Ubbink OFT 2 Flat Roof Construction Vent 110mm

The Ubbink OFT 2 Flat Roof Construction Vent is a 110mm breather vent designed specifically for built-up felt roofing systems. Whether you’re working on a new build or a roof renovation, this vent provides a reliable way to ventilate construction voids and reduce the risk of trapped moisture. Its low-profile design ensures a discreet finish, making it ideal for maintaining a clean, professional roofline appearance without compromising performance.

Efficient Ventilation, Built to Last

The OFT 2 features a large free ventilation area, allowing it to efficiently release trapped air and moisture from below the roof structure. This makes it particularly useful in flat roof constructions where breathability is essential to prevent condensation and long-term damage. Made from high-quality polypropylene (PP), the vent is built to handle all weather conditions. It won’t warp, degrade, or crack, even under prolonged UV exposure or extreme temperatures, ensuring lasting performance and reliability.

Designed for Practicality and Style

In addition to its functional benefits, the OFT 2 also boasts an elegant, unobtrusive design. Its minimalist profile allows it to blend into the roofing surface while continuing to provide essential airflow. It’s a smart choice for roofers and contractors looking for a dependable construction vent that doesn’t compromise on aesthetics.

Key Features

• 110mm breather void vent for built-up felt roofs
• Provides high free vent area for efficient airflow
• Low-profile, discreet design for visual consistency
• Made from durable, weather-resistant polypropylene
• Suitable for both new builds and refurbishment projects
• Performs reliably in all weather conditions
• Sleek finish for a modern, clean appearance

Frequently Asked Questions

1. What is the main purpose of the OFT 2 vent?

The OFT 2 is used to ventilate **construction voids** in built-up felt roof systems, helping to release moisture and prevent condensation build-up beneath the roofing layers.

2. Is this vent suitable for other roofing materials?

The OFT 2 is specifically designed for **built-up felt roofing**, and may not be suitable for other types like EPDM or GRP without additional compatibility checks.

3. Will the vent hold up in extreme weather conditions?

Yes. Made from **high-quality polypropylene**, the OFT 2 is built to withstand **harsh weather**, including rain, snow, UV exposure, and temperature fluctuations.

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At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

We work with many of the industry's leading manufacturers to bring you trusted products that meet the highest standards of quality and performance. Our team is passionate about providing excellent customer service, competitive pricing and a straightforward shopping experience from start to finish.

When you shop with JJ Building Materials, you can expect:

• Competitive prices on leading brands and quality products.
• Nationwide delivery across the UK
  
• A constantly expanding range of building and landscaping materials.
  
• Friendly, knowledgeable customer support.
  
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Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

Multiple Products from the Same Supplier

If you're ordering multiple products from the same supplier, your order will be dispatched together once all items are ready. This means the longest lead time will apply.

If you need part of your order sooner, please call us on 01202 113233. We can arrange a split delivery, although an additional shipping charge will apply.