fiber cement board is almost the perfect exterior siding. Made of wood pulp and cement, it is durable, low maintenance, and resistant to fire, bugs, rodents, mold, and moisture. It can be made to look like wood clapboards or shingles, stucco, stone, and brick. It can even be painted or stained. Can you say versatile?
You save more than once with fiber cement. It has energy efficient properties, adding insulation to your home to help cut heating and cooling bills. It is also less expensive than the sidings it can imitate, which gives you a good return on your investment.
selected from: https://www.builddirect.com/blog/how-to-use-fiber-cement-board-as-an-interior-surface/