150mm EcoTherm Eco-Versal Insulation Boards are multi-purpose thermal solutions that can be used in both new and refurbishment projects. These 150mm rigid polyisocyanurate (PIR) boards are made up of a core of fibre-free material flanked by two layers of aluminium foil on either side. EcoTherm 150mm insulation boards are versatile and can be used for floors, walls, ceilings and pitched roofs.. These 150mm EcoTherm insulation boards are second only to phenolic insulation for thermal efficiency. They have a lambda value of just 0.022 W/mK. 150mm EcoTherm insulation boards are cost-effective and environmentally friendly, making them a good choice for reducing CO2 emissions. They can also be used in a variety of building projects.