Masons fibre cement sheets are for general purpose use (such as soffits, carports, sheds, cladding, gable ends, rigid wall underlay, tile underlay).They are available in a variety of sizes and widths.They are also for use with the Barricade Weather Defense System – a three-part system, comprising Masons’ 6mm and 9mm fibre cement sheets, Barricade Weather Defense self-adhesive weather-resistive barrier wrap, and flashing tapes for openings.