Combustible material . A material that, in the form in which it is used and under the conditions anticipated, will ignite and burn; a material that does not meet the definition of non-combustible or limited-combustible. Façade system . The assembly of framing and materials used to envelope a building.
Non- and limited-combustible concealed spaces with no access are permitted to remain unsprinklered, provided there is limited combustible fuel load. This is intended to permit certain items including, but not limited to, wire sheathing, wire ties, and cable trays with combustible components where acceptable to the authority having jurisdiction.
The Glossary of Terms (GOT) is an NFPA staff managed project. Definitions are extracted from each code and standard and compiled into a PDF. Using comparison functions, we can list each document that uses specific terms and determine which documents use the same definitions of that term.
I have long been impressed that FRTW was a combustible material by NFPA definition and technical product standards ASTM 136 for noncombustible and NFPA 259 for limited-combustible materials were not referenced in the product evaluations from recognized testing labs. Maybe I will learn something new.
3.3.4 Limited-Combustible (Material). Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kJ/kg), when tested in accordance with NFPA 259, Standard Test Method
NFPA 101 has a category for "Limited Combustible" which is similar to the composite exception in IBC. As gb indicated, this is a very tough test, and many common building materials not capable of igniting or burning do not meet it or are not suited to be tested to that standard (aluminum).
This last requirement can be confusing because the three national model building codes, (ICBO's Uniform Building Code, SBCCI's Standard Building Code and BOCA's National Building Code), all allow composite materials that meet the NFPA's definition of limited-combustible, to be classified as noncombustible.
A number of industrial processes produce combustible dust as a by-product. The most common being wood dust.Combustible dust has been defined as: a solid material composed of distinct particles or pieces, regardless of size, shape, or chemical composition, which presents a fire or deflagration hazard when suspended in air or some other oxidizing medium over a range of concentrations.
Noncombustible Construction (ISO) — one of six building construction categories established by Insurance Services Office, Inc. (ISO), in its Commercial Lines Manual (CLM) for purposes of developing rates for insuring commercial property, based on susceptibility to damage by fire.The CLM description of noncombustible construction, followed by the associated ISO construction code, is exterior ...
NFPA Classifications of Flammable and Combustible Liquids The classification system is based primarily on the flash point of the liquid; that is, the minimum temperature at which sufficient vapor is given off the liquid to form an ignitable mixture with air. NFPA 30, Flammable and Combustible Liquids Code, published by the National