The Eco-Versal general purpose insulation boards are suitable for use in pitched roofs, ceilings, floors and walls. EcoTherm Eco-Versal has a fibre free rigid polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Suitable for use in a new build or when upgrading the thermal performance of existing floors, Eco-Versal provides a cost effective means of reducing CO2 emissions and compliance with Building Regulations/Standards. EcoTherm develops, manufactures and supplies thin polyisocyanurate (PIR) rigid thermal insulation board products throughout the UK.PropertiesLength: 2.4m. Width: 1.2m. Thickness: 40mm. rValue: 1.81m2K/W. Weight: 4.72kg per board. Thermal conductivity: 0.022 W/mk - BS EN 12667. Spread of flame: Class 1 - BS 476-7.Features and Benefits Excellent thermal performance: meets Building Regulations/Standards with minimal thickness. Excellent compressive strength when compared to traditional forms of insulation Rigid boards are easy to lay, cut and install An energy Saving Trust Listed product BBA certified