OBEX CORTEX 0270FR Score’N’Snap Cement Board Class A1 is a lightweight hybrid cement board, featuring the durability and weather resistance of a cement board, but with the workability and install speed of a gypsum board. The Score’N’Snap Board is an external sheathing board that fixes onto Steel Frame Section walls and is suited to demanding outdoor environments that are exposed to heat, moisture and frost. The 0270FR Board is also suitable for internal walls as a substrate for tiles and other decorative finishes such as renders. Typical Uses A sheathing board fixed externally to SFS walling. An internal substrate for tiles and other finishes such as renders.