Quinn Therm PIR Insulation is a high performance, fibre free board, with a rigid thermoset insulation core and faced on both sides with a low emissivity composite foil facing. The high compressive strength of Quinn Therm QF enables it to withstand the dead and imposed loads transmitted through the floor. Quinn Therm PIR is suitable for new build and refurbishments projects in both domestic and commercial build. With specific properties that optimise the performance of underfloor heating. For suspended timber floors in particular, Quinn Therm PIR reduces heat loss by an air infiltration method, making it the ideal solution for upgrading the thermal performance of existing floors. These low emissivity facings increases its thermal resistance of unventilated air space adjacent to the insulation, improving the roof's overall thermal performance. Designed for warm pitched or ventilated cold flat roof constructions on new build projects or on refurbishment projects where the roof is to be stripped and re-covered