Fire Prevention Technical Information

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Technical Information

James Hardie fiber-cement exteriors have been tested by various IAS Certified Laboratories to ASTM International standards and are classified as listed below:

Non-combustible (ASTM E136)

See Section 3.1 of the NER-405 Report or
See the Warnock Hersey Product Listings

Approved for fire-resistance rated construction (ASTM E119)

See JamesHardie® Fire-Resistance Rated Wall Assemblies

Flame spread index of 0 (ASTM E84)

See Section 3.1 of the NER-405 Report or
See the Warnock Hersey Product Listings

Smoke developed index of < 5 (ASTM E84)

See Section 3.1 of the NER-405 Report or
See the Warnock Hersey Product Listings

The NER-405 is a National Evaluation Report published by the International Code Council Evaluation Services showing testing and installation for all James Hardie products.