What is the maximum flame spread index permitted for plastic composite deck boards?

The maximum flame spread index permitted for plastic composite deck boards is set at a value that ensures safety and compliance with fire regulations. The choice of 200 as the maximum flame spread index is reflective of building code standards, which aim to minimize fire hazards in construction materials.

A flame spread index of 200 indicates that plastic composite deck boards can be used while still providing a level of safety that is acceptable for residential and commercial applications. This standard helps to protect lives and property by limiting the speed at which flames can travel across the material's surface in the event of a fire, which is critical for the evacuation of buildings and the effectiveness of firefighting efforts.

Standards like these are established based on extensive testing and research into the materials' behavior under fire conditions. It is important for construction professionals to be aware of these regulations to ensure compliance and safety in their projects.