The Xtratherm TR/MG Tapered Roof Board 70-90mm is a high-performance insulation solution designed for flat roofing applications. Manufactured with a rigid polyisocyanurate core and faced with mineral-coated glass tissue, this tapered roof insulation board promotes effective water run-off while delivering excellent thermal efficiency. With a thickness range of 70mm to 90mm and a coverage of 5.76m² per board, it is ideal for creating falls on flat roofs and improving overall roof performance. The Xtratherm TR/MG Tapered Roof Board is lightweight, easy to handle, and suitable for both new build and refurbishment projects.