Thermaroof TR26 is a flat roof insulation board, offering a thermal conductivity of 0.022 W/mK. It is fully compatible with most mechanically-fixed, single-ply waterproofing systems and most green roof systems. Suitable for new build and refurbishment projects, Therma TR26 is easy to handle and install. It has a composite foil facing on both sides, autohesively bonded to the insulation core during manufacture.