Decisions, decisions. Are we the last to find out that PIR insulation is broadly not available at the moment (and probably not until early next year at best) due to a manufacturing incident in Germany. That's not good news for our programme or the specified Celotex FR5100 floor insulation planned throughout the ground floor.
Fortunately there’s still some phenolic around (albeit at a premium), so quick change of spec and now we’re waiting for a truck load of Kingspan K3 Floorboard. If there is a silver lining then the thermal conductivity for the K3 is slightly better (at 0.020W/mK), than Celotex’s 0.021. Tempted to go further and upgrade to Kingspan’s new K103 that replaces the K3, with an even better lambda value of 0.018 W/mK, but that improvement comes with a hefty price tag so we’ll stick with the K3, thanks very much. Get it while you can.
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Russel and Anna Hayden
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