Can you advise me, What is the exact NFPA code clause that refer to prohibit using combustible material in external facade cladding?
No such code clause to restrict combustible materials for building cladding systems in NFPA 5000:37.1.5 Building and Construction Code. They must pass the acceptance tests of NFPA 258.
The purpose of requiring NFPA 285 compliance is to regulate combustible components in exterior wall assemblies of multi‐story buildings, and limit fire spread to other floors or adjacent areas.
Thanks so much for helpful reply, the case was one storey building and external facade has wooden cladding,
I request fire retardant treatment for wood but client refuse, I sent this point to Authority approval.
The requirements exist in the International Building Code for MCM panels.
A range of fire-rated MCMs have been available on the market for some time but they range in quality - Just because something is ‘fire-rated’ it doesn’t mean that it is acceptable for use in a particular application- However, There are some high performing MCMs that reach an A2 grade when classified according to EN 13501.1. This falls into the defined non-combustibility range.
BS 8414 or NFPA 285 are two alternative test methods for this material in a façade application.
Retrieving data ...