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Highly Durable and Robust Flat Roof

Installing Ultraframe’s Flat Roof in your Guernsey home adds an extra layer of protection, capable of withstanding harsh weather while maintaining strength and durability. These roofs can span up to 5.6 m above bi-fold or sliding doors without additional support, making Ultraframe’s Flat Roof one of the most robust systems available.

Our flat roof systems combine functionality and style, using top-quality materials and advanced technology to ensure long-lasting performance. Designed with Guernsey’s climate in mind, they offer superior resistance to weathering, protecting your investment year-round. Whether renovating or building new, an Ultraframe flat roof adds value, efficiency, and peace of mind to your property.

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Lightest Flat Roof System

This roof is exceptionally lightweight, making it easy to handle and placing minimal strain on your Guernsey extension. At just 51 kg/m², it can be installed quickly and efficiently. Designed to work with continuous window frames and Ultraframe’s patented lightweight panel technology, a new Ultraframe Flat Roof delivers maximum benefits with minimal disruption.

Choosing Novaseal means choosing precision, reliability, and top-tier customer service. Our expert team in Guernsey will guide you through every stage, from design consultation to installation and maintenance, ensuring a smooth experience and outstanding results.

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Simple Installation Process

A key advantage of Ultraframe’s Flat Roof is its all-in-one system. Your order includes the roof deck, kerb, and roof lights in a single package, eliminating delays from multiple orders and allowing your Guernsey roof to be installed quickly. The system is also assessed and approved by Jhai and Assent Building Control for added reassurance.

Novaseal is the leading provider of Ultraframe Flat Roofs in Guernsey and a trusted name in the construction industry. As a CERTASS-certified contractor, we ensure all installations meet current building regulations and are registered with the local council. Plus, as a Which? Trusted Trader, our commitment to quality and customer satisfaction is independently verified, giving you confidence in choosing a reliable and professional team.

Increased Thermal Performance

Conservatories, orangeries, and extensions can often become too hot or too cold over time. Upgrading to Ultraframe’s Flat Roof keeps your Guernsey home comfortable year-round. With a U-value of 0.12 W/m², the roof effectively retains heat, while 225 mm of insulation, vapour-proof membranes, fully insulated ring beams, and an integrated kerb ensure it’s fully weatherproof. Enhance your home’s thermal performance and enjoy your space in every season with a new Ultraframe roof.

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The Benefits of the Ultrasky Roof

We supply and install Ultraframe’s Flat Roof for homeowners across Guernsey. Upgrading your conservatory, orangery, or extension brings a host of benefits, combining high-quality, durable materials with long-lasting performance. Read on to discover the key features and advantages your new roof can bring to your home.

Customisable Options

Designing your new Ultraframe Flat Roof is simple and highly flexible. With a wide range of widths, RAL colours, optional external soffits, four fascia designs, and up to two roof apertures, you can create a bespoke roof that perfectly complements your extension.

With over 25 years of experience enhancing properties across Guernsey, Novaseal brings expert knowledge and creativity to every project. Our long-standing presence in the industry reflects our ability to innovate and deliver high-quality, contemporary designs. Whether installing a new Ultraframe Flat Roof or upgrading an existing structure, our team provides tailored solutions that balance both style and functionality.

Ultraframe’s Flat Roof is designed for quick and easy installation, so you can start enjoying its benefits sooner. The system features high levels of prefabrication, including a no-genie-lift design, easy-fit pre-manufactured soffits, clip-fit panels, and the patented Pitchlock fall system, all of which speed up installation and improve efficiency.

Novaseal’s Ultraframe Flat Roofs in Guernsey are engineered for outstanding thermal performance, often exceeding current energy efficiency standards. Using industry-approved insulation, these roofs keep commercial spaces comfortable year-round while reducing heating costs, delivering measurable annual savings. Get in contact to learn more!

At Novaseal, we partner with trusted companies to ensure our customers receive high-quality, secure products. Ultraframe complies with the latest building regulations and is approved by Assent and JHAI, while their Ultrapanel technology carries BBA approval, giving you confidence that your roof meets the highest industry standards.

Ultraframe flat roofs combine practicality with aesthetic appeal, integrating seamlessly with any commercial architecture. Built with minimalistic yet durable components, each installation complements the existing style of your building. Whether preserving traditional charm or enhancing a modern facade, our Guernsey design team delivers roofs that align perfectly with your architectural vision.

Ultraframe Flat Roof Prices Guernsey


Enhance your Guernsey home today with Ultraframe’s Flat Roof. Our team at Novaseal, are here to help you increase the thermal comfort and durability of your conservatory, orangery or extension.

We also supply to homeowners in Fareham, Southampton, Portsmouth and surrounding towns using our installer network. Get in contact to learn more!

If you have any questions about Ultraframe’s products or our installation process, then don’t hesitate to contact us. You can give us a call on 01329 233500 or use our online contact form and one of our members will be happy to help. 

We look forward to working with you on your next home improvement project!

Accreditations

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FAQs

What is the Ultraframe Flat Roof, and why is it ideal for Guernsey extensions?

The Ultraframe Flat Roof is a purpose-built system for conservatories, orangeries, and extensions. Lightweight at around 51 kg/m², it can span up to 5.6 m over large openings and offers a sleek, modern design that can be customised with any RAL colour or fascia style.

At Novaseal, we prioritise sustainable building practices. Our Ultraframe flat roofs in Guernsey use recyclable materials and eco-friendly production methods, helping to reduce environmental impact. Each installation is designed to include features such as rainwater harvesting, supporting sustainability while enhancing your property’s appeal to eco-conscious clients.

With 225 mm of insulation, an integrated vapour control layer, and fully insulated ring beams and kerbs, Ultraframe flat roofs achieve U‑values as low as 0.12 W/m²K, keeping interiors comfortable year-round. Durability is a key feature of Novaseal’s installations, designed to withstand Guernsey’s harsh maritime climate, including strong winds, heavy rain, and corrosive salt air. Using only high-quality, rigorously tested materials, these roofs offer long-lasting performance, minimising maintenance and protecting your property with reliable resilience year after year.

Yes. Ultraframe’s Flat Roof is engineered to site-specific requirements, spanning up to 5.6 m without additional support and accommodating large skylights. It is JHAI, Assent, and BBA approved, meeting rigorous safety and building standards.

For a consultation or to start your project with confidence, use our streamlined quote system. Discover how an Ultraframe flat roof can transform your Guernsey property into a modern, functional, and eco-friendly space.

Customers can choose from four fascia styles, optional soffit details, two skylight apertures, and any RAL colour finish, the kit includes the roof deck, kerb, and rooflights in one order for seamless design.

The system is fully compliant with Building Regulations and holds approvals from JHAI, Assent, and MFA, with Ultraframe’s Ultrapanel technology BBA-certified—providing streamlined regulation and assured quality.


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