Construction type comparisons
There are two major code-writing organizations in the United States. Each one has a slightly different way of classifying the type of construction used in their codes. The following is a comparison of the construction type designations used.
|
IBC/IFC |
NFPA |
Common Terminology |
|---|---|---|
| Type IA | I (443) | Fire Resistive, Non-combustible |
| Type IA | I (332) | Fire Resistive, Non-combustible |
| Type IB | II (222) | Fire Resistive, Non-combustible |
| Type IIA | II (111) | Protected Non-combustible |
| Type IIB | II (000) | Unprotected Non-combustible |
| Type IIIA | III (211) | Protected Ordinary |
| Type IIIB | III (200) | Unprotected Ordinary |
| Type IV | IV (2HH) | Heavy Timber |
| Type VA | V (111) | Protected Combustible |
| Type VB | V (000) | Unprotected Combustible |
IBC/IFC – International Building Code / International Fire Code (codes adopted in Minnesota)
NFPA – National Fire Protection Association
Questions?
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