Onduline Building Products Ltd

While Onduline is recognised for its versatile standalone sheets for roofing leisure buildings and light construction, its most critical contribution to modern specification is the ISOLINE LOW LINE sub-roof system.

• ISOLINE® LOW LINE: Designed specifically for use under clay, concrete and slate tiles - it is a professional-grade sub-roof system that allows for maximum design flexibility without compromising on weather protection.
• BRE tested and BBA Accredited to as low as 10^o with a 30-year guarantee.
• This lightweight bituminous underlay sheeting is fixed below the primary tile or slate roof covering. This sub-roof technology shifts the waterproofing responsibility from the aesthetic covering to a dedicated, engineered secondary layer.

Unmatched Low-Pitch Performance

Traditional tiles often have a minimum pitch requirement (often 20° or higher). ISOLINE LOW LINE acts as the primary waterproofing layer, allowing you to specify tile or slate on pitches as low as 10°.

• Architectural Freedom: Achieve sleek, low-profile rooflines while maintaining a traditional aesthetic.
• Safety Net: Even if the external tiles fail or crack, the building remains 100% watertight.

Why Specify Onduline?

Specifying Onduline systems mitigates the risk of "roof failure" claims. By separating the aesthetic layer (the tiles) from the functional layer (ISOLINE), providing clients with a double-layered defence system.

Other Ranges

• ONDULINE® CLASSIC Roof Sheet: Made from 50% recycled cellulose fibres. The CLASSIC sheet is an extremely tough and flexible lightweight corrugated sheet with a 15-year guarantee. The material used to make ONDULINE® sheets is 4 times quieter than metal sheeting, making them a popular choice for DIY applications and agricultural projects, especially stables housing horses.
• ONDUVILLA® Tile Strip: An attractive and innovative tile designed with a 3-tone colour finish and grooved lap joints to improve weathering performance on all types of timber structures from garden buildings to stables and commercial offices.
• BARDOLINE® roof shingles: Asphalt shingle tile strips to create an attractive traditional roof finish.
• ONDUTISS® membranes: Breathable membranes and façade wraps to protect and insulate all types of buildings, from residential to commercial. Complete waterproofing and protection.

www.onduline.co.uk