WATCHDOG WATERPROOFING® is a polymer-modified asphalt coating that is manufactured by Tremco Barrier Solutions - The makers of TUFF-N-DRI® Basement Waterproofing. It is a very flexible membrane that can handle movement and minor/medium cracking. It Provides a completely seamless waterproofing membrane. It is polymerized to provide resistance to chemical breakdown. It is durable for long term water protection.