Vapour & Air Permeable Underlays

Introduced in 1996 by Don & Low, Roofshield® was the first air and vapour permeable roofing underlay to hit the UK market, revolutionising an entire industry. With its advanced technology, this versatile and easy-to-install three-layer membrane allows the passage of moisture to significantly reduce the incidence of interstitial condensation and mould growth in pitched roofs while also providing a superior, weather-proof secondary barrier. By eliminating the need for ventilation, Roofshield® speeds up roof completion and reduces labour costs.

As a testament to its consistent performance and reliability, Roofshield® is certified by the BBA in the UK for use in unventilated cold and warm-pitched roofs in both fully supported and unsupported roofing applications.

Vapour Permeable - Air Barrier Underlays

RoofTX® is a range of low resistance vapour permeable, air barrier underlays specifically engineered to enable the passage of moisture while effectively resisting air penetration. The RoofTX® range consists of six distinct products, each differing in weight and properties, catering to diverse project requirements. It is also well-suited for fully supported or unsupported cold and warm systems. Offering a lightweight alternative to traditional bituminous felts, with excellent flexibility even at low temperatures, RoofTX® is certified by the BBA in the UK and the NSAI for the Irish market. The RoofTX® range is also available in RoofTX® Conseal versions, boasting a single, factory-applied, integral tape for easier installation and overlaps sealing.

Vapour & Air Barrier Underlays

MultiTX® is a family of high-resistance air and vapour barrier roofing membranes designed as a modern, cost-effective, lightweight alternative to traditional bituminous-based felts. The extended MultiTX® range consists of four distinct products, differing in weight and design: MultiTX® Plus (116g), MultiTX® Pro (146g) and MultiTX® Maxi (190g) are certified by the BBA for use in tiled and slated ventilated pitched roofs, in both supported and unsupported applications. MultiTX® Solar, which is designed specifically for integrated solar roofs, completes the family.