Looking To Improve Your Home And Reduce Energy Costs? Here On This Page You Will Find PIR Insulation Boards. What Does PIR Stand For? PIR Means (Polyisocyanurate), This Product Is Typically Cut Into Boards, Where Would You Use This Product? It Can Be Used In Wall Cavities And As Insulated Plasterboard And Even In Metal Panels. PIR Has High Thermal Properties And Performance, It Requires Only Half The Thickness Of Other Mineral-Based Insulation Products. PIR, Like PUR, Is Known For It’s Use As A Low-Moisture Barrier.