Fiber cement board is a building material made of Portland cement reinforced with cellulose fibers and sand. Fiber cement boards is used for interior and exterior spaces that require water resistant boards as well as moisture and fire ratings. Did you know there is a difference between Fiber Cement board (FCB) and Cement Board (CB)? Cement board does not contain reinforced fibers and they tend to break easily when mishandled but still offer the same purpose as Fiber Cement Board.Read More …