StormMeister™ Flood Doors, the only flood door fitted with a unique Active Flood Seal™ mechanism maintained by pressure of flood water. Ordinary flood doors use conventional passive seals which attempt to resist the pressure of rising flood water. StormMeister™ Flood Doors utilize that pressure in their Active Flood Seal™ mechanism maintaining effective flood resistance long after passive seals have failed. Under test conditions StormMeister™ Flood Doors maintain zero leakage for periods in excess of 24 hours exceeding PAS 1188-1:2014 the industry standard by some considerable margin. Testing can be viewed at our new testing facility where you can see zero leakage at 600 mm flood height with ongoing flood resistance to heights well beyond that.