Look of Shiplap/Planked Walls Near Heat (Stove/Fireplace) - Use Hardi Plank Siding. It is composed of brick and cement and other similar materials (fiber cement siding) that make it fire resistant and non-combustible. USE THE BACK SIDE!! Along the front top edge there is lettering that is hidden when installed like siding. You want to flip it over and use the back.