Ideal substrate for exterior walls in ventilated or water-managed systems (direct-applied). Also for façade renovations and outdoor ceiling applications. Aquaplanel® Cement Board Outdoor is a powerful, non-combustible construction panel made of Portland cement coated with coated glass fiber embedded in the back and front surfaces. It offers all the benefits of a dry panel system with brick and block strength. The edges are square cut and the edges are reinforced for additional strength (The EasyEdge®). The panel provides a solid foundation that withstands extreme weather conditions.