Texmateria
Fiber Cement Board
A sheet material made from cement, fibers, and fillers. It has a flat mineral surface, thin board edges, screw or panel rhythms, and less mass than poured concrete.
Common names
- cement board
- fiber cement siding
- cementitious board
- calcium silicate board
Search phrases
- cement siding board
- flat gray exterior board
- soffit cement board
- fiber cement panel
Common uses
- Exterior siding
- Soffits
- Wet-area backing
- Facade panels
- Fire-resistant boards
Choosing points
- Best for facades, soffits, and backing surfaces where thin flat fire-resistant board is needed.
- It can be painted, textured, or made to imitate wood, stone, or render.
- Cut edges and screw heads often reveal the board nature.
- Large panels need visible joints or fastener logic.
How it ages
- More moisture resistant than gypsum board, but edges, joints, coatings, and fasteners still need protection.
What to avoid
- Do not leave cut edges or fastener penetrations of fiber cement board unsealed in wet exterior use.
