Which material are cornices found on new strip malls likely made of?

In modern construction, particularly for new strip malls, cornices are frequently made from polystyrene. This material is favored due to its lightweight properties, ease of installation, and resistance to moisture, which contributes to its durability. Polystyrene can be easily molded into various designs and shapes, allowing for architectural detailing without the heavier structural implications associated with materials like wood or metal.

While wood may have been a traditional choice for cornice work, it often requires more maintenance and presents higher concerns regarding weather exposure. Metal, despite offering a sleek finish and durability, can contribute to thermal transfer issues and might not provide the desired aesthetic in every application. Vinyl can be a viable option for some residential and commercial applications, yet it is less commonly used in the more traditional and decorative cornice work found in strip mall architecture compared to polystyrene.

Thus, polystyrene stands out as the most suitable and commonly used material for cornices in contemporary strip mall construction due to its practicality and design versatility.