Interior Finishes / Flame Spread
- Defined as, "The exposed interior surfaces of buildings including, but not limited to fixed or movable walls and partitions, columns, and ceilings." (NFPA 101)
- Does not apply to decorations and furnishings
- Usually not the first item ignited. After the fire has started and intensified, interior finish can contribute significantly to the spread.
- Combustible interior finish adds to the fuel load within a room. Chances of flashover (simultaneous ignition) are increased.
- Interior finish relates to a fire in four ways. It can:
- Affect the rate of fire buildup to a flashover condition
- Contribute to fire extension by flame spread over its surface
- Add to fire intensity by increasing fuel load
- Produce smoke and toxic gases that contribute to life hazard and property damages.
- Principal measurement used in codes for evaluating interior finish has been the flame spread of the material. Flame spread is measured by the Steiner Tunnel Test. Flame spread of a material indicates the relat.ive speed with which flame will propragate across the surface of the material.
INDEX Interior Finishes / Flame Spread
FPT 102 - Fire Prevention and Inspection // Instructor: Kevin M. Kolb