Inverge, with over 85 years of combined waterproofing experience, is committed to offering the highest quality products when it comes to protection of your commercial building from water damage, costly slip and fall accidents, and mold and bacteria growth. The SilGuard™ Drainable Threshold is an ADA compliant device that offers a solution to water intrusion into commercial buildings. With an exceptional drainage rate of a minimum of 2 gallons per minute, there is no easier way to ensure the safety and integrity of your building.