(Minimum Order 10 boards) BOARDS ARE YELLOW Extruded Polystyrene Insulation boards are designed specifically for use with electric underfloor heating systems, very high compressive strength (30 tonnes / m2), light weight, high efficiency and low cost make this thermal board an ideal choice when fitting heating on to a poorly insulated concrete or screed base and works excellently with underfloor heating underwood and under tile systems. Insulation boards come with 50 year warranty. (Boards could be blue or grey according to stock levels) Dimensions --- The dimensions of each board are 0.72m2 (1200mm x 600mm) Advantages ---Good bonding properties ---Lightweight and strong ---User friendly Installation & Fitting All our products can be installed by a competent DIY'er.