The building materials industry is witnessing another step in the evolution of wood alternatives as U.S.-based Modern Mill has expanded its ACRE product portfolio with a new line of composite roofing shingles manufactured from a blend of upcycled rice hulls and PVC.
The launch reflects a growing trend toward engineered composite building materials that combine recycled agricultural waste with polymer technology to deliver improved durability, lower maintenance, and enhanced sustainability compared to conventional wood products.
According to the company, the shingles are designed to replicate the natural appearance of cedar shake roofing while offering resistance to moisture, insects, rot, and weathering—common challenges associated with traditional timber roofing.
Unlike conventional wood shingles, the composite material does not splinter or rot and can be cut, fastened, stained, or painted using conventional woodworking tools, making installation familiar for contractors while reducing long-term maintenance requirements.
The material is produced using rice hulls—an agricultural by-product that would otherwise have limited commercial value—combined with a proprietary PVC-based polymer matrix. The approach diverts agricultural waste from disposal while reducing reliance on virgin timber, aligning with broader sustainability objectives within the construction industry.
For the PVC industry, the development highlights how polymer technology is expanding well beyond traditional applications such as pipes, window profiles, flooring, and siding.
Composite formulations incorporating PVC and natural fibres or agricultural residues are increasingly finding acceptance in premium building products, where manufacturers seek to combine the aesthetics of wood with the durability and dimensional stability of engineered polymers.
The launch also reflects broader trends in the global construction materials market. Architects, builders, and homeowners are placing greater emphasis on lifecycle performance, moisture resistance, and reduced maintenance, creating opportunities for composite materials that can outperform conventional products in demanding outdoor environments.
Industry analysts believe engineered composites will continue gaining market share across roofing, siding, decking, trim, fencing, and façade applications as sustainability considerations increasingly influence material selection.
For PVC compounders and additive suppliers, such products represent another example of how advanced polymer formulations are enabling innovation beyond traditional construction markets. The combination of recycled agricultural feedstocks with durable PVC matrices illustrates the growing role of composite technologies in delivering high-performance, lower-maintenance alternatives to natural wood.