A decorative fence panel including opposite plastic walls that have opposite facing exterior surfaces. Each wall has a grid of traversing elongated channels formed by inward bending in the walls to define a decorative profile of a fence. A plurality of separate and discrete connections is disposed across the decorative fence panel. The connections are formed between the opposite walls by select intersections of the grids of traversing channels of the opposite walls. The connections form a plurality of continuous material nodes of thermal energy transfer paths between the opposite walls to transfer thermal energy between the opposite walls.