ISOLINE LOW LINE Distributor Partners
Integrating Tile Aesthetics with Sub-Roof Resilience
Elevating Architecture through Prestigious Partnerships
Onduline’s ISOLINE LOW LINE is the professional’s choice for sub-roof waterproofing. To provide a complete, high-performance building envelope, we have established strategic partnerships with some of the industry’s most prestigious suppliers.
By integrating our technical waterproofing expertise with premium aesthetic materials, we ensure that design vision and structural integrity work in perfect harmony.
Find a stockist
Find Your Local ISOLINE® LOW LINE Stockist
You can source ISOLINE® LOW LINE from major suppliers, including:
- Ariel Plastics: One of the UK’s leading distributors of roofing, glazing, and plastic building materials.
- Beesley & Fildes: A premier independent builder's merchant across the North West, perfect for regional collections and site deliveries.
- Burton Roofing Supplies: One of the UK's leading independent distributors of roofing materials, offering extensive stock and expert trade counter support.
- Southern Sheeting: Specialist suppliers of roofing and cladding materials, providing fast distribution and excellent technical support.
- Wickes: Offering convenient nationwide availability for delivery, perfect for keeping your smaller or residential projects moving.
Don't see your preferred merchant listed? No problem.
Onduline has a robust nationwide supply chain. We can supply any merchant throughout the UK. If your local independent yard or chosen national stockist does not currently have ISOLINE® LOW LINE on the racks, simply ask them at the trade counter to order it directly from Onduline for your project.
Looking for an installer?
Northstone Materials
ISOLINE LOW LINE partner
Expanding Possibilities with Northstone Tiles

Our commitment to versatile roofing solutions extends through our partnership with Northstone Tiles, the premier manufacturer of concrete tiles based in Northern Ireland.
Traditionally, flat-profiled concrete tiles are limited by pitch constraints. However, by utilising ISOLINE LOW LINE as a secondary roof, we unlock new architectural possibilities for the Northstone range:
- Ultra-Low Pitch Capability: Achieve a sleek, modern look with Northstone’s tiles at pitches as low as 10°.
- Total Versatility: Whether it’s a new build or a sensitive renovation, the combination of Northstone’s durable concrete finish and Onduline’s waterproofing ensures a roof that is as resilient as it is attractive.
- Trusted Engineering: Northstone’s manufacturing excellence meets Onduline's protection.
European Building Materials Suppliers
ISOLINE LOW LINE partner
The Seamless Finish with Petersen Tegl & ISOLINE LOW LINE Integration

Modern architecture often demands a seamless transition between the roof and the facade. To achieve this "monolithic" aesthetic, building designers are increasingly turning to the cladding tiles or similar, like the Petersen Tegl cladding tile.
Known for its extraordinary craftsmanship and organic textures, the Petersen Tegl tile can be used across both the roof and the walls of a project to create a stunning, continuous finish.
- The Aesthetic: The Petersen Tegl tile provides the iconic, handcrafted exterior beauty.
- The Protection: ISOLINE LOW LINE is installed underneath as a professional sub-roof system. It acts as the primary waterproofing layer, allowing the external tiles to function as a decorative rainscreen.
- The Result: A watertight guarantee even on complex designs, while the tile takes full care of the aesthetics.
Available from our partner distributor, European Building Materials Suppliers.
Why Choose ISOLINE LOW LINE?
As the leading sub-roof system in the UK, ISOLINE LOW LINE offers:
- Low Pitch Flexibility: Ideal for extensions or modern designs where a steep pitch isn't possible.
- Enhanced Ventilation: Promotes airflow to reduce condensation risk and improve longevity.
- Ease of Install: Lightweight sheets that are easy to handle, significantly reducing time on-site.
- Guaranteed Peace of Mind: A long-term waterproofing guarantee, supported by the premium supply chains of EBM and Northstone.
Ready to Elevate Your Project?
Through our partnerships with European Building Materials Suppliers and Northstone Tiles, accessing the finest cladding and concrete tiles - and the world’s most reliable waterproofing - has never been easier.
Contact our distribution partners today to request a sample or technical consultation.