Kingspan 150mm Thermaroof TR26 Flat Roof Insulation - 5.76m2 Pack Properties High performance rigid thermoset insulation “ thermal conductivity 0.022 W/m.K. LPCB approved to LPS 1181: Part 1. FM approved for Class 1 steel deck roof assemblies. Fully compatible with most mechanically fixed single“ply waterproofing systems. Compatible with most green roof systems. Installation technique is ideal for fast track building programmes. Resistant to the passage of water vapour. Easy to handle and install. Ideal for new build and refurbishment. Non“deleterious material. Manufactured with a blowing agent that has zero ODP and low GWP Insulation. Insulation for flat roofs waterproofed with mechanically fixed single-ply waterproofing. TR26 LPC/FM LPS 1181: Part 1. Certificate No. 388b/01. Class 1 Roof Construction. Low Energy “ Low Carbon.