Xtratherm TR/BGM is part of Xtratherms comprehensive range of high-performance tapered roof boards providing total solutions for tapered roof projects. The high performance Polyisocyanurate tapered roof insulation has a polypropylene fleece finished bitumen/glass fibre working surface and a mineral glass facing to the underside. TR/BGM is suitable for use below most bitumen based partially bonded built up roofing systems and can be used on roof decks that are subject to limited maintenance foot traffic. The fall on a flat roof should be designed to ensure that rainfall does not pond. TR/BGM provides a practical solution to Water Ponding with insulation and drainage in a single system. Benefits of Xtratherm TR/BGM High performance rigid insulation Thermal conductivity as low as 0.024W/mK Compatible with the most bituminous based roofing systems Non-deleterious material Manufactured without the use of CFCs/HCFCs Zero ODP and Low GWP Suitable for New Build and Refurbishment Projects Practical Solution to Water Ponding with Insulation and Drainage of a Single System Properties Length: 1200mmWidth: 1200mmThickness: 70-90mmFall: 1:60Board Size: 1.44m2Boards Per Pack: 4Density (foam core): 32 kg/m3Compressive strength: >150 kPa @ 10% CompressionThermal conductivity: 0.0.24 - 0.027 W/mK