Pressure treated
lumber and plywood that is chemically treated to reduce the spread of flames and provide tested fire protection
for applications directly exposed to weather.
May be
substituted for materials classified as noncombustible in certain building
types designated
by the model building codes and requiring ASTM D-2898 conformance.
Combines the
beauty and versatility of wood with the fire safety and insurance
advantages of noncombustible materials.