

Flange Diameter: 330mm

Depth Below Roof: 600mm

Free Vent Area: 8400mm2

Pressure/Airflow Resistance: 5.9Pa

Product Documents


Colour Black Diameter 110mm Product Type Air Admitance Valve Fitting Type Push Fit

Frequently Bought Together


Questions & Answers


Have you got this for a bitumen felt application?


This item is provided with a flangle suitable for insyallation with Bitumen Felt.


How do you waterproof in grp roof. What do you deal with to make waterproof.


Part of installation will be dressing GRP back over the flange to make this waterproof. We would recommend getting a Roofer to do this job as GRP is a more specialist product.

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Ubbink OFT/1F Flat Roof Vent/Terminal - 110mm

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