Types
Structures are divided into five construction types for the purposes of firefighting, and are listed from least combustible to most combustible:
| Type I: Fire Resistive | Typically used in high-rises. The material comprising the structure is either inherently able to withstand significant exposure to fire (concrete), or in which a fire resistive covering is applied to steel structural members. |
| Type II: Non-combustible | Typically used in strip shopping center malls. Roofs are constructed out of steel rafters. |
| Type III: Ordinary construction | Brick and mortar walls, wood frame floors. City rowhouses are where this type of construction is most often found. |
| Type IV: Heavy timber | Often used in churches or other community-based buildings. |
| Type V: Wood frame | Typically used in recent construction of single-family dwellings, townhouses, garden apartments with four floors or less. |
Read more about this topic: Structure Fire
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