The Multiboard eXBound 17mm – Grooved is a high performance, external boundary wall cladding system with architectural vertical grooves routed in the top surface of the material. The sheets are grooved at different spacings to cater for different architectural aesthetic requirements, suitable for external painted applications. The location of the fibreglass mesh is drawn towards the centre of the board, preventing the exposure of the mesh at the top surface, yet still providing a robust, high fire/acoustic system for residential and commercial applications.