Jablite Claymaster Clay Heave Protection 2400 x 1200mm 50mm (Pack of 12 sheets) is designed to offer effective ground heave protection for foundations in areas with shrinkable clay soils. This Jablite Claymaster product acts as a compressible void former, reducing pressure on foundations caused by soil expansion. Made from high-quality expanded polystyrene, it ensures lightweight handling and easy installation on construction sites. The sheets are suitable for use in residential, commercial, and industrial builds, providing reliable protection and compliance with building regulations. Each pack contains 12 large sheets, making it ideal for covering significant foundation areas efficiently.