Kingspan Thermaroof TR26 Kingspan Thermaroof TR26 is a high performance insulation with a fibre-free rigid thermoset polyisocyanurate (PIR) core. It is suitable for flat roofs waterproofed with mechanically fixed single-ply waterproofing, and has a thermal conductivity of 0.022 W/mK. Buy yours with us today at www.insulationbee.co.uk or speak to one of our friendly staff on 02038839057
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