The direct bonding system provides a simple and cost effective method for fixing wall boards to brick, block and concrete walls in both new build and refurbishment projects. The Direct Bonding system utilises one layer of plasterboard or insulating boards. These boards are fixed with bonding compound in a regular pattern known as dot and dab, allowing the boards to be fixed with minimum projection. The system allows overriding nominal irregularities in the background and will accommodate shallow service runs within the lining void.