The 1000 Gauge Polythene DPM 250mu (25m x 4m) is a high-quality, durable membrane designed to protect buildings from moisture. This heavy-duty polythene sheeting is perfect for use in construction and building projects as a damp proof membrane (DPM). The product ensures superior resistance against punctures and tears, providing effective protection against the ingress of moisture from the ground. At a size of 25m x 4m, this product can cover large areas easily, ensuring your project stays dry and safe from potential water damage.