fiber cement fire rating

First Things First—What Exactly Is Fiber Cement Board? Fiber cement board is a composite material made from Portland cement, cellulose fibers, silica sand, and water. The mix is pressed into sheets of varying thicknesses, cured, and finished to resemble wood siding, stucco, or even brick.

Quick Takeaway: If you’re Googling “is fiber cement board fireproof” at 2 a.m. because your neighbor’s barbecue just torched the fence, relax—fiber cement is officially recognized as non-combustible, but the real-life story is a bit more nuanced. Let’s dig into the details. So, What Exactly