This BBA-certified damp proof membrane from Damplas is a versatile and reliable choice for protecting buildings against the ingress of moisture. It is durable and easy to lay, suitable for use below concrete floors and fully compliant with the minimum standard required for damp proof membranes as stipulated by the UK Building Regulations. It acts as an effective barrier to prevent the ingress of moisture and protects concrete floors against rising damp or moisture. The membrane is 4m wide and supplied in a 15m roll that is easy to lay. Manufactured using 100% recycled polythene. 300mu / 1200 gauge.