Browse our range of Cellecta Hexatherm XMD insulation boards, available in multiple thicknesses from 56mm to 166mm. Manufactured from high-performance extruded polystyrene (XPS) with a durable 6mm high-impact cementitious facing, Hexatherm XMD is specifically developed for inverted roof vertical upstands where superior thermal performance, moisture resistance, and compressive strength are essential. Suitable for residential, commercial, and industrial roofing applications, these boards help reduce thermal bridging while providing long-term durability and energy efficiency.