WPC Louvered Panels The In Thing for Interiors & Exteriors Fluted or WPC Louvered Panels: A Louvre is a ventilation product that allows air to pass through it whilst keeping out unwanted elements such as water, dirt and UV marble sheets are designed to replicate the look of natural marble, including its texture, veins, and color variations. They come in a variety of designs and patterns to suit different aesthetic preferences