72.5mm Insulated Plasterboard Thin R

72.5mm Polyiso Insulated Platerboard is made up of: 12.5mm Plasterboard and 60mm Insulation. The Thermal Resistance of the 72.5mm Board is 2.793 m2K/W. Insulated Plasterboard, Warmboards, Insulated Slabs. Insulation is the most effective way to improve the energy efficiency of your home. Insulation of the building helps keep heat in during the winter, but lets heat out during summer to improve comfort and save energy and keep costs down. Quality, Low cost building materials and insulation products. Build4less.ie supplies all building materials to trade and the public at wholesale and trade prices.