D-Blaze® Fire Retardant Treated Wood (FRTW) is for interior and weather protected exterior applications where fire retardant construction materials are specified. D-Blaze treated lumber and plywood are highly effective in controlling the spread of flame, smoke and devastation caused by fire.
D-Blaze treated products are tested and certified by Underwriters Laboratories (UL) and have a “FRS” rating under UL classification, exhibiting a flame spread and smoke rating of 25 or less. In most applications, D-Blaze treated products offer a lower in- place cost than noncombustible classified materials. Additional Information.