The AIA Housing and Community Development Knowledge Community (HCD) tracks housing issues and develops relationships with industry stakeholders to encourage and promote safe, attractive, accessible, and affordable housing for all Americans.
Overall, the IBC identifies each major category of combustible component in an exterior wall, and provides detailed limitations and allowances for each type. For each such combustible component, there are typically individual component requirements, such as ASTM E84 flame spread index limits and ASTM E1354 cone calorimeter heat release limits. Making compliance easier, each section also includes several exceptions and exemptions. For example, NFPA 285 compliance is exempted for combustible exterior cladding that is installed not higher than 40 feet above grade. (Source)
The first really useful information for US architects I've seen. Thanks.
Ward Bucher, AIA, APT
Encore Sustainable Design LLC
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