As the popularity of wood-based materials in building construction increases, facade-based applications are becoming more desirable and prevalent. Wood’s susceptibility to decay is a familiar phenomenon, and many established preservation methods exist. However, most wood treatments for external use are problematic from human health and environmental perspectives. Conventional preservation chemicals …contain known hazards. …For these reasons, scientists and manufacturers have been developing alternative techniques that are biocompatible and ecologically friendly, aiming to preserve wood effectively without the drawbacks of harmful chemicals. An established example is acetylation, a process that chemically alters wood to make it water resistant without toxic substances. …A Florida Atlantic University research team has developed a method to elevate the mechanical performance of hardwood as well. The technique strengthens the cell walls of trees by introducing an iron compound into their vascular systems. …Other investigations seek to prevent decay before it begins.