What is the Fire Rating of 3-D Panel?
The 3-D Panel Fire Resistance Ratings are valid for fire exposure from either side. The fire-rating is derived from the wire mesh gauge in combination with concrete thickness. The insulation core (Type 1 Polystyrene Foam) demonstrated a flame-spread index of 25 or less and a smoke developed rating of 450 or less when tested in accordance with ASTM -E84. This modified polystyrene core does not contain ozone-damaging chlorofluorocarbons (CFC's) in the manufacturing process or finished products. The following are the fire ratings per thicknesses of panel:
2.5" Core with 1.50" Shotcrete each side = 1.5 hours2.5" Core with 2.00" Shotcrete each side = 2.0 hours2.5" Core with 3.1/8" Shotcrete each side =4 hoursOur fire rating increases with greater quantities of cement applied to each side. The Polystyrene Core will not burn.
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