Billed by the company as offering the “perfect blend of sustainability and innovation,” Onduline’s ISOLINE LOW LINE sub-roof system not only offers long-term protection against any potential water ingress, but also incorporates 50% recycled cellulose fibres, contains no asbestos, and releases no hazardous substances.
Designed specifically for use on low pitch roofs — as low as 10° — the lightweight bituminous underlay sheeting is fitted under roof tiles, thus being shielded from direct UV exposure and elements such as wind and leaf debris, making it an exceptional long-lasting waterproofing solution.
Furthermore, by establishing roof tiles as a secondary line of defence, it becomes possible to maintain a roof pitch significantly lower than the minimum recommended by the tile manufacturer. This not only addresses the need to maximise living space, given the reduced pitch that minimises the roof void, but it also opens up opportunities for the application of traditional tiles in situations where they wouldn’t have been able to be utilised previously, such as extensions or large roofing projects, greatly enhancing the overall aesthetic appeal of a property.
Reportedly the only sub-roof system in the UK to be BRE tested and BBA Accredited to as low as 10°, the solution also benefits from a 30-year guarantee.
Onduline has recently launched an improved installation guide for the ISOLINE LOW LINE roofing system. In addition to offering a comprehensive overview, the updated guide provides details on how to create a watertight pipe or vent penetration, how to integrate photovoltaic (PV) fixings and solar panels into the roof structure, as well as advice on fixings and the different types of battens the system is compatible with.
Click the following link for more information: www.onduline.co.uk
