The 50mm Kingspan K15 Kooltherm Rainscreen Board delivers exceptional thermal performance with a fibre-free rigid thermoset phenolic core. Like other 50mm Kingspan insulation products, it achieves outstanding energy efficiency with thermal conductivity as low as 0.021 W/m·K.
BS EN ISO 9001:2008 – Quality Management Systems BS EN ISO 14001:2004 – Environmental Management Systems BS OHSAS 18001:2007 – Health and Safety Management Systems BS EN 13166:2001 – Thermal insulation standards
Kingspan K15 comes in multiple thickness options to match your project requirements, ranging from 50mm through to 100mm, including 60mm, 70mm, 80mm, and 90mm variants.
Kingspan manufactures a comprehensive range of thermal insulation products, including: K5, K7, K12, K15, K103, K108, K110, K118, TP10, TR24, and TR26.
If Kingspan K15 doesn't meet your needs, consider alternative premium brands such as Celotex, Isover, Rockwool, Thinsulex, Tyvek, and Knauf for comparable insulation solutions.
Visit our bulk buy page to access special pricing on insulation products. Larger quantity orders often attract reduced rates, so review our delivery terms before placing your order.
We hold extensive stocks of building materials to provide a complete sourcing solution.
Can't locate the product you need? Contact us via email, complete our contact form, or request a quotation, and our team will source it for you!
Browse our Extruded Polystyrene Insulation range. We deliver across the entire UK Mainland. For product suitability advice or bulk purchase quotations, contact us on +4402039519012, email sales@insulationbee.co.uk, or use Live Chat – Competitive UK Kingspan Greenguard Insulation Pricing.








