How do I create a waterproof barrier when installing Duramax PVC Panels?

To create a fully continuous waterproof barrier in high-moisture or direct-water-contact environments (such as commercial kitchens, car washes, agricultural wash bays, or showers), apply a continuous bead of 100% food-grade silicone sealant (use a sealant complying with FDA Regulation 21 CFR 177.2600 and certified to NSF/ANSI 51.) directly inside the female tongue-and-groove channel before interlocking each panel. Additionally, apply sealant inside the channels of all perimeter trim accessories (J-trims, inside corners, and outside corners) and seal thoroughly around any wall penetrations, such as pipes or electrical boxes, to prevent water from penetrating to the underlying substrate.