60mm Kingspan TW55 ThermaWall PIR Insulation Board 2.4m x 1.2m Sheet Materials single sheets let you buy
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60mm Kingspan TW55 ThermaWall PIR Insulation Board 2.4m x 1.2m Sheet Materials single sheets let you buy60mm Kingspan Thermawall TW55 is a rigid thermoset polyisocyanurate (PIR) board designed for timber frame and steel frame wall constructions, faced on both sides with low emissivity composite foil. Each 2400mm x 1200mm board covers 2. 88m and delivers a declared thermal resistance of 2. 70 mK W from a thermal conductivity of 0. 022 W mK. This thickness suits 89mm studwork particularly well. Filling 60mm of an 89mm bay leaves a 29mm gap that can be
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