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Kingspan Thermawall TW50 Cavity Wall Insulation is a high-performance solution designed for use in external cavity walls. Each pack includes eight rigid insulation sheets, sized 1200mm x 450mm x 60mm, offering excellent thermal efficiency and moisture resistance. The TW50 insulation boards are lightweight, easy to handle, and simple to install, making them suitable for both new builds and refurbishment projects. Manufactured with a fibre-free rigid thermoset core, this Kingspan cavity wall insulation is engineered to deliver long-lasting performance and help reduce energy costs in residential and commercial buildings.