Constructing buildings in flood prone high risk zones requires wall materials that can survive temporary water exposure without suffering permanent structural damage, and the EPS Cement Sandwich Panel performs extremely well in these challenging conditions. The closed cell EPS foam core inside each EPS Cement Sandwich Panel is 100% water resistant and will not absorb standing water, unlike traditional wood wall studs, drywall, and fiberglass insulation that get completely ruined after even a short period of flood water exposure. The cement facings on both sides of the panel are also inorganic and will not rot, grow mold, or warp when they come into contact with flood water. After a flood event recedes, you only need to hose down the surface of the EPS Cement Sandwich Panel to clean off mud and contaminants, allow the panels to air dry completely, and the wall system will be almost fully ready for use again without needing major reconstruction work. This drastically reduces the post flood repair costs for property owners, and cuts down the amount of time the building has to stay unoccupied after a flood. Unlike many other wall materials that need to be completely torn out and replaced after even minor flooding, the EPS Cement Sandwich Panel survives temporary water exposure with almost no permanent damage, making it an extremely practical long term investment for properties located in high flood risk regions.