75mm Sopratherm GA4075 PIR Insulation Board (formerly Celotex GA4000) is a premium polyisocyanurate (PIR) rigid insulation solution engineered for diverse construction applications. Delivering a thermal conductivity rating of 0.022 W/mK, this high-performance board minimises thermal bridging and enhances building energy efficiency significantly.
Manufactured by Soprema, the 75mm SOPRATHERM insulation boards feature aluminium foil facings on both surfaces, which optimise thermal performance and function as an effective vapour control layer when properly fitted.
The SOPRATHERM GA4075 range carries BBA certification (Certificate 25/7318) and is suitable for multiple construction scenarios, including:
The 75mm SOPRATHERM board is a versatile, multi-purpose insulation solution suitable for numerous building scenarios. Its straightforward cutting and installation characteristics make it ideal for both new construction and retrofit projects. Common applications for this 75mm Soprema product include:
All applications listed are covered under BBA Certificate 25/7318, validating the product's performance in specified construction systems when installed according to manufacturer requirements.
The SOPRATHERM GA4075 achieves Euroclass F classification for Reaction to Fire, as determined by BS EN 13501-1 testing protocols.
Under current UK Building Regulations on combustibility, this product cannot be installed within external walls of relevant buildings exceeding 11 metres in height.
SOPRATHERM PIR insulation boards must be specified, fitted and detailed in line with:
Proper specification and installation guarantee optimal insulation performance within the building envelope and full regulatory compliance.
Explore our complete Sopratherm Insulation product range. We deliver throughout the UK Mainland. For technical advice on product suitability for your project, or to request a volume discount quotation, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.








