70mm Kingspan Kooltherm K5 External Wall Insulation Board 1200mm x 600mm (4.32m2/Pack)

Kingspan Kooltherm K5 External Wall Insulation Board with a 70mm thickness. This rigid phenolic insulation board is designed for external wall insulation systems on masonry substrates. It incorporates a fibre-free thermoset phenolic core with glass tissue-based facings to support compatibility with traditional and lightweight polymer-modified render systems. The board provides low thermal conductivity to enhance external wall performance while offering resistance to air infiltration and water vapour movement within the façade system. Its rigid, lightweight construction supports efficient installation and integration into new build or refurbishment wall upgrades. The 70mm board is suited to external wall systems requiring deeper insulation to achieve lower U-values within insulated render build-ups.