Flame Spread
The distance flame spreads from the igniting flame during a 10-minute fire exposure under controlled test conditions in a test tunnel. The results of the test are compared to the flame spread on asbestos-cement board and the flame spread on an untreated red oak floor under similar fire exposure. click here to view .pdf copy of
4 Hour Fire Test.

Material Flame Spread Asbestos-cement board 0 PolySteel Form Less than 10 ft Untreated red oak flooring 100 ft. Maximum accepted by Building Codes 75 ft.

Toxicity
These toxicity tests results compare to the total sum of toxicity factors (carbon monoxide, carbon dioxide, and poisonous chemicals) found in the smoke of burning materials as compared to the smoke from burning red oak.

Material Sum of Toxicity Factors PolySteel Form 20 White Pine 50 Red Oak 100 (the standard) PVC (poly vinyl chloride) 360 Wool 390 ABS (plastic pipe) 280 Urethane (rigid) 290 US Testing Co. Report No. 03298

Smoke Development
The amount of smoke developed during a standardized burning test in a test tunnel. The results are compared to the smoke developed by burning an asbestos-cement board and the smoke developed by burning a red oak floor under similar fire conditions during a 10-mintue period. The amount of smoke development is determined by the light absorption percentage of the smoke using a photoelectric circuit operating across the test furnace flue pipe.

Material Smoke Development Asbestos-cement board 0 Untreated red oak flooring 100 PolySteel Form Less than 300 Maximum accepted by Building Codes 450

Flame spread and smoke development test procedures according to ASTM E84 and similar to the following: UL-723, NFPA No. 255, and UBC 42-1.

Pacific PolySteel, LLC 1-671-483 POLY (7659)

Pacific PolySteel

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